How to declare timestamp variable with default as current timestamp not working.

[somadritadas23]

I have a variable declaration inside a procedure which is not compiling in db2 9.5 :-
DECLARE VSTARTTIME TIMESTAMP DEFAULT CURRENT TIMESTAMP;

The procedure is a test procedure :-
DROP PROCEDURE ABC_1
@
CREATE PROCEDURE ABC_1
(
INOUT STARTTIME TIMESTAMP ,
INOUT ENDTIME TIMESTAMP ,
OUT DIFFTIME DECIMAL(15,10)
)
LANGUAGE SQL
BEGIN
DECLARE VSTARTTIME TIMESTAMP DEFAULT CURRENT TIMESTAMP;
BEGIN
SET STARTTIME = VSTARTTIME ;
VALUES CURRENT TIMESTAMP INTO ENDTIME;
VALUES ENDTIME-STARTTIME INTO DIFFTIME;
END;

END
@

COMPILATION ERROR --
SQL0104N An unexpected token "CURRENT TIMESTAMP" was found following "ME
TIMESTAMP DEFAULT". Expected tokens may include: "<literal>" . LINE
NUMBER=9. SQLSTATE=42601

Please suggest why this is not working?

[Anand Kaushal]

Cannot specify a default like that.. set the variables instead.