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When you're using the Apache Derby database, a table is always in a schema. If you don't specify a schema explicitly, Derby implicitly uses the built-in apps schema. A second built-in schema called sys which is used to isolate system tables. If you specify a user name A when creating the database, thinking about the scenario you are deploying a datasource and set the create database parameter as true, then you create a table T, the fully qualified name of the table T will be A.T.

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