DATEDIFF function in Oracle

Question

I need to use Oracle but DATEDIFF function doesn\'t work in Oracle DB.

How to write the following code in Oracle? I saw some examples using INTERVAL or TRUNC.

Answer 1

We can directly subtract dates to get difference in Days.

    SET SERVEROUTPUT ON ;
    DECLARE
        V_VAR NUMBER;
    BEGIN
         V_VAR:=TO_DATE('2000-01-02', 'YYYY-MM-DD') - TO_DATE('2000-01-01', 'YYYY-MM-DD') ;
         DBMS_OUTPUT.PUT_LINE(V_VAR);
    END;