It is important to recover your lost password on the Oracle database, as not having it would hamper your productivity and block your access to the database, resulting in security issues. To recover or ...

If you do not have date or timestamp defined in your tables, retrieve the last inserted row in the database using the "ROWNUM" command.

Using default values on database columns helps to insulate database design issues from application code. Find out how to change a column's default value at a later date using a single command.