Extract time part from TimeStamp column in ORACLE

Question

Currently I\'m using MyTimeStampField-TRUNC(MyTimeStampField) to extract the time part from a timestamp column in Oracle.

SELECT CURRENT_TIMEST         


        

Answer 1

select TO_DATE(TO_CHAR(SYSDATE,'hh24:mi:ss'),'hh24:mi:ss') from dual

This gives the timestamp for 1hour less than the actual.

Answer 2

This may help:

Select EXTRACT(HOUR FROM (SYSDATE - trunc(sysdate)) DAY TO SECOND ) From dual;

Answer 3

select hour(CURRENT_TIMESTAMP)

Answer 4

You could always do something like:

select TO_DATE(TO_CHAR(SYSDATE,'hh24:mi:ss'),'hh24:mi:ss') from dual

I believe this will work with timestamps as well.

Answer 5

I think the method in question is shorter and faster than in both answers. Cause it involves just two math operations and no complex parsing, formatting and conversion.

Answer 6

You want just date then use

to_char(cast(SYSDATE as date),'DD-MM-YYYY')

and if you want just time then use

to_char(cast(SYSDATE as date),'hh24:mi:ss')

the parameters are making all the changed

'DD-MM-YYYY'

and

'hh24:mi:ss'