Query with ts in date type column

Question

select *
FROM WLTUSER.EVALSFO EVALSFO
WHERE (EVALSFO.EVS_RUNSTART>={ts '2006-08-01 00:00:00'})
Can any body tell me what ts stand for. Ihave never seen such compare in date field
FYI
EVS_RUNSTART is date field

Answer 1

I guess DB Version shouldnt be the problem. I'm getting error when i run in sqlplus
dev@db> select {ts '2006-08-01 00:00:00'} from dual;
select {ts '2006-08-01 00:00:00'} from dual
ERROR at line 1:
ORA-00911: invalid characterBut i'm able to get output when i run in Oracle sql developer
This works in sqlplus
dev@db> select timestamp '2006-08-01 00:00:00' from dual;
TIMESTAMP'2006-08-0100:00:00'
01-AUG-06 12.00.00.000000000 AMMessage was edited by:
Sundar M