Oracle-L: RE: Migrating from MS Access to oracle

From: Pardee, Roy E <roy.e.pardee_at_lmco.com>
Date: Wed, 09 Apr 2003 10:33:52 -0800
Message-ID: <F001.0057E2BC.20030409103352@fatcity.com>

I've never used it, but oracle has a Migration Workbench product that is supposed to do such things. See

<http://otn.oracle.com/tech/migration/focusareas/access.html>

If you can't use that for whatever reason, the advice below sounds good to me. If you've got designer or ERWin or some such program, you may be able to reverse-engineer the access db & tweak the definitions there (e.g., take spaces out of column names, impose your naming conventions, etc.) before spitting out DDL scripts to create your staging tables.

HTH,
-Roy

Roy Pardee
Programmer/Analyst
SWFPAC Lockheed Martin IT
Extension 8487

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

Sent: Wednesday, April 09, 2003 8:29 AM
To: Multiple recipients of list ORACLE-L

Sam - I haven't done this, tried to stay away from Access. What I've seen posted from those who have, create equivalent tables in Oracle to match the Access tables, then use Access to connect to these tables. Then you can simply copy records from the Access tables into the Oracle tables. Access can create the tables in Oracle, but that isn't a good idea because Access will tend to use goofy data types like LONG. My suggestion would be to use this method to get the data into some temporary tables in Oracle, then move the data around into your permanent tables using SQL. Maybe someone with Access experience will post better ideas.

Dennis Williams
DBA, 40%OCP, 100% DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

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

Sent: Wednesday, April 09, 2003 12:34 AM To: Multiple recipients of list ORACLE-L

Hi List,
I would like your views on migrating from Microsoft Access to Oracle8i.
Folloing is one of the scenarios that we might come across.
There are columns in table need to insert as a row. e.g. Access Table1 has column col1,col2,col3 we need to insert those col1 as row1 ,col2 as row2 of Oracle table.
1.Can this be done using sql loader ?
2.What are the typical limitations u experienced of sql loader ?
3.What are other ways to migrate (i.e. other than sql loader)and also validate migrated data.

I will appreciate any comments and views.

Platform:Oracle8i,MS Access 2000
O.S.:Win2000.

Thanks
Sam

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Author: sam d
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Author: DENNIS WILLIAMS
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