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Asked: 2026-06-03T22:02:46+00:00

I have an application which uses four databases in different geographical locations. All the

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I have an application which uses four databases in different geographical locations. All the databases contains same tables and only the database name is different according to the location.
I have to create some reports in my application which uses data from each database. What would be the proper way to create those database connection from a java application and is there a suitable design pattern for this task which I could use?

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  1. Editorial Team

    As you have not tagged your question with any of this, hibernate, JPA, ORM, I assume you are dealing with plain JDBC.

    Having said that, I suggest you to have a DAO layer to deal with underlying databases, and leave the connection details to specific implementations. You can configure your connection strings in some .properties files, lets say.

    [Complement]

    You can also make use of DAO factory, an implementation of Abstract Factory or Factory Method pattern, whichever suits here.

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