My import takes days to complete..... How can I tune the import????
I have several Peoplesoft CIS tables that I need to refresh to my dev/tst/wrk environments. Some of tables have millions of records. I can't take a subset of the data because the Peoplesoft CIS applications doesn't quite use relations properly.
I export the tables.....
Mark the indexes unusable in the env to be refreshed
Truncate the tables in the env to be refreshed
Then start my import.....
This is where the problem starts... The export takes an hour and 45 min, where the import took 3 days and still didn't complete. The total size of the dump is 17,638,070 KB.
Please help, or is there a better way....
Cheryl Sewell
Sr. Oracle DBA
I export the tables......Mark the indexes unusable in the env to be refreshed
Truncate the tables in the env to be refreshed
Then start my import.....1)Import with rows=n indexes=n constraints=n
2)Import with ignore=y indexes=n constraints=y or create the indexfile for indexes and create the indexes with parallel nologging.
3)use Large buffer and commit=n
[http://www.dba-oracle.com/oracle_tips_load_speed.htm]
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Felipe.F. Munoz Alvarez wrote:
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* http://www.dbazine.com/blogs/blog-cf/chrisfoot/blogentry.2006-06-02.2786242018
* http://www.dbazine.com/blogs/blog-cf/chrisfoot/blogentry.2006-05-26.3042156388
* http://www.dbazine.com/blogs/blog-cf/chrisfoot/blogentry.2006-05-19.6918984141
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