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Donald K. Burleson

Oracle Tips  

Test the Oracle Migration Process

Ensure you parse out enough time to allow multiple reinstalls and migrations as needed. If you plan the time you need to the nearest second, chances are you won’t make your schedule. I’m not saying use the Scottie method (for those non-Star Trek aficionados, Scottie was the chief engineer on the Star Ship Enterprise; he would always pad his repair estimates by a factor of 3 or 4, then deliver ahead of schedule). Better to finish early than to have everyone breathing down your neck because you didn’t meet your schedule.

Again, cut a full backup or a full export of your source database. I cannot stress this point enough. At worst, having a full backup wastes some disk or tape space for a while; at best, it will save your hide from falling over the cliff with the lemmings.

Prepare the source database as completely as possible. Remove unneeded tables, views, and users. Do space management (why take problems with you?). Consolidate multiple datafiles, or, conversely, split up datafiles that are too big to perform properly. Tune your source as well as you can and have it running at tip-top performance.

This is an excerpt by Mike Ault’s book “Oracle Administration & Management”.  If you want more current Oracle tips by Mike Ault, check out his new book “Mike Ault’s Oracle Internals Monitoring & Tuning Scripts” or Ault’s Oracle Scripts Download.




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