Convert Timestamp To Date In Oracle SQL


Answer :

CAST(timestamp_expression AS DATE)


For example, The query is : SELECT CAST(SYSTIMESTAMP AS DATE) FROM dual;



Try using TRUNC and TO_DATE instead



WHERE
    TRUNC(start_ts) = TO_DATE('2016-05-13', 'YYYY-MM-DD')


Alternatively, you can use >= and < instead to avoid use of function in the start_ts column:



WHERE
   start_ts >= TO_DATE('2016-05-13', 'YYYY-MM-DD')
   AND start_ts < TO_DATE('2016-05-14', 'YYYY-MM-DD')


Format like this while selecting:


to_char(systimestamp, 'DD-MON-YYYY')

Eg:


select to_char(systimestamp, 'DD-MON-YYYY') from dual;


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