CASE Statement
CASE statement gives you a clear way to handle conditional logic within PL/SQL blocks. It is a conditional control statement that allows you to execute different blocks of code based on the specified conditions. It is particularly useful when dealing with multiple conditions and provides a more readable and maintainable alternative to nested IF-ELSE statements.
Syntax:
CASE
WHEN condition_1 THEN
— code block for condition_1
WHEN condition_2 THEN
— code block for condition_2
…
ELSE
— default code block
END CASE;
PL/SQL CASE Statement
PL/SQL stands for Procedural Language Extension to the Structured Query Language and it is designed specifically for Oracle databases it extends Structured Query Language (SQL) capabilities by allowing the creation of stored procedures, functions, and triggers. It is a block-structured language that combines SQL with the procedural features of programming languages.
In this article, we explore the CASE statement in PL/SQL. It is one of the most powerful conditional logic statements in Oracle databases. We look at the syntax, and types and compare them to the CASE expression. You can use this information to make better decisions and improve your ability to use conditional logic in Oracle PL/SQL.