ORACLE IIF Statement

Question

I get an error while writing the IIF statement, table and the statement given below.

Statement:

SELECT IIF(EMP_ID=1,\'True\',\'False\') from Employee;
         


        

Answer 1

Oracle doesn't provide such IIF Function. Instead, try using one of the following alternatives:

DECODE Function:

SELECT DECODE(EMP_ID, 1, 'True', 'False') from Employee

CASE Function:

SELECT CASE WHEN EMP_ID = 1 THEN 'True' ELSE 'False' END from Employee