You have to deploy a bundle fragment to Adobe CQ that contains the database driver file. In this development article, the name of the database driver file is mysql-connector-java-5.1.22-bin. To create an OSGi bundle fragment that contains this database driver file, perform these tasks:
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You need to follow that procedure and wrap the database driver file for the database you want to use. Make sure that JAR you deployed is the driver file.
And in the DataSourcePool config section - make sure you specify the correct driver file there too.