RE: Migrating from MS Access to oracle

Be careful using Access when copying tables to Oracle Via ODBC...

Otherwise you might end up with Oracle tablenames and columns that have mixed case.

If you use then SQL*Plus everything gets converted to upper case unless in quotes...and thus cannot be found.

Ran into this once about 5 years ago...You may need to verify if it still occurs.

BRad

-----Original Message-----
Sent: Wednesday, April 09, 2003 2:54 PM
To: Multiple recipients of list ORACLE-L

Igor:

The intermediate tables most likely will not be in the same format as the application tables and the data may need to be cleansed / transformed to fit into Oracle. The intermediate tables will reflect the format of the Access / legacy DB.

Ken

• Original Message ----- To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com> Sent: Wednesday, April 09, 2003 12:13 PM

> Ken,
>
> Why would you need SQL*Loader, if data is already in oracle tables?
>
> Igor Neyman, OCP DBA
> ineyman_at_perceptron.com
>
>
>
> ----- Original Message -----
> To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> Sent: Wednesday, April 09, 2003 12:28 PM
>
>
> > Once you get the data into intermediate Oracle tables you can use
> SQL*Loader
> > to load the data into the actual Oracle tables that will be used by the
> > application. If you are going to go this route I recommend O'Reilly's
> book:
> > SQL*Loader: The Definitive Guide.
> >
> > Ken Janusz, CPIM
> >
> >
> > ----- Original Message -----
> > To: "Multiple recipients of list ORACLE-L" <ORACLE-L_at_fatcity.com>
> > Sent: Wednesday, April 09, 2003 10:28 AM
> >
> >
> > > 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: Igor Neyman
> INET: ineyman_at_perceptron.com
>
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Author: KENNETH JANUSZ
  INET: kjanusz_at_att.net

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  INET: Brad.Odland_at_qtiworld.com

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