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rajiv
answered May 2 '23 00:00
Stored procedures and functions are two types of reusable code that can be created and stored in a MySQL database . They can be called from within SQL statements or from other applications that connect to the database.
A stored procedure is a set of SQL statements that are stored in the database and executed as a single unit . It can take input parameters and return output parameters. A stored procedure can be created using the CREATE PROCEDURE statement, and can be called using the CALL statement. Stored procedures can be used to perform complex data manipulation tasks, such as filtering and aggregating data, and can be used to encapsulate business logic within the database.
A function, on the other hand, is a type of stored procedure that returns a single value . It can take input parameters and use them to calculate a return value, which can be used in SQL statements or other parts of the application. Functions can be created using the CREATE FUNCTION statement, and can be called like any other function in the application code.
Both stored procedures and functions are stored in the database and can be used by multiple applications or SQL statements . This makes them a powerful tool for encapsulating complex logic within the database, and for improving the performance and scalability of database-driven applications. They also provide a way to modularize and reuse code, making it easier to maintain and update applications over time.
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