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Chapter 4. Versioning
4.1. Virtual Database Versioning
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Virtual database (VDB) versioning allows you to deploy multiple versions of a VDB simultaneously, and to specify which version will be used in certain scenarios.
When an application connects to JBoss Data Virtualization, you can set the desired version of a VDB using a connection property. (Refer to the Red Hat JBoss Data Virtualization User Guide for more information.)
If a specific version is set, then you can only connect to that VDB. If no version is set, the deployed VDBs are searched until the appropriate version is found. This feature helps support more dynamic migration scenarios.
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