This tutorial shows you how to use Oracle CASE expressions to add if-else logic to SQL statements, making your queries more flexible.

In a simple CASE expression, Oracle Database searches for the first WHEN ... THEN pair for which expr is equal to comparison_expr and returns return_expr. If none of the WHEN ...

To gain full voting privileges, CASE .. WHEN expression in Oracle SQL. I have the table with 1 column and has following data. I want to display the following result in my select query. One …

This Oracle tutorial explains how to use the Oracle / PLSQL CASE statement with syntax and examples. The Oracle / PLSQL CASE statement has the functionality of an IF-THEN-ELSE …

Oct 17, 2024 · Here, we explore the syntax, types, and practical use cases of the PL/SQL CASE statement to make better decisions and improve your ability to use conditional logic in Oracle …

All possible values returned by a CASE expression must be of the same data type. The searched CASE expression can be more complicated, involving multiple columns in the comparisons. …

Oct 7, 2025 · In this guide, we break down how to use the SQL CASE WHEN statement with multiple conditions across platforms like MySQL, SQL Server, Oracle, and PostgreSQL. By the …

The simple CASE statement evaluates a single expression and compares it to several potential values. The searched CASE statement evaluates multiple Boolean expressions and chooses …

Jun 28, 2024 · This Tutorial explains how to use the PL/SQL case statement, including simple case & searched case with Syntax, Examples & Code Explanation for better Understanding.

We can use a CASE statement in WHERE clause as: FROM emps. WHERE (CASE WHEN :p_dept_no = 50 THEN 0 WHEN :p_dept_no = 70 THEN 0 ELSE -1 END) = 0; I'm brand-new …