What Is A Forward Declaration ? What Is Its Use ?

1.	What Is A Forward Declaration ? What Is Its Use ?
Answer» 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. 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.

Answer»

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.

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.

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