Export/Import/SQL Loader :: Oracle 9 Database Refresh From Production Server To Integration Server
Oct 13, 2012
I will have to proceed with Oracle 9 database refresh from production server to integration server. 5 biggest schemas must be exported and imported. They constitute 97% space used in a database. This is very big database so I would like to be sure that everything will go smoothly. That is why i want to ask you some questions.
Have you got any clues for me before I start with exp/imp? From my side i will tell you that I will have to exp/imp schema by schema because there is small space both on production and integration disk for a dump. First thing I thought are dependencies between schemas that are exported and that which are not, and also between schemas that are exported/imported one by one.
This is procedure that I plan:
For every schema that is to be refreshed
{
1. Export schema with ROWS=N CONSTRAINTS=Y
2. EXPORT schema with ROWS=y CONSTRAINTS=N
3. Import schema from step one
4. Disable all the foreign key constraints using ALTER TABLE DISABLE CONSTRAINT.
5. Import schema with rows
}
ALTER TABLE ENABLE CONSTRAINT
With above procedure i think that I will avoid problems with dependencies between schemas exported/imported one by one. But my concern is if there are any dependencies between those schemas and schemas that are not exported. Is there an way to check it before refresh ?
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Aug 14, 2012
I am migrating data from a Solid Database to Oracle, I am using Flat Files to do that.
1.- I download the data to flat files from Solid
2.- I move the files to Oracle server
3.- I upload the data to Oracle
Now, I have done the 90% of the data base, but I have found some tables that has description columns and in this description the users writes enters, so when I try to upload the data to Oracle SQL loader cannot recognize this characters.
Example:
'25','0.','5.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
'26','0.','2.','0.','0.','0.','0.','3.','0.','0.','0.','0.','0.','',''
'27','0.','1.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
'28','0.','1.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
'29','0.','38.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
'30','0.','13.','0.','0.','0.','0.','0.','6.','0.','6.','0.','0.','|SE RECHAZA B20CS50SNW ^M
^M
SE RECHAZAN CINCO PZAS ^M
DOS MOD. HSC15I41EH,DOS MOD. HSK15I41EH |Agregó: 06/06/2009 12:22:50
|','DEV. A PROV.'
'31','0.','50.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
'32','0.','9.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
'33','0.','2.','0.','0.','0.','0.','0.','0.','0.','0.','0.','0.','',''
How can I solve this ?
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Apr 30, 2013
Upgrading one of the 9i database to 11g that supports a 3rd party software - ***Vendor provided an over-simplified documentations*** and recommends moving from 9i to 10g before going to 11g. A few changes from 9i to 10g.
1) db_block_size
2) character sets
etc.
Anyway, created the database DBUPGTEST on 10.2.0.1 (ultimately moving to 11gR2, so no point patching to 10.2.0.5, is there?) with all the parameter changes. At this point, these are the 2 db in play:
Current production db: Oracle 9i - PROD dbname => 2048K db block size
Current migrating db to: Oracle10g - DBUPGTEST dbname => 8192k db block size
Steps
According to vendor notes / documentation,
1) create db
2) exp full from 9i
3) imp full to 10g
Problems
1) import ended with completed unsuccessful.
2) user accounts are imported (because their default tablespace is USERS - which had already been created during DB creation); but, user accounts (schema accounts) with a different default tablespace are not imported.
Looking at the imp.log - seems like it's complaining about the db_block_size during tablespace creation - which explains why the schema accounts are not imported; because the tablespace was not created.
My questions
1) How do I import to 10g? Can I create all the tablespace in 10g first? Then import? Will it crap out because it already exists? Or will it import the objects in the schema?
2) How do I refresh data from PROD? Remember this is 9i and most of the expdp functionalities are not available. And I cannot re-exp and re-imp because there are steps (sql to run) after moving to 10g to fix some software upgrade table mappings. If I re-exp from 9i and re-imp to 10g, won't I have to re-run all those steps before the apps will run?
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