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SQL>
SQL> CREATE OR REPLACE FUNCTION new_add_months (
2 date_in IN DATE,
3 months_shift IN NUMBER
4 )
5 RETURN DATE
6 IS
7 retval DATE;
8 BEGIN
9 retval := ADD_MONTHS (date_in, months_shift);
10
11 IF date_in = LAST_DAY (date_in)
12 THEN
13 retval := LEAST (retval,TO_DATE (TO_CHAR (date_in, 'DD') || TO_CHAR (retval, 'MMYYYY'),'DDMMYYYY'));
14 END IF;
15
16 RETURN retval;
17 EXCEPTION
18 WHEN OTHERS
19 THEN
20 RETURN retval;
21 END new_add_months;
22 /
Function created.
SQL>
SQL> select new_add_months(sysdate, 3) from dual;
NEW_ADD_M
---------
19-SEP-08
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