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Asked 2 years ago
29 Jul 2021
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Gwen

Gwen posted

What are procedures in DBMS ?

What are procedures in DBMS ?
css-learner

css-learner
answered Feb 25 '23 00:00

In a database management system (DBMS), a procedure is a precompiled set of SQL statements that are stored in the database and can be executed as a single unit . Procedures are often used to perform a specific task or set of tasks within the database, such as inserting, updating, or deleting data.

Procedures can take one or more input parameters and return one or more output parameters. They can also contain control structures such as loops, conditionals, and branching statements, which allow for more complex logic to be executed within the database.

The main benefits of using procedures in a DBMS include:

Modularity : Procedures provide a way to break down complex tasks into smaller, more manageable units that can be developed, tested, and maintained independently.

Reusability : Procedures can be called from multiple locations within the database, which allows for code reuse and reduces duplication of effort.

Security : Procedures can be granted appropriate permissions and access controls to ensure that only authorized users can execute them.

Performance : Because procedures are precompiled and stored in the database, they can be executed more quickly than equivalent SQL statements that are executed dynamically.

Procedures are often used in conjunction with other database objects such as triggers, views, and functions to create more complex and powerful database applications. They are supported by most major DBMSs, including Oracle, SQL Server, MySQL, and PostgreSQL.
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