Each entry fully specifies the corresponding SQL operation, describing each of the parameters used in the operation. The SQLJ standard requires that the profiles be of standard format and content. Therefore, for your application to use Oracle extended features, you must customize your profiles. By default this occurs automatically. For example, you must customize your profile to use Oracle objects in your SQLJ application.
Vendors can improve performance through specific optimizations related to how metadata is used.
Although SQLJ profile file names end in the .ser extension, this does not mean that all .ser files are profiles. All serialized objects use that extension, and a SQLJ program unit can use serialized objects aside from its profiles. SQLJ does not produce a profile if there are no SQLJ executable statements in the source code. All Rights Reserved.