How can I change the source DB?

Hi all,
I have implemented an ETL with OWB where the source DB and the target DB both are Oracle.
Now I have the same source (the same structure, tables, indexes,...) DB in MSSQL. Then my question is: how can I change the connections without modifying the mappings?
I only want to change the source DB in Oracle to the same DB in MSSQL, therefore the mappings that are getting the data from Oracle then will get the data from MSSQL DB. Is it possible? or I have to create new mappings for MSSQL?
Many thanks in advance,
Victor.
p.d. hope my english is understable

Hi
To have one set of mappings that could be switched to point to one system or another would be possible using synonyms to the source, where the synonym could be refined at runtime.
You can have unbound table operators in OWB mappings that would be the name of the source item. It helps to understand a little about how the code generation works in order to do this. If you use a source table T in a schema S1, and the mappings is in schema S2, then the generated code would refer to S1.T and may even have a dblink so S1.T@dblink, an unbound table operator for table T would simply use the name T in the generated code, this lets you define T however you want in the schema where the mapping is deployed to. So T could be a synonym that points to a local Oracle table for example named S3.MYORATAB or it could be a SQLServer table referenced via the database gateway using MYSQLSERVERTAB@mysqlserverinstance
Here is a trick to quickly define an unbound table operator based on the table structure of an existing table. You can quickly create unbound table operators that look like other tables by adding an existing table which you have imported into the map, then add a new table operator and add it unbound with a name. Then map from the bound table operators in/out group to the unbound table operators in/out grp, this will define all of the attributes and datatypes, you can then delete the bound table operator to leave the unbound one.
An alternative would be to copy-paste the mappings and synchronize the source table operators with the SQLServer table definitions.
Cheers
David

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