Question

I am developing an asp.net application ,, currently i’m using Sql Server 2008 as backend.
However i have been asked to develop one application with multiple databases (oracle,sql server,mysql etc). Is it possible to achieve this.Is it a feasible solution.What may be the possible disadvantages associated with it.
Thanks

Answer 1

Yes, it’s feasible. You’ll need a connection string for each database type (and catalog) in your web.config and you may need to install different drivers on your server (like the ODBC driver).

The only disadvantage I can think of off the top of my head is you won’t be able to easily join tables between databases. If you ever have to do that, you’ll need to select from the individual database tables and either:

1. loop through the tables in your code-behind and manually process the data like a join would.
2. or insert the selected tables into a temporary table on one of the databases and then use that server to do the join .