 - In Oracle database management, PL/SQL is a procedural language extension to Structured Query Language (SQL). The
purpose of PL/SQL is to combine database language and procedural programming language. The basic
unit in PL/SQL is called a block, which is made up of three parts: a declarative part, an executable part, and an
exception-building part.
Because PL/SQL allows you to mix SQL statements with procedural constructs, it is possible to use PL/SQL blocks and
subprograms to group SQL statements before sending them to Oracle for execution. Without PL/SQL, Oracle must process
SQL statements one at a time and, in a network environment, this can affect traffic flow and slow down response time.
PL/SQL blocks can be compiled once and stored in executable form to improve response time.
A PL/SQL program that is stored in a database in compiled form and can be called by name is referred to as a stored procedure.
A PL/SQL stored procedure that is implicitly started when an INSERT, UPDATE or DELETE statement is issued against an associated table is called a trigger.
 |
Getting started with PL/SQL |
| To explore how the PL/SQL is used in the enterprise, here are some additional resources: |
| PL/SQL do's and don't's: Five questions with Steven Feuerstein: Get answers to important PL/SQL questions from a leading expert. The questions are based on his Collaborate '07 presentation titled "Ten things you should never in PL/SQL." |
| Oracle 11g: PL/SQL Basics: Want to brush up on your PL/SQL basics? This excerpt from "Oracle Database 11g PL/SQL Programming" discusses control structures, database triggers, transaction scope and more. |
| Fast Guide: PL/SQL: This comprehensive PL/SQL guide is great for both beginners and experts. Find PL/SQL tips, expert responses and resources on SearchOracle.com and from around the Web. |
| LAST UPDATED: |
03 Oct 2008
|
 |
Read more about PL/SQL:
|
|
Do you have something to add to this definition? Let us know.
Send your comments to techterms@whatis.com
|
|
