What is the role of stored procedures in databases

The role of stored procedures in the database: 1. Stored procedures can accept parameters, output parameters, return single or multiple result sets and return values; 2. Stored procedures run relatively stably and there will not be too many Error; 3. The stored procedure is mainly run on the server to reduce the pressure on the client.

The role of stored procedures in the database:

First: Stored procedures have been pre-compiled because the SQL statements passed, so it runs faster.

Second: The stored procedure can accept parameters, output parameters, return single or multiple result sets and return values. Return the cause of the error to the program.

Third: The stored procedure runs relatively stably without too many errors. As long as it succeeds once, it will be run according to this program in the future.

Fourth: The stored process is mainly run on the server, reducing the pressure on the client.

Fifth: Stored procedures can include program flow, logic and queries to the database. At the same time, the data logic can be physically encapsulated and hidden.

Sixth: Stored procedures can execute a series of SQL statements in a single stored procedure.

Seventh: Stored procedures can reference other stored procedures from within their own stored procedures, which can simplify a series of complex statements.

Extended information:

Advantages of stored procedures:

1. The ability of stored procedures greatly enhances the functionality and flexibility of the SQL language sex.

2. The security and integrity of data can be guaranteed.

3. Through stored procedures, users without permission can indirectly access the database under control, thereby ensuring data security.

4. Through stored procedures, related actions can occur together, thereby maintaining the integrity of the database.

5. Before running the stored procedure, the database has analyzed its grammar and syntax, and provided an optimized execution plan. This compiled process can greatly improve the performance of SQL statements.

6. It can reduce network traffic.

7. Put the computing program that embodies the enterprise rules into the database server for centralized control.

More related free learning recommendations: mysql tutorial(video)

The above is the detailed content of What is the role of stored procedures in databases. For more information, please follow other related articles on the PHP Chinese website!