As we did for data query operations, in this section, we will discuss how to perform data manipula-tions using the Java runtime object method. Relatively speaking, there are some limitations in using Java API wizards to do data manipulations. For instance, after the mapped entity has been built and the entity manager object has been created, data manipulation can only be performed for that speci-fied entity object or data Table. In other words, a defined or mapped entity object cannot perform data manipulation for any other entity object or data Table.
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