STRING DATE AND TIME COMBINE AND MAKE FULL DATE TIME IN ORACLE PL/SQL

I am trying to make date and time from the oracle select query as follows.

SELECT TO_CHAR(TO_DATE(‘230201’||”||’1529’, ‘YYMMDD HH24MI’) , ‘YYYY-MM-DD HH24:MI’) FROM DUAL;

It returns the below result and it’s OK.

2023-02-01 15:29

But when I try the same query with 23 or less minutes It returns the wrong result

SELECT TO_CHAR(TO_DATE(‘230201’||”||’1523‘, ‘YYMMDD HH24MI’) , ‘YYYY-MM-DD HH24:MI’) FROM DUAL;

2302-01-15 23:00

Where is the Wrong point of my query?

>Solution :

That’s because you used wrong format model. There’s no space between date and time component:

SQL> select to_char(to_date('230201' ||''|| '1523', 'yymmddhh24mi'), 'yyyy-mm-dd hh24:mi') result
  2  from dual;                                          ----
                                                         here
RESULT
----------------
2023-02-01 15:23

SQL>