RE: How to refresh

From: Bobak, Mark <Mark.Bobak_at_il.proquest.com>
Date: Tue, 16 Dec 2003 07:14:38 -0800
Message-ID: <F001.005DA16C.20031216071438@fatcity.com>

Ron,

Of course, your milage may vary, but this is what I do:

1.)  exp userid=system_at_prod_db file=prod_data_exp.dmp owner=list,of,comma,separated,schemas direct=y
2.)  connect to test_db.
3.)  Disable all constraints.  When you script this, make sure you order it so that referential constraints

get disabled before PK/UK.
4.) truncate all tables.
5.) imp userid=system_at_test_db file=prod_data_exp.dmp direct=y full=y ignore=y

(Optionally, you could use fromuser/touser if the usernames change between instances.)

Hope that helps,

-Mark

-----Original Message-----

Sent: Tuesday, December 16, 2003 9:55 AM To: Multiple recipients of list ORACLE-L

I need to do a refresh of a test database using production data. We use import for this. In the past we have always dropped the schemas (4 or 5), recreated the schemas, and then did a full import with ignore=n. This time the user does not want to lose any of the new functions and procedures that are in test, but not in prod. Instead, they would like to just refresh the table data. Last time we tried this we had all kinds of trouble with functions, triggers, constraints, etc... and ended up doing a full import.

Is there a tried and true way to just refresh the table data without losing anything else and without having all the problems with triggers and constraints?

Thanks!
Ron

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Author: Smith, Ron L.
INET: rlsmith_at_kmg.com

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Author: Bobak, Mark
INET: Mark.Bobak_at_il.proquest.com

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