An Introduction to SQL Stored Procedures

SQL stored procedures simplify repetitive tasks and enhance database performance. This article introduces you to stored procedures, their creation, and usage.

SQL Stored Procedures

Here’s a simple MySQL stored procedure example.

CREATE P…


This content originally appeared on DEV Community and was authored by DbVisualizer

SQL stored procedures simplify repetitive tasks and enhance database performance. This article introduces you to stored procedures, their creation, and usage.

SQL Stored Procedures

Here's a simple MySQL stored procedure example.

CREATE PROCEDURE getTop5Users()
BEGIN
    SELECT
        id,
        nickname,
        points
    FROM
        users
    ORDER BY
        points DESC
    LIMIT
        5;
END

Run the procedure with this query.

CALL getTop5Users();

This command fetches the top five users.

FAQ

What databases allow stored procedures?
Supported by MySQL, PostgreSQL, Oracle, SQL Server, DB2, and others.

What is the difference between a stored procedure and a function?
Stored procedures execute complex tasks via specific commands, while functions can be used within SQL queries.

What are the four most important parts of a stored procedure?

  • Name
  • Input parameters
  • Body
  • Output parameters

How to execute a stored procedure in SQL Server?
Use EXECUTE or EXEC followed by the procedure name and parameters.

Conclusion

Stored procedures are crucial for efficient database management. For a detailed tutorial, check out the full article here Stored Procedures in SQL: A Complete Tutorial.


This content originally appeared on DEV Community and was authored by DbVisualizer


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