How to Unravel a Tricky Query
If you browse through the Oracle zones or any of the other database-related zones you'll come across some complicated solutions and sometimes you'll just have to wonder how anyone came up with them. …
Using SQL Scripts we can save all the SQL queries as files that we use very frequently on our database later point of time. This is one of the feature present under SQL Workshop in Oracle Application Express.
This video shows how to copy a database user from one database to another user DBMS_METADATA. It also shows how to copy a user's permissions and discusses password hash differences between Oracle 10g and 11g.