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- MIGRATE ADDENDUM
-
- ADDITIONAL INSTRUCTIONS FOR MIGRATING INDEXES TO VERSION 6.0
- ------------------------------------------------------------
-
- The instructions for migrating data from Version 5.1 to Version
- 6.0 explain that the Version 6.0 import program will
- automatically perform all conversion to Version 6.0 structures
- for all Version 5.1 objects including indexes. However, Version
- 6.0 import will convert all indexes using a default space
- definition in the Version 6.0 database. The Version 6.0 default
- space definitions used may not be desirable for all Version 5.1
- indexes. When migrating indexes to Version 6.0 database
- administrators may wish to follow these additional procedures to
- ensure that indexes are migrated efficiently.
-
- 1) Estimate the amount of storage required for storing all
- indexes which are to be migrated to Version 6.0. The calculation
- for this is : (index key size * number of rows * 110%)
-
- 2) Determine which tablespace will hold each of the indexes to be
- migrated to the Version 6.0 database. Administrators may wish to
- allocate the indexes in tablespaces other than the default
- tablespace in order to improve index performance.
-
- 3) Migrate all Version 5.1 data except indexes to Version 6.0
- by importing with the import keyword INDEXES=N.
-
- 4) Manually create each of the indexes in the Version 6.0
- database using the storage parameters determined in step 1 above.
-
- If you have any questions or additional problems during your
- upgrade please contact ORACLE Support.
-