Interval Literal in PLSQL Parameter

Question

Are there special requirements with Interval Literal in PLSQL?
I have a procedure accepting interval parameters:
SQL> CREATE OR REPLACE PROCEDURE inttest( p_int INTERVAL DAY TO SECOND)
2 IS
3 v_ts TIMESTAMP;
4
5 BEGIN
6 v_ts:=SYSTIMESTAMP+p_int;
7 DBMS_OUTPUT.PUT_LINE(TO_CHAR(v_ts,'HH24:MI:SS.FF3'));
8 END;
9 /
Procedure created.
But it seems that interval literals must use DAY TO SECOND syntax even if my precision requirement is just MINUTE TO SECOND.
SQL> exec inttest(INTERVAL '0 00:23:12.111' DAY TO SECOND);
14:00:39.652
PL/SQL procedure successfully completed.
SQL> exec inttest(INTERVAL '03:12' MINUTE TO SECOND);
BEGIN inttest(INTERVAL '03:12' MINUTE TO SECOND); END;
ERROR at line 1:
ORA-06550: line 1, column 15:
PLS-00167: keyword BULK is used in a wrong context
However, SQL does support the MINUTE TO SECOND syntax for Interval literal:
SQL> SELECT INTERVAL '03:12' MINUTE TO SECOND+ SYSTIMESTAMP FROM DUAL;
INTERVAL'03:12'MINUTETOSECOND+SYSTIMESTAMP
09-MAY-06 01.43.35.144000000 PM +08:00
SQL> select version from v$instance;
VERSION
9.2.0.1.0
Would that be a bug in 9.2.0.1.0?

Answer 1

Hi
It could be written like this also:
SQL> create or replace procedure intset(vt in varchar2,v in varchar2) as
  2  v_ts  timestamp(3);
  3  begin
  4  execute immediate
  5  'select systimestamp+interval '''||vt||''''||' '||v||' to second from dual'
  6  into v_ts;
  7  DBMS_OUTPUT.PUT_LINE(to_char(v_ts,'hh24:mi:ssxff'));
  8  end;
  9  /
Procedure created.
SQL> exec intset('0 00:23:12.111' ,'day');
12:49:06.111000000
PL/SQL procedure successfully completed.
SQL> exec intset('3:12' ,'minute');
12:29:14.000000000
PL/SQL procedure successfully completed.
SQL> exec intset('5:25:30','hour');
17:54:14.000000000
PL/SQL procedure successfully completed.