Note: this article covers simple compression. Oracle introduced in version 11g release 2 a new feature called Advanced Compression which is not covered here.
General principle of Oracle compression
Oracle compression is a way of reducing the d…
Cursors in Oracle:
A cursor is used to process individual rows returned by database system for a query.
In oracle every SQL statement executed by the oracle server has a private area. This area contains information about the SQL statement and the…
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.