Oracle - Fetch date/time in milliseconds from DATE datatype field

Question

I have last_update_date column defined as DATE field

I want to get time in milliseconds.

Currently I have:

TO_CHAR         


        

Answer 1

DATE fields on Oracle only store the data down to a second so there is no way to provide anything more precise than that. If you want more precision, you must use another type such as TIMESTAMP.

Here is a link to another SO question regarding Oracle date and time precision.