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Which two statements are true regarding a PL/SQL package body? (Choose two.)
Correct Answer: A,D
Explanation/Reference: Explanation: Package Specification and Body Package bodies: * Are separate from package specifications. Because of this, the code of the body can be changed and recompiled, and other objects that are dependent on the specification are not marked invalid. * Contain the code for subprograms defined in the package specification. This is where the work is done. The specification shows how to call subprograms within the package: the body is the code section * Cannot be compiled unless the package specification has already been compiled. You can create a specification without a body- but you cannot create a body without a specification. * May be wrapped to hide details of the code. Wrap is a stand-alone program that obfuscates PL SQL source code so that you can deliver PL SQL applications without exposing your source code. For more information about the use of wrap, see the PL/SQL Packages and Types Reference.