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PL/SQL is one of the core technologies at Oracle and is essential to leveraging the full potential of Oracle Database. PL/SQL combines the relational data access capabilities of the Structured Query Language with a flexible embedded procedural language, and it executes complex queries and programmatic logic run inside the database engine itself. This enhances the agility, efficiency, and performance of database-driven applications.
Steven Feuerstein, one of the industry’s best-respected and most prolific experts in PL/SQL, wrote a 12-part tutorial series on the language. Those articles, first published in 2011, have been among the most popular ever published on the Oracle website and continue to find new readers and enthusiasts in the database community. Beginning with the first installment, the entire series is being updated and republished; please enjoy!
Part 11: Wrap your code in a neat package
Part 12: Working with cursors
Steven Feuerstein is Oracle Corporation’s Developer Advocate for PL/SQL, and an expert on the Oracle PL/SQL language, having written ten books on PL/SQL, including Oracle PL/SQL Programming and Oracle PL/SQL Best Practices (all published by O’Reilly Media). Steven has been developing software since 1980, spent five years with Oracle back in the “old days” (1987-1992), and was PL/SQL Evangelist for Quest Software (and then Dell) from January 2001 to February 2014 - at which point he returned joyfully to Oracle Corporation. He was one of the original Oracle ACE Directors and wrote regularly for Oracle Magazine, which named him the PL/SQL Developer of the Year in both 2002 and 2006. He is also the first recipient of ODTUG's Lifetime Achievement Award (2009).
Illustration: Wes Rowell