Os novos parâmetros do Oracle Database 12c

Por Flavio Soares (OCE) e Joel Pérez Oracle ACE Director
Postado em Maio 2016

Revisado por Marcelo Pivovar - Solution Architect

A cada nova versão do Oracle Database, novas funcionalidades, novas “features” e novas correções de bug’s são adicionados ao banco de dados e com isso novos parâmetros para controlar tudo isso. E não é de hoje que esses novos parâmetros são adicionados a uma nova versão de Oracle.

Exatamente na versão 9i Release 9.2.0.8.0 existiam cerca de 871 parâmetros de configuração do Oracle entre é claro parâmetros documentados e não documentados, já na versão 10g no Release 10.2.0.4.0 esse número passou para incríveis 1495 parâmetros, exatos 624 parâmetros a mais do que na versão anterior. Já com a versão 11g Release 11.2.0.4.0 que contém exatamente 2914 parâmetros, cerca de 2043 parâmetros a mais do que na versão 9i.

Com o lançamento do Oracle Database 12c, podemos mais uma vez fazer esse comparativo, isso através da table Oracle memory x$ksppi, que fornece todos os parâmetros documentados, parâmetros ocultos documentos e parâmetros ocultos não documentados pelo Oracle Database. É por intermédio dessa x$ table que podemos observar as diferenças de parâmetros entre uma versão e outra.

Veja o caso na versão 11g Release 11.2.0.4.0, temos exatos 2914 parâmetros:

SQL>  select count(*) from x$ksppi;

COUNT(*)
----------
2914

1 row selected.

SQL>

Já na versão 12c (12.1.0.2.0), esse número passou para 3978:

SQL>  select count(*) from x$ksppi;

COUNT(*)
----------
3978

SQL>

Quase mil parâmetros a mais do que na versão anterior. Outro fato interessante que na versão 12.1.0.1.0 para a versão 12.1.0.2.0, já temos uma grande diferenças de novos parâmetros:

Oracle 12c (12.1.0.1.0)

SQL>  select count(*) from x$ksppi;

COUNT(*)
----------
3351

1 row  selected.

SQL>

Oracle 12c (12.1.0.2.0)

SQL>  select count(*) from x$ksppi;

COUNT(*)
----------
3978

1 row selected.

SQL>

Abaixo está a lista completa de todos os parâmetros que estão somente na versão Oracle 12c, ou seja, todos os parâmetros a seguir são os novos parâmetros do Oracle 12c. Para conseguir isso, estou utilizando uma tabela temporária que criei chamada ksppi, que nada mais é que uma CTAS (Create Table AS) da x$ table x$ksppi, isso foi feito para conseguir realizar a consulta nos dados da x$ utilizando dblink.

Lembrando também que essa é a lista de todos os parâmetros documentos, ocultos documentados e ocultos não documentados. Nem preciso dizer que não é para você mudar qualquer um dos parâmetros ocultos abaixo, principalmente no seu banco de produção, sem antes ter a permissão do suporte Oracle. Tenha muito cuidado com qualquer um desses parâmetro ocultos.

Aqui a lista, com a descrição de cada parâmetro:

SQL> COLUMN PARAMETER_ONLY_12C FORMAT a50

SQL> SELECT 
	  2   KSPPINM  PARAMETER_ONLY_12C
	  3     FROM  ksppi 
	  4     WHERE KSPPINM NOT IN (
	  5     SELECT KSPPINM parameter_name_11g 
          6     FROM ksppi@db11g
          7   );

PARAMETER_ONLY_12C                             
----------------------------------------
_appqos_po_multiplier                   
_appqos_cdb_setting                     
_latch_wait_list_pri_sleep_secs 
__wait_test_param                       
_system_state_runtime_limit             
_system_state_cputime_limit             
_enqueue_sync_retry_attempts      
_enqueue_sync_sim_mem_error             
_number_group_memberships_per_cache_line
_ksdxw_stack_readable                                 
_touch_sga_pages_during_allocation             
_realfree_heap_pagesize                        
_realfree_pq_heap_pagesize                     
_kgh_restricted_trace                                 
_kgh_restricted_subheaps                       
_defer_sga_enabled                             
_defer_sga_min_total_defer_segs_sz             
_defer_sga_alloc_chunk_size                           
_defer_sga_min_spsz_at_startup                 
_defer_sga_test_alloc_intv                     
_sga_alloc_slaves_term_timeout_secs            
_ksmlsaf                                       
_pga_limit_target_perc                                
_pga_limit_watch_perc                                 
_pga_limit_time_to_interrupt                   
_pga_limit_interrupt_smaller                   
_pga_limit_time_until_idle                     
_pga_limit_time_until_killed                   
_pga_limit_use_immediate_kill                  
_pga_limit_dump_summary                        
_pga_limit_watch_size                                 
_pga_limit_min_req_size                        
_pga_limit_check_wait_time                     
_pga_limit_simulated_physmem_size       
_pga_limit_physmem_perc                        
_sga_data_protection_disabled                  
_sga_dp_precise_errors                                
_sga_heap_chunk_alignment                      
_sga_heap_chunk_alignment_disabled             
_sga_dp_bytes_per_alloc                        
_NUMA_bind_mode                                
pga_aggregate_limit                            
_pga_limit_tracing                             
_test_param_8                                  
_highest_priority_processes                           
_os_sched_highest_priority                     
_bg_spawn_diag_opts                            
_mpmt_enabled_backgrounds                      
_background_process_opts                       
_kse_snap_ring_suppress                        
_kse_snap_ring_disable                                
_enqueue_deadlock_detect_all_global_locks
_enable_kernel_io_outliers                     
_dnfs_rdma_max                                        
_dnfs_rdma_min                                        
_dnfs_rdma_enable                              
_simulate_logical_sectorsize                   
_io_outlier_threshold                                 
_lgwr_io_outlier                               
_asm_access                                    
_ksfd_fob_pct                                  
_use_dynamic_shares                            
_dynamic_share_range_factor                           
_cpu_util_adj_force                            
_cpu_util_adj_target                                  
_high_threshold_delta                                 
db_performance_profile                                
_rm_force_caging
_ksv_slave_exit_timeout                        
_twenty-ninth_spare_parameter                  
_thirty-ninth_spare_parameter                  
_forty-first_spare_parameter                   
_forty-second_spare_parameter                  
_forty-third_spare_parameter                   
_forty-fourth_spare_parameter                  
_forty-fifth_spare_parameter                   
_forty-sixth_spare_parameter                   
_forty-seventh_spare_parameter                 
_forty-eighth_spare_parameter                  
_forty-ninth_spare_parameter                   
_fiftieth_spare_parameter                      
_fifty-first_spare_parameter                   
_fifty-second_spare_parameter                  
_fifty-third_spare_parameter                   
_fifty-fourth_spare_parameter                  
_fifty-fifth_spare_parameter                   
_fifty-sixth_spare_parameter                   
_fifty-seventh_spare_parameter                 
_fifty-eighth_spare_parameter                  
_fifty-ninth_spare_parameter                   
_sixtieth_spare_parameter                      
_sixty-first_spare_parameter                   
_sixty-second_spare_parameter                  
_sixty-third_spare_parameter                   
_sixty-fourth_spare_parameter                  
_sixty-fifth_spare_parameter                   
_sixty-sixth_spare_parameter                   
_sixty-seventh_spare_parameter                 
_sixty-eighth_spare_parameter                  
_sixty-ninth_spare_parameter                   
_seventieth_spare_parameter                           
_seventy-first_spare_parameter                 
_seventy-second_spare_parameter         
_seventy-third_spare_parameter                 
_seventy-fourth_spare_parameter         
_seventy-fifth_spare_parameter                 
_seventy-sixth_spare_parameter                 
_seventy-seventh_spare_parameter        
_seventy-eighth_spare_parameter         
_seventy-ninth_spare_parameter                 
_eightieth_spare_parameter                     
_eighty-first_spare_parameter                  
_eighty-second_spare_parameter                 
_eighty-third_spare_parameter                  
_eighty-fourth_spare_parameter                 
_eighty-fifth_spare_parameter                  
_eighty-sixth_spare_parameter                  
_eighty-seventh_spare_parameter         
_eighty-eighth_spare_parameter                 
_eighty-ninth_spare_parameter                  
_ninetieth_spare_parameter                     
_ninety-first_spare_parameter                  
_ninety-second_spare_parameter                 
_ninety-third_spare_parameter                  
_ninety-fourth_spare_parameter                 
_ninety-fifth_spare_parameter                  
_ninety-sixth_spare_parameter                  
_ninety-seventh_spare_parameter         
_ninety-eighth_spare_parameter                 
_ninety-ninth_spare_parameter                  
_one-hundredth_spare_parameter                 
_one-hundred-and-first_spare_parameter  
_one-hundred-and-second_spare_parameter 
_one-hundred-and-third_spare_parameter  
_one-hundred-and-fourth_spare_parameter 
_one-hundred-and-fifth_spare_parameter  
_one-hundred-and-sixth_spare_parameter  
_one-hundred-and-seventh_spare_parameter
_one-hundred-and-eighth_spare_parameter 
_one-hundred-and-ninth_spare_parameter  
_one-hundred-and-tenth_spare_parameter  
_one-hundred-and-eleventh_spare_parameter             
_one-hundred-and-twelfth_spare_parameter       
_one-hundred-and-thirteenth_spare_parameter           
_one-hundred-and-fourteenth_spare_parameter           
_one-hundred-and-fifteenth_spare_parameter            
_one-hundred-and-sixteenth_spare_parameter            
_one-hundred-and-seventeenth_spare_parameter          
_one-hundred-and-eighteenth_spare_parameter           
_one-hundred-and-nineteenth_spare_parameter           
_one-hundred-and-twentieth_spare_parameter            
_one-hundred-and-twenty-first_spare_parameter         
_one-hundred-and-twenty-second_spare_parameter        
_one-hundred-and-twenty-third_spare_parameter         
_one-hundred-and-twenty-fourth_spare_parameter        
_one-hundred-and-twenty-fifth_spare_parameter         
_one-hundred-and-twenty-sixth_spare_parameter         
_one-hundred-and-twenty-seventh_spare_parameter        
_one-hundred-and-twenty-eighth_spare_parameter        
_one-hundred-and-twenty-ninth_spare_parameter         
_one-hundred-and-thirtieth_spare_parameter            
_one-hundred-and-thirty-first_spare_parameter         
_one-hundred-and-thirty-second_spare_parameter        
_one-hundred-and-thirty-third_spare_parameter         
_one-hundred-and-thirty-fourth_spare_parameter        
_one-hundred-and-thirty-fifth_spare_parameter         
_one-hundred-and-thirty-sixth_spare_parameter         
_one-hundred-and-thirty-seventh_spare_parameter        
_one-hundred-and-thirty-eighth_spare_parameter        
_one-hundred-and-thirty-ninth_spare_parameter         
_one-hundred-and-fortieth_spare_parameter             
_one-hundred-and-forty-first_spare_parameter          
_one-hundred-and-forty-second_spare_parameter         
_one-hundred-and-forty-third_spare_parameter          
_one-hundred-and-forty-fourth_spare_parameter         
_one-hundred-and-forty-fifth_spare_parameter          
_one-hundred-and-forty-sixth_spare_parameter          
_one-hundred-and-forty-seventh_spare_parameter        
_one-hundred-and-forty-eighth_spare_parameter         
_one-hundred-and-forty-ninth_spare_parameter          
_one-hundred-and-fiftieth_spare_parameter             
_one-hundred-and-fifty-first_spare_parameter          
_one-hundred-and-fifty-second_spare_parameter         
_one-hundred-and-fifty-third_spare_parameter          
_one-hundred-and-fifty-fourth_spare_parameter         
_one-hundred-and-fifty-fifth_spare_parameter          
_one-hundred-and-fifty-sixth_spare_parameter          
_one-hundred-and-fifty-seventh_spare_parameter        
_one-hundred-and-fifty-eighth_spare_parameter         
_one-hundred-and-fifty-ninth_spare_parameter          
_one-hundred-and-sixtieth_spare_parameter             
_one-hundred-and-sixty-first_spare_parameter          
_one-hundred-and-sixty-second_spare_parameter         
_one-hundred-and-sixty-third_spare_parameter          
_one-hundred-and-sixty-fourth_spare_parameter         
_one-hundred-and-sixty-fifth_spare_parameter          
_one-hundred-and-sixty-sixth_spare_parameter          
_one-hundred-and-sixty-seventh_spare_parameter        
_one-hundred-and-sixty-eighth_spare_parameter         
_one-hundred-and-sixty-ninth_spare_parameter          
_one-hundred-and-seventieth_spare_parameter           
_one-hundred-and-seventy-first_spare_parameter        
_one-hundred-and-seventy-second_spare_parameter        
_one-hundred-and-seventy-third_spare_parameter        
_one-hundred-and-seventy-fourth_spare_parameter        
_one-hundred-and-seventy-fifth_spare_parameter        
_one-hundred-and-seventy-sixth_spare_parameter        
_one-hundred-and-seventy-seventh_spare_parameter      
_one-hundred-and-seventy-eighth_spare_parameter        
_one-hundred-and-seventy-ninth_spare_parameter        
_one-hundred-and-eightieth_spare_parameter            
_one-hundred-and-eighty-first_spare_parameter         
_one-hundred-and-eighty-second_spare_parameter        
_one-hundred-and-eighty-third_spare_parameter         
_one-hundred-and-eighty-fourth_spare_parameter        
_one-hundred-and-eighty-fifth_spare_parameter         
_one-hundred-and-eighty-sixth_spare_parameter         
_one-hundred-and-eighty-seventh_spare_parameter        
_one-hundred-and-eighty-eighth_spare_parameter        
_one-hundred-and-eighty-ninth_spare_parameter         
_one-hundred-and-ninetieth_spare_parameter            
_one-hundred-and-ninety-first_spare_parameter         
_one-hundred-and-ninety-second_spare_parameter        
_one-hundred-and-ninety-third_spare_parameter         
_one-hundred-and-ninety-fourth_spare_parameter        
_one-hundred-and-ninety-fifth_spare_parameter         
_one-hundred-and-ninety-sixth_spare_parameter         
_one-hundred-and-ninety-seventh_spare_parameter        
_one-hundred-and-ninety-eighth_spare_parameter        
_one-hundred-and-ninety-ninth_spare_parameter         
_two-hundredth_spare_parameter                        
_two-hundred-and-first_spare_parameter                
_two-hundred-and-second_spare_parameter        
_two-hundred-and-third_spare_parameter                
_two-hundred-and-fourth_spare_parameter        
_two-hundred-and-fifth_spare_parameter                
_two-hundred-and-sixth_spare_parameter                
_two-hundred-and-seventh_spare_parameter       
_two-hundred-and-eighth_spare_parameter        
_two-hundred-and-ninth_spare_parameter                
_two-hundred-and-tenth_spare_parameter                
_two-hundred-and-eleventh_spare_parameter             
_two-hundred-and-twelfth_spare_parameter       
_two-hundred-and-thirteenth_spare_parameter           
_two-hundred-and-fourteenth_spare_parameter           
_two-hundred-and-fifteenth_spare_parameter            
_two-hundred-and-sixteenth_spare_parameter            
_two-hundred-and-seventeenth_spare_parameter   
_two-hundred-and-eighteenth_spare_parameter           
_two-hundred-and-nineteenth_spare_parameter           
_two-hundred-and-twentieth_spare_parameter            
_ksipc_mode                                    
_ksipc_libipc_path                             
_ksipc_wait_flags                              
_ksipc_spare_param1                            
_ksipc_spare_param2                            
_ksxp_ksmsq_ip_config                          
_ksxp_ipclw_enabled                            
_ipc_config_opts_stat                          
_ipc_config_opts_dyn                           
_ksipc_efchecks                                
_datapump_metadata_buffer_size          
_datapump_tabledata_buffer_size   
_datapump_compressbas_buffer_size 
_midtier_affinity_cluswait_prc_threshold
_disable_modsvc_refresh                        
threaded_execution                             
_mpmt_single_process_instance                  
_mpmt_procs_per_osp                            
_prespawn_batch_count                                 
_dataguard_prespawn_count                      
_proc_grp_enabled                              
_min_time_between_psp0_diag_secs        
_disable_rolling_patch                                
_deadlock_record_to_alert_log                  
_process_heartbeat_range                       
_lthread_cleanup_intv_secs                     
_lthread_enabled                               
_lthread_debug                                        
_lthread_max_spawn_time_csecs                  
_lthread_spawn_check_intv_ms                   
_lthread_clnup_pmon_softkill_wait_secs
_lthread_clnup_spawner_sk_wait_secs            
_lthread_clnup_hk_wait_secs                           
_lthread_step_debugging                        
_full_diag_on_rim                              
_hang_cross_boundary_hang_detection_enabled           
_hang_resolution_percent_hung_sessions_threshold      
_hang_terminate_session_replay_enabled                
_diag_xm_enabled                               
_hm_xm_enabled                                        
_lm_hash_control                               
_ges_server_processes                          
_lm_lms_opt_priority                           
_lm_lms_priority_check_frequency  
_lm_db_rank                                    
_lm_db_ranks                                   
_lm_cache_enqueue                              
_lm_reloc_use_mhint                            
_lm_rcfg_kjcdump_time                          
_lm_enqueue_blocker_dump_timeout_cnt                  
_lm_num_bnft_stats_buckets                     
_lm_exchange_opt                               
_lm_drm_we_size                                
_lm_drm_we_interval                            
_read_mostly_instance                                 
_read_mostly_instance_qa_control        
_read_mostly_slave_timeout                     
_read_mostly_enable_logon                      
_lm_big_cluster_optimizations                  
_ges_lmd_mapping                               
_ges_hash_groups                               
_ges_default_lmds                              
_ges_nres_divide                               
_lm_drmopt12                                   
_lm_adrm_options                               
_lm_adrm_scan_timeout                                 
_lm_adrm_interval                              
_lm_adrm_time_out                              
_lm_resend_open_convert_timeout         
_lm_process_lock_q_scan_limit                  
_ges_gather_res_reuse_stats                           
_ges_freeable_res_chunk_free                   
_lm_share_lock_restype                                
_ges_freeable_res_chunk_free_interval                 
_ges_dump_open_locks                                  
_lm_exadata_fence_type                                
_rond_test_mode                                
_adg_distributed_lockmaster                           
_kjdd_call_stack_dump_enabled                  
_kjdd_wfg_dump_cntrl                                  
_omni_enqueue_enable                                  
_lm_idle_connection_kill_max_skips                    
_lm_idle_connection_quorum_threshold           
_lm_msg_pool_dump_threshold                           
_lm_msg_pool_user_callstack_dump               
_lm_idle_connection_max_ignore_kill_count      
_lm_mp_avail_queue_threshold                          
_lm_mp_bulk_mbuf_free                                 
_lm_wait_pending_send_queue                           
_lm_hashtable_bkt_low                                 
_lm_hashtable_bkt_high                                
_lm_hashtable_bkt_thr                                 
_lm_comm_tkts_adaptive                                
_lm_comm_tkts_calc_period_length               
_lm_comm_tkts_max_periods                      
_lm_comm_tkts_min_increase_wait                
_lm_comm_tkts_min_decrease_wait                
_lm_comm_tkts_nullreq_threshold                
_lm_comm_tkts_mult_factor                      
_lm_comm_tkts_sub_factor                       
_lm_comm_tkts_max_add                          
_exafusion_enabled                             
_lm_comm_channel                               
_lm_comm_msgq_busywait                         
_lm_comm_reap_count                            
_lm_gl_hash_scheme                             
_cluster_flash_cache_slave_file   
_gcs_res_hash_buckets                          
_gcs_reserved_resources                 
_gcs_min_slaves                                
_gcs_dynamic_slaves                            
_gcs_reserved_shadows                          
_broadcast_scn_mode                            
_nameservice_consistency_check          
_nameservice_request_batching           
_cgs_ticket_sendback                           
_cgs_msg_batch_size                            
_cgs_msg_batching                              
_cgs_comm_readiness_check                      
_imr_rr_holder_kill_time                       
_imr_check_css_incarnation_number 
_cgs_memberkill_from_rim_instance 
_cgs_os_level_connection_check          
_cgs_os_level_connection_reqno          
_cgs_big_group_enabled                         
_cgs_support_rim_disc                          
_lm_rm_slaves                                  
_lm_timed_statistics_level              
_shutdown_sync_enable                          
_crs_2phase                                    
_ges_vbfreelists                               
_lm_hb_enable_acl_check                 
_lm_hb_acceptable_hang_condition  
_lm_hb_maximum_hang_report_count  
_lm_hb_exponential_hang_time_factor     
_gcr_enable_high_memory_kill            
_gcr_high_memory_threshold              
_gcr_cpu_min_free                              
_gcr_mem_min_free                              
_gcr_css_use_2group_lock                
_gcr_css_group_try_lock_delay           
_gcr_css_group_query_boost              
_gcr_css_group_update_interval          
_gcr_css_group_update2_interval   
_gcr_css_group_large                           
_gcr_tick                                      
_gcr_enable_statistical_cpu_check 
_gcr_enable_new_drm_check               
_gcr_max_rt_procs                              
_kjac_force_outcome_current_session     
_ka_enabled                                    
_ka_mode                                       
_ka_locks_per_sector                           
_ka_msg_reap_count                             
_ka_compatibility_requirement           
_ka_allow_reenable                             
_ka_pbatch_messages                            
_ka_doorbell                                   
_ka_scn_enabled                                
_ka_scn_accel_shrmem                           
_ka_scn_use_ka_msgs                            
_ka_grant_policy                               
_ka_msg_wait_count                             
_ka_max_wait_delay                             
_gcs_cluster_flash_cache_mode           
_gcs_flash_cache_mode                          
_max_defer_gran_xfer_atonce                    
_asm_allow_small_memory_target          
_controlfile_split_brain_check          
db_big_table_cache_percent_target 
_db_full_db_cache_diff_pct              
_db_writer_coalesce_encrypted_buffers   
_dbwr_stall_write_detection_interval    
_pin_time_statistics                                  
_adg_buffer_wait_timeout                       
_db_full_caching                               
_db_flash_cache_disable_write_batchsize 
_switch_current_scan_scn                       
_cleanout_shrcur_buffers                       
_child_read_ahead_dba_check                           
_data_warehousing_scan_buffers                 
_data_warehousing_scan_flash_buffers    
_data_warehousing_serial_scan                  
_db_dw_scan_obj_cooling_policy                 
_db_dw_scan_obj_cooling_interval        
_db_dw_scan_obj_cooling_factor                 
_db_dw_scan_obj_warming_increment       
_db_dw_scan_adaptive_cooling                   
_db_dw_scan_max_shadow_count                   
_pq_numa_working_set_affinity                  
_db_cache_advice_hash_latch_multiple    
_redo_log_record_life                                 
_redo_log_debug_config                                
_redo_log_check_backup                                
_cache_orl_during_open                                
_target_log_write_size                                
_target_log_write_size_timeout                 
_use_single_log_writer                                
_max_outstanding_log_writes                           
_adaptive_scalable_log_writer_enable_worker_threshold 
_adaptive_scalable_log_writer_disable_worker_threshold      
_adaptive_scalable_log_writer_sampling_count          
_adaptive_scalable_log_writer_sampling_time           
_adaptive_scalable_log_writer_enable_worker_aging     
_max_log_write_parallelism                     
_max_log_write_io_parallelism                  
_serial_log_write_worker_io                           
_simulated_log_write_usecs                     
_adaptive_log_file_sync_use_postwait_threshold_aging  
_adaptive_log_file_sync_sampling_count         
_adaptive_log_file_sync_sampling_time   
_check_pdbid_in_redo                                  
_ping_wait_for_log_force                       
_log_writer_worker_dlm_hearbeat_update_freq           
_hb_redo_interval                              
_disable_file_resize_logging            
_file_set_enqueue_timeout               
_file_offline_sync_timeout              
_gc_policy_rm_dirty_percent                    
_gc_dump_remote_lock                           
_gc_save_cleanout                              
_gc_temp_affinity                              
_gc_fg_spin_time                               
_gc_async_send                                        
_gc_try_to_skip_imc_flush               
_gc_msgq_buffer_size                           
_gc_msgq_buffers                               
_gc_serve_from_flash_cache              
_gc_trace_freelist_empty                
_kcbl_assert_reset_slot                 
_thread_state_change_timeout_pnp  
_allow_file_1_offline_error_1245  
_switchover_timeout                            
_fast_psby_conversion                          
_ac_enable_dscn_in_rac                         
_ac_strict_SCN_check                           
_allow_convert_to_standby               
_early_flush_delta                             
_backup_ksfq_bufmem_max                 
_backup_min_ct_unused_optim                    
_krb_trace_buffer_size                         
_catalog_foreign_restore                
_prefered_standby                              
_krbabr_trace_buffer_size               
_backup_appliance_enabled               
_ba_container_filesystem_ausize   
_ba_max_groups                                        
_ba_max_containers                             
_ba_max_seg_bytes                              
_ba_cf_trace_buffer_size                
_ba_timeouts_enabled                           
_aux_dfc_keep_time                             
_undo_tbs_slave_percent                 
_clone_one_pdb_recovery                 
_time_based_rcv_ckpt_target                           
_time_based_rcv_hdr_update_interval            
_use_pdb_parselock                             
_snapshot_recovery_enabled                     
_bct_public_dba_buffer_dynresize        
_bct_public_dba_buffer_maxsize                 
_krc_trace_buffer_size                                
_kra_trace_buffer_size                                
_kcfis_qm_prioritize_sys_plan                  
_kcfis_qm_user_plan_name                       
_kcfis_xtgran_prefetch_count                   
_nologging_sendbuf_ratio                       
_nologging_load_slotsz                                
_force_logging_in_upgrade                      
_nologging_kcnbuf_hash_buckets                 
_nologging_kcnbuf_hash_latches                 
_nologging_sdcl_append_wait                           
_nologging_txn_cmt_wait                        
_max_data_transfer_cache_size                  
_data_transfer_cache_bc_perc_x100       
_data_transfer_cache_size                      
__data_transfer_cache_size                     
_max_kcnibr_ranges                             
_log_undo_df_info                              
_cvmap_buffers                                        
_txn_control_trace_buf_size                           
_collect_tempundo_stats                        
temp_undo_enabled                              
_temp_undo_disable_adg                                
_resumable_critical_alert                      
_securefile_log_num_latches                           
_securefile_log_shared_pool_size        
_cli_cachebktalloc                             
_ilm_mem_limit                                        
_ktilmsc_exp                                   
_inmemory_check_prot_meta                      
_inmemory_private_journal_quota         
_inmemory_private_journal_sharedpool_quota     
_inmemory_private_journal_numbkts              
_inmemory_private_journal_numgran              
_inmemory_jscan                                
_inmemory_pin_hist_mode                        
_inmemory_txn_checksum                                
_inmemory_buffer_waittime                      
_inmemory_cu_timeout                                  
_inmemory_cudrop_timeout                       
_inmemory_exclto_timeout                       
_inmemory_num_hash_latches                     
_inmemory_strdlxid_timeout                     
_inmemory_incremental_repopulation                    
_inmemory_lock_for_smucreate                          
_old_extent_scheme                
_trace_temp                             
_concurrency_chosen               
_no_small_file                          
_assm_test_force_rej              
_assm_test_force_rej2                                 
_assm_test_reentrant_gsp                       
_disable_flashback_recyclebin_opt              
_enable_securefile_flashback_opt
_enable_12g_bft                         
_undotbs_stepdown_pcent           
_undotbs_regular_tables           
_minmax_spacebg_slaves                  
_min_spacebg_slaves                     
_securefiles_breakreten_retry     
_securefiles_spcutl                     
_trace_ktfs                                    
_trace_ktfs_mem                         
heat_map                                       
_enable_ilm_flush_stats           
_enable_ilm_testflush_stats             
_disable_12cbigfile                     
_enable_heatmap_internal          
_heatmap_format_1block                  
_test_hm_extent_map                     
_ilmset_stat_limit                      
_ilmflush_stat_limit                    
_heatmap_min_maxsize                    
_ilmstat_memlimit                       
_flush_ilm_stats                        
_create_stat_segment                    
_drop_stat_segment                      
_print_stat_segment                     
_print_inmem_heatmap                    
_inmemory_auto_distribute         
_inmemory_autodist_2safe          
_inmemory_distribute_timeout      
_inmemory_distribute_ondemand_timeout   
inmemory_size                                  
_inmemory_64k_percent                                 
_inmemory_min_ima_defersize                           
_inmemory_memprot                              
_trace_ktds                                    
_track_space_reuse                             
_spacereuse_track_memlimit                     
_print_inmem_srmap                             
_sage_block_checking                                  
_suppress_identifiers_on_dupkey         
_widetab_comp_enabled                                 
_force_sys_compress                            
_oltp_comp_dbg_scan                            
_cu_row_locking                                
_oltp_spill                                    
_pdb_use_sequence_cache                        
_index_max_inc_trans_pct                       
_advanced_index_compression_options                   
_advanced_index_compression_options_value      
_advanced_index_compression_trace              
db_index_compression_inheritance               
_ldr_tempseg_threshold                                
_kdli_descn_adj                                
_kdli_mts_so                                   
_kdli_ralc_length                              
_kdli_ralc_rounding                            
_kdli_space_cache_segments              
_sf_default_enabled                            
_kdlf_read_flag                                
_kdz_pcode_flags                               
_enable_columnar_cache                         
_kdz_proj_nrows                                
_kdz_pred_nrows                                
_kdzk_enable_init_trace                 
_kdzk_load_specialized_library          
_kdzk_trace_level                              
_hpk_project_cost_weighting                    
_hpk_throughput_range                          
_hpk_compression_range                         
_inmemory_analyzer_optimize_for   
_dbfs_modify_implicit_fetch                    
_ILM_FILTER_TIME                               
_ILM_FILTER_TIME_LOWER                         
 _ILM_POLICY_NAME 
 _inmemory_default_flags                 
 _inmemory_default_new                          
 inmemory_clause_default                 
 inmemory_force                                        
 inmemory_query                                        
 _inmemory_query_scan                                  
 _inmemory_scan_override                        
 _inmemory_scan_threshold_percent_noscan 
 _inmemory_small_segment_threshold              
 _inmemory_query_fetch_by_rowid                        
 _inmemory_pruning                              
 _inmemory_enable_sys                                  
 _inmemory_populate_fg                                 
 _inmemory_pga_per_server                       
 inmemory_max_populate_servers                         
 _inmemory_servers_throttle_pgalim_percent      
 inmemory_trickle_repopulate_servers_percent    
 _inmemory_populate_wait                 
 _inmemory_populate_wait_max                    
 _inmemory_imco_cycle                           
 _inmemory_enable_population_verify      
 _inmemory_log_level                            
 _inmemory_fs_verify                            
 _inmemory_force_fs                             
 _inmemory_force_fs_tbs                         
 _inmemory_force_fs_tbs_size                    
 _inmemory_fs_raise_error                
 _inmemory_fs_nodml                             
 _inmemory_fs_enable                            
 _inmemory_fs_enable_blk_lvl_inv   
 _inmemory_fs_blk_inv_blkcnt                    
 _inmemory_fs_blk_inv_blk_percent  
 _inmemory_enable_stat_alert                    
 _inmemory_imcu_align                           
 _inmemory_max_populate_retry                          
 _inmemory_imcu_target_rows                     
 _inmemory_imcu_target_bytes                           
 _inmemory_imcu_source_extents                         
 _inmemory_imcu_source_blocks                          
 _inmemory_imcu_source_minbytes                        
 _inmemory_imcu_populate_minbytes               
 _inmemory_imcu_source_analyze_bytes                   
 _inmemory_imcu_target_maxrows                         
 _inmemory_imcu_source_maxbytes                        
 _inmemory_max_queued_tasks                     
 _inmemory_repopulate_threshold_rows                   
 _inmemory_repopulate_threshold_blocks                 
 _inmemory_pct_inv_rows_invalidate_imcu                
 _inmemory_pct_inv_blocks_invalidate_imcu       
 _inmemory_repopulate_threshold_mintime_factor  
 _inmemory_repopulate_threshold_mintime                
 _inmemory_repopulate_threshold_scans                  
 _inmemory_repopulate_priority_scale_factor            
 _inmemory_repopulate_invalidate_rate_percent   
 _inmemory_repopulate_priority_threshold_row           
 _inmemory_repopulate_priority_threshold_block  
 _inmemory_repopulate_threshold_rows_percent           
 _inmemory_repopulate_threshold_blocks_percent  
 _inmemory_repopulate_disable            
 _inmemory_check_protect                 
 _inmemory_checksum                             
 _inmemory_validate_fetch                
 _inmemory_journal_row_logging           
 _inmemory_journal_check                 
 _inmemory_rows_check_interrupt          
 _inmemory_dbg_scan                             
 _inmemory_segment_populate_verify 
 _inmemory_query_check                          
 _inmemory_test_verification                    
 _inmemory_invalidate_cursors            
 _inmemory_prepopulate_fg                
 _inmemory_prepopulate                          
 _inmemory_trickle_repopulate                          
 _inmemory_trickle_repopulate_threshold_dirty_ratio    
 _inmemory_trickle_repopulate_min_interval             
 _inmemory_trickle_repopulate_fg         
 _inmemory_force_non_engineered                 
 _inmemory_suppress_vsga_ima                           
 _index_load_buf_oltp_sacrifice_pct             
 _index_load_buf_oltp_under_pct                 
 _kdizoltp_uncompsentinal_freq                  
 _kqdsn_min_instance_bits                       
 _kqdsn_max_instance_bits                       
 _kqdsn_partition_ratio                                
 _kgl_large_heap_assert_threshold        
 _revoke_new_semantics                                 
 _tsenc_obfuscate_key                                  
 _db_discard_lost_masterkey                     
 _db_generate_dummy_masterkey                   
 _use_fips_mode                                        
 DBFIPS_140                                     
 _pbkdf2_sder_count                             
 _resource_includes_unlimited_tablespace 
 _xs_cleanup_task                               
 _xds_max_child_cursors                                
 _xs_dispatcher_only                            
 _unified_audit_policy_disabled                 
 unified_audit_sga_queue_size                   
 _unified_audit_flush_threshold                 
 _unified_audit_flush_interval                  
 _reco_sessions_max_percentage                  
 _disable_duplicate_service_warning             
 _dispatcher_listen_on_vip                      
 use_dedicated_broker                                  
 _mpmt_fg_enabled                               
 connection_brokers                             
 _cursor_reload_failure_threshold        
 _kks_obsolete_dump_threshold                   
 _plsql_icd_arg_dump                            
 _redef_on_statement                            
 _AllowMultInsteadofDDLTrigger                  
 _kktAllowInsteadOfDDLTriggeronDDL       
 _lock_next_constraint_count                           
 _max_string_size_bypass                        
 _bigdata_external_table                        
 _kxscio_cap_stacks                             
 _px_proactive_slave_alloc_threshold            
 _px_load_balancing_policy                      
 _px_dp_array_size                              
 _sort_sync_min_spillsize                       
 _sort_sync_min_spill_threshold                 
 _cell_offload_expressions                      
 _cell_materialize_virtual_columns       
 _cell_materialize_all_expressions       
 _cell_offload_sys_context                      
 _gby_vector_aggregation_enabled         
 _optimizer_vector_transformation        
 _optimizer_vector_fact_dim_ratio        
 _key_vector_max_size                                  
 _key_vector_predicate_enabled                  
 _key_vector_predicate_threshold         
 _key_vector_offload                            
 _key_vector_caching                            
 _vector_operations_control                     
 _optimizer_vector_min_fact_rows         
 _vector_serialize_temp_threshold        
 _always_vector_transformation                  
 _vector_aggregation_max_size                   
 _optimizer_key_vector_aggr_factor       
 _optimizer_vector_cost_adj                     
 _crash_domain_on_exception                     
 _odci_aggregate_save_space                     
 _cell_storidx_minmax_enabled                   
 _cell_offload_complex_processing        
 _optimizer_partial_join_eval                   
 _optimizer_unnest_scalar_sq                           
 _px_object_sampling                            
 _utlmmig_table_stats_gathering                 
 _remove_exf_component                                 
 _bloom_filter_size                             
 _bloom_predicate_offload                       
 _bloom_rm_filter                               
 _dbop_enabled                                  
 _optimizer_ansi_join_lateral_enhance    
 _optimizer_multi_table_outerjoin        
 _optimizer_null_accepting_semijoin             
 _optimizer_ansi_rearchitecture                 
 _optimizer_aggr_groupby_elim                   
 _optimizer_gather_feedback                     
 _part_redef_global_index_update         
 _optimizer_generate_transitive_pred            
 _optimizer_cube_join_enabled                   
 max_string_size                                
 _dm_enable_legacy_dmf_output_types             
 _dm_dmf_details_compatibility                  
 _optimizer_hybrid_fpwj_enabled                 
 _px_message_compression                        
 _px_object_sampling_enabled                           
 _px_concurrent                                        
 _px_back_to_parallel                                  
 _scalar_type_lob_storage_threshold             
 _px_replication_enabled                        
 _zonemap_use_enabled                                  
 _zonemap_staleness_tracking                           
 _zonemap_control                               
 _sql_plan_directive_mgmt_control        
 _px_filter_parallelized                        
 _px_filter_skew_handling                       
 _px_groupby_pushdown                                  
 _partition_advisor_srs_active                  
 _px_parallelize_expression                     
 _fast_index_maintenance                        
 _optimizer_gather_stats_on_load         
 _multi_transaction_optimization_enable
 _optimizer_batch_table_access_by_rowid
 optimizer_adaptive_reporting_only       
 _optimizer_ads_result_cache_life        
 _px_wif_dfo_declumping                                
 _px_wif_extend_distribution_keys        
 _px_wif_min_ndv_per_slave                      
 _px_join_skew_handling                                
 _px_join_skew_ratio                            
 _px_join_skew_minfreq                                 
 _px_adaptive_dist_method                       
 _px_adaptive_dist_method_threshold             
 _parallel_fault_tolerance_enabled       
 _parallel_fault_tolerance_threshold            
 _px_partial_rollup_pushdown                           
 _sql_diag_repo_retain                                 
 _sql_diag_repo_origin                                 
 _optimizer_dsdir_usage_control                 
 _px_cpu_autodop_enabled                        
 parallel_degree_level                                
 _px_cpu_process_bandwidth                      
 _px_cpu_operator_bandwidth                     
 _px_single_server_enabled                      
 _optimizer_use_gtt_session_stats        
 _optimizer_adaptive_plans                      
 _optimizer_adaptive_plan_control        
 _optimizer_adaptive_random_seed         
 _optimizer_strans_adaptive_pruning             
 _optimizer_proc_rate_level                     
 _px_hybrid_TSM_HWMB_load                       
 _optimizer_use_histograms                      
 _disable_directory_link_check                  
 _add_nullable_column_with_default_optim 
 _emx_max_sessions                              
 _emx_session_timeout                                  
 _emx_control                                   
 _parallel_blackbox_sga                                
 _rowsets_enabled                               
 _rowsets_target_maxsize                        
 _rowsets_max_rows                              
 _use_hidden_partitions                                
 _px_load_monitor_threshold                     
 _px_monitor_load                               
 _px_adaptive_offload_percentage         
 _modify_column_index_unusable                  
 _adaptive_window_consolidator_enabled   
 _sql_hvshare_threshold                                
 _px_tq_rowhvs                                  
 _sql_hvshare_debug                             
 _sql_show_expreval                             
 _parallel_ctas_enabled                                
 _optimizer_performance_feedback         
 _optimizer_proc_rate_source                           
 _hashops_prefetch_size                                
 _stat_aggs_one_pass_algorithm                  
 _px_onepass_slave_acquisition                  
 _online_ctas_diag                              
 _upddel_dba_hash_mask_bits                     
 _px_pwmr_enabled                               
 _px_cdb_view_enabled                                  
 optimizer_adaptive_features                           
 _partition_cdb_view_enabled                           
 _common_data_view_enabled                      
 _pred_push_cdb_view_enabled                           
 _rowsets_cdb_view_enabled                      
 _distinct_agg_optimization_gsets        
 _array_cdb_view_enabled                        
 _mv_refresh_truncate_log                       
 _rc_sys_obj_enabled                            
 _px_scalable_invdist                                  
 _indexable_con_id                              
 _optimizer_reduce_groupby_key                  
 _optimizer_cluster_by_rowid_batched            
 _optimizer_cluster_by_rowid_batch_size  
 _object_link_fixed_enabled                     
 _optimizer_synopsis_min_size                   
 _merge_monitor_threshold                       
 optimizer_inmemory_aware                       
 _optimizer_inmemory_table_expansion            
 _optimizer_inmemory_gen_pushable_preds  
 _optimizer_inmemory_autodop                           
 _optimizer_inmemory_access_path         
 _optimizer_inmemory_quotient                   
 _optimizer_inmemory_pruning_ratio_rows  
 _parallel_inmemory_min_time_threshold   
 _parallel_inmemory_time_unit                   
 _px_external_table_default_stats        
 _optimizer_nlj_hj_adaptive_join         
 _px_autodop_pq_overhead                        
 _px_overhead_init_slavealloc                   
 _px_overhead_init_endpoints                           
 _px_overhead_exec_ctrlmesg                     
 _px_overhead_teardown                                 
 _grant_read_instead_of_select                  
 _optimizer_inmemory_bloom_filter        
 _optimizer_inmemory_cluster_aware_dop   
 _cdb_cross_container                                  
 _cdb_view_parallel_degree                      
 _optimizer_hll_entry                                  
 _cross_con_row_count                                  
 _cdb_view_prefetch_batch_size                  
 _cdb_view_rc_shelflife                                
 _approx_cnt_distinct_gby_pushdown       
 _approx_cnt_distinct_optimization       
 _px_cdb_view_join_enabled                      
 _external_table_smart_scan                     
 _optimizer_inmemory_minmax_pruning             
 _query_execution_time_limit                           
 _optimizer_ads_use_partial_results             
 _alter_upgrade_signature_only                  
 _max_clients_per_emon                                 
 _emon_pool_inc                                        
 _emon_pool_min                                        
 _emon_pool_max                                        
 _aq_streaming_threshold                        
 _re_fast_sql_operator                                 
 _re_result_cache_keysiz                        
 _re_result_cache_size                                 
 _re_independent_expression_cache_size   
 _enable_iee_stats                              
 _re_num_complex_operator                       
 _re_num_rowcache_load                                 
 _aqsharded_cache_limit                                
 _aq_Txn_ht_sz                                  
 _aq_shard_bitmap_child_latches                 
 _aq_shard_retry_child_latches                  
 _aq_shard_txn_child_latches                           
 _aq_shard_sub_child_latches                           
 _aq_shard_sub_child_Elem_latches        
 _aq_shard_child_latches                        
 _aq_shard_prty_latches                                
 _aq_init_shards                                
 _aq_disable_x                                  
 _aq_latency_relative_threshold                 
 _aq_latency_absolute_threshold                 
 _aq_x_msg_size                                        
 _aq_stop_backgrounds                                  
 _aq_lb_cycle                                   
 _aq_lb_stats_collect_cycle                     
 _aq_pt_processes                               
 _aq_subshard_Size                              
 _aq_subshards_per_qpartition                   
 _aq_subshards_per_dqpartition                  
 _aq_lookback_size                              
 _aq_qt_prefetch_Size                                  
 _aq_dq_prefetch_Siz                            
 _aq_pt_statistics_window                       
 _aq_pt_shrink_frequency                        
 _aq_addpt_batch_size                                  
 _aq_truncpt_batch_size                                
 _aq_droppt_batch_size                                 
 _shrd_que_tm_processes                                
 _shrd_que_tm_statistics_duration        
 _aq_ipc_max_slave                              
 _ctx_doc_policy_stems                                 
 _olap_row_load_time_precision                  
 _olap_disable_loop_optimized                   
 _remote_asm                                    
 _asm_relocation_trace                                 
 _asm_relocation_ignore_hard_failure            
 _asm_max_parallelios                                  
 _kffmlk_hash_size                              
 _asm_diskgroups2                               
 _asm_diskgroups3                               
 _asm_diskgroups4                               
 _asm_disable_dangerous_failgroup_checking      
 _asm_diskerr_traces                     
 _asm_procs_trace_diskerr          
 _asm_trace_limit_timeout          
 _asm_skip_dbfile_ios                    
 _asm_offload_all                        
 _asm_read_cancel                        
 _asm_read_cancel_back_out
 _asm_write_cancel                       
 _afd_disable_fence                      
 _asm_network_timeout                    
 _asm_skip_diskval_check           
 _asm_remote_client_timeout        
 _asm_allow_unsafe_reconnect             
 _asm_disable_ufgmemberkill                     
 _asm_nodekill_escalate_time                           
 _asm_healthcheck_timeout                       
 _asm_resyncCkpt                                
 _asm_noevenread_diskgroups                     
 _asm_networks                                  
 _asm_allowdegeneratemounts                     
 _asm_proxy_startwait                                  
 _asm_allow_dangerous_unprotected_volumes
 _asm_appliance_ignore_oak                      
 _dirty_appliance_mode                                 
 _asm_appliance_slot_from_path                  
 _asm_scrub_limit                               
 _asm_scrub_unmatched_dba                       
 _asm_enable_xrov                               
 _asm_xrov_single                               
 _asm_xrov_rsnmod                               
 _asm_xrov_nvios                                
 _asm_xrov_nstats                               
 _skip_acfs_checks                              
 _asm_force_vam                                        
 _usd_recent_read                               
 _usd_preload_blks                              
 _remote_awr_enabled                            
 _awr_disabled_purge_tables                     
 _awr_snapshot_level                            
 _awr_remote_target_dblink                      
 _awr_pdb_registration_enabled                  
 _awr_cdbperf_threshold                                
 _awr_partition_interval                        
 _kewm_simulate_oer4031                                
 _enable_metrics_allpdb                                
 _enable_metrics_pdb                            
 _autotask_test_name                            
 _max_queued_report_requests                           
 _report_capture_cycle_time                     
 _report_capture_dbtime_percent_cutoff   
 _report_capture_timeband_length         
 _report_capture_recharge_window         
 _max_report_flushes_percycle                   
 _report_request_ageout_minutes                 
 _kecap_cache_size                              
 _rtaddm_trigger_enabled                        
 _rtaddm_trigger_args                                  
 spatial_vector_acceleration                           
 _diag_adr_trace_dest                                  
 _diag_patch_cap_enabled                        
 _log_segment_dump_parameter                           
 _log_segment_dump_patch                        
 _max_incident_file_size                        
 _uts_trace_segment_size                        
 _uts_trace_segments                            
 _uts_first_segment_size                        
 _uts_first_segment_retain               
 _uts_trace_disk_threshold               
 _diag_test_seg_reinc_mode               
 _kxdbio_ctx_init_count                         
 _kxdbio_disable_offload_opcode          
 _kxdbio_enable_ds_opcode                
 _enable_offloaded_writes                
 _block_level_offload_high_lat_thresh
 _kxdbio_hca_loadavg_thresh              
 _kxdbio_ut_ctl                                        
 _cell_offload_backup_compression  
 _enable_pluggable_database              
 enable_pluggable_database               
 _oracle_script                                        
 _discard_cmn_ddl_in_pdb_err                    
 pdb_os_credential                              
 pdb_lockdown                                   
 pdb_file_name_convert                          
 _pluggable_database_debug               
 noncdb_compatible                              
 _cdb_compatible                                
 _deferred_seg_in_seed                          
 common_user_prefix                             
 _common_user_prefix                            
 _relocate_pdb                                  
 _cdb_rac_affinity                              
 _set_container_service                         
 _multiple_char_set_cdb                         
 _cdb_spfile_inherit                            
 _enable_pdb_close_abort                 
 _max_pdbs                                      
 _pdb_cluster_database                          
 _pdb_mask_cdb_info                             
 exclude_seed_cdb_view                          
 _disable_cdb_view_rc_invalidation 
 _gsm                                           
 _gsm_region_list                               
 _cloud_name                                    
 _dbpool_name                                   
 _region_name                                   
 _db_num_gsm                                    
 _gsm_config_vers                               
 _gsm_max_instances_per_db               
 _gsm_max_num_regions                           
 _gsm_drv_interval                              
 _gsm_srlat_thresh                              
 _gsm_cpu_thresh                                
 _gsm_thresh_zone                               
 _gsm_thresh_respct                             
 _gwm_spare1                                    
 _gwm_spare2                                    
 _gwm_spare3                                    
 _rq_shm_max_size                               

1106 rows selected.

E ae, já decorou todos :)

 


Flávio Soares é um Oracle DBA Sênior, Exadata DMA, Troubleshooter e Consultor Oracle, certificado em OCP/OCE RAC. Especialista em Exadata, alta disponibilidade e replicação de dados com soluções Oracle. Flávio disponibiliza frequentes informações para a comunidade Oracle através do seu blog http://flaviosoares.com/pt

Joel Pérez é um DBA (Oracle ACE Director, Maximum Availability OCM, OCM Cloud Admin. & OCM12c/11g) Especialista com mais de 16 anos de experiência real no mundo da tecnologia Oracle, especializada na concepção e implementação de soluções: Nuvem, alta disponibilidade, recuperação de desastres, Upgrades, replicação e toda a área relacionada com bancos de dados Oracle. Joel serve como "Chief Technologist & MAA, TEM Architect" para www.Enmotech.com Yunhe ENMO (Beijing) Technology Co. Ltd. Beijing, China. OCM Perfil Joel Perez: http://education.oracle.com/education/otn/JoelPerez.htm

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