I need the syntax for a Oracle Database link that offers the best security if a user needs to link to our database. We would like to be able to control the passwords and the user of the link shouldn't know the passwords of the link or be able to get into our remote system if they ever got into our building and had access to our PC's
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…
This post first appeared at Oracleinaction (http://oracleinaction.com/undo-and-redo-in-oracle/)by Anju Garg (Myself).
I will demonstrate that undo for DML’s is stored both in undo tablespace and online redo logs. Then, we will analyze the reaso…
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.
This video shows setup options and the basic steps and syntax for duplicating (cloning) a database from one instance to another. Examples are given for duplicating to the same machine and to different machines