How to query Oracle, MySQL and MSSQL data?

For an environment with Oracle 11 g/12 c Enterprise edition, MySQL community edition and MSSQL 2008/2012 5.7 stanard/enterprise edition, is there any problem using DG4ODBC to query the data for all 3 platforms?

There are other free alternatives?

If the queried data are mainly contained in MySQL or MSSQL, it will be more efficient to query MySQL or MSSQL?

If so, any suggestion of how to do it in these platforms? I know that MSSQL can use linked server, but it is quite slow.

Hi Ed,

Ok!   I still think a bridge 'instance' as a partner to ainit .ora file but still useful to be aware how others see these things.

Your installation is that we have our test systems - multiple gateways - dg4odbc, the dg4msql, the dg4drda etc. - in an ORACLE_HOME.

Kind regards

Mike

Tags: Database

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