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What is a forward declaration? What is its use?

April 26, 2017Declaration forward

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What is a forward declaration? What is its use?

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Ans – PL/SQL requires that you declare an identifier before using it. Therefore, you must declare a subprogram before calling it. This declaration at the start of a subprogram is called forward declaration. A forward declaration consists of a subprogram specification terminated by a semicolon.