I want to ask If I want to add new column (time column) in report but I haven’t any permission to alter the creation table I need another method . Maybe we can separate the time from date time column or it’s impossible .

And I want to make the time count hourly not in second please .

This is the table which I have :

CodePudding user response：

Apply TO_CHAR function to DATETIME column with desired format mask, e.g.

select datetime,
       to_char(datetime, 'hh24:mi') only_time,      --> this
       clientchannel, ...
from your_table

Presuming, of course, that DATETIME column's datatype is DATE. If not (which would be a shame and an error), you'd use SUBSTR, e.g.

select substr(datetime, instr(datetime, ' ')   1) only_time
from ...

[EDIT] As you commented that you decided to store date value as a string (bad choice, once again) and that code I posted doesn't work, here's a demo which shows that it does:

SQL> create table temp (datetime varchar2(20));

Table created.

SQL> insert into temp values ('13_02_2022 9:35');

1 row created.

SQL> select substr(datetime, instr(datetime, ' ')   1) only_time
  2  from temp;

ONLY_TIME
--------------------------------------------------------------------------------
9:35

SQL>

CodePudding user response：

select substr(datetime, instr(datetime, ' ') 1) only_time 2 from temp;

ONLY_TIME

9:35