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This article contains information about the overall aspects of stored procedure usage.

A stored procedure is a schema object that consists of a set of SQL statements and other PL/SQL constructs, combined, stored in a database, and run as a unit to solve a specific problem or perform a set of related tasks. Processes enable you to combine the ease of use and flexibility of SQL with the procedural capabilities of structured programming languages. Large or complex processing that may require the execution of multiple SQL statements is moved to stored procedures, and all applications only call these procedures.

Objects similar to stored procedures are stored functions. Almost everything is true for procedures and also applies to functions. The main difference between these objects is that the function has a return value while the procedure does not.

Stored procedures and functions can have input, output, and input / output parameters.

The input parameter is a parameter whose value is passed to the stored procedure / function module. The value of the In parameter is constant; it cannot be changed or reassigned in the module.

For example, the following procedure inserts a row into the DEPT table:

one

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