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.
