Date Comparison in Oracle

If you wanna compare (equal) two dates in Oracle, you can' t simply use the "=" operator in the query clause. Instead, you can perform a simple string comparison through the TO_CHAR function:

SELECT   dt1   , dt2FROM   src_tableWHERE TO_CHAR(dt1, 'YYYY-MM-DD')=TO_CHAR(dt2, 'YYYY-MM-DD');