Introduction of PL/SQL
In this article I am going to explain introduction of PL/SQL.
Introduction
PL/SQL is define as procedure language/structure query language. PL/SQL is developed by oracle. PL/SQL supports many feature like variables, loops, conditions and exceptions. It also support the concept of array. In present time PL/SQL is integrated component of oracle software. SQL provide limited support for advance programming and PL/SQL fill this gap.
PL/SQL provide some advantages
- Support for SQL
- Tight integration with Oracle
- Tight security
- Higher productivity
- Full portability
- Support for object-oriented programming
- Better performance
- Error handling
Block is a basic unit of a PL/SQL application. This block is collection of PL/SQL statements grouped as logical unit. Using PL/SQL blocks you can create five different type of program units.
- Stored Function
- Stored procedure
- Anonymous Block
- Trigger
- Package