orcl case when

CASE WHEN is a conditional expression in Oracle SQL that allows you to perform conditional logic within a query. It is used to evaluate a condition and return a specific value or perform certain actions based on the result.

Here's an example of how you can use CASE WHEN in Oracle SQL:

SELECT column_name,
       CASE 
           WHEN condition1 THEN result1
           WHEN condition2 THEN result2
           ELSE result3
       END AS alias_name
FROM table_name;

In this example, you specify the column_name you want to select from the table. Then, you use CASE WHEN to define the conditions and the corresponding results. The ELSE clause is optional and is used to specify a default result if none of the conditions are met.

Please let me know if you have any further questions!