Hi experts
How to add totaltime, i have table t_userscoinfo ...
SQL> select totaltime
2 from t_userscoinfo where licenseid=3258 and
3 user_id='test.user1';
TOTALTIME
--------------------
01:17:49.82
05:17:56.11
00:00:45.55
1) I what to add above times?
2) the TOTALTIME column datatype is VARCAR2.
Note: the totaltime column datatye is varchar2.
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