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Database Knowledge Base / Oracle / Explain the difference between a FUNCTION, PROCEDURE and PACKAGE.

Explain the difference between a FUNCTION, PROCEDURE and PACKAGE.
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A function and procedure are the same in that they are intended to be a collection of PL/SQL code that carries a single task. While a procedure does not have to return any values to the calling application, a function will return a single value. A package on the other hand is a collection of functions and procedures that are grouped together based on their commonality to a business function or application.
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