Have you ever had to make fundamental changes to a table in Oracle, but haven't been able to get any downtime? I'm talking things like:
* Dropping columns
* Shrinking allocated space
* Removing chained blocks and restoring the PCTFREE
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.