oralce case when

Oracle's CASE WHEN statement is a conditional expression that allows you to perform different actions based on different conditions. It is used to evaluate multiple conditions and return a result based on the first condition that is met.

Here's an example of how the CASE WHEN statement is used in Oracle:

SELECT column1,
       CASE
           WHEN condition1 THEN result1
           WHEN condition2 THEN result2
           ...
           ELSE resultN
       END AS result
FROM your_table;

In this example, the CASE WHEN statement is used to determine the value of the "result" column based on different conditions. If "condition1" is met, "result1" will be returned. If not, it checks for "condition2" and returns "result2" if it is met. If none of the conditions are met, "resultN" is returned.