Convert timestamp to date in Oracle SQL

Question

How can we convert timestamp to date?

The table has a field, start_ts which is of the timestamp format:

\'05/13/2016 4:58:1         


        

Answer 1

If the datatype is timestamp then the visible format is irrelevant.

You should avoid converting the data to date or use of to_char. Instead compare the timestamp data to timestamp values using TO_TIMESTAMP()

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