T-SQL Stored Procedures: A Practical Guide with Examples

Structured Query Language (SQL) is a widely used programming language for managing and manipulating data stored in a relational database. One of the key features of SQL is the ability to write stored procedures, which are precompiled SQL statements that can be executed on demand. Stored procedures can improve database performance and simplify complex database operations. In this article, we will discuss how to write a stored procedure in Transact-SQL (T-SQL) with easy-to-understand coding examples.

What is a Stored Procedure?

A stored procedure is a precompiled SQL statement that can be stored in a database and executed on demand. Stored procedures can contain SQL statements, control flow statements, and variables, making them useful for performing complex database operations. Stored procedures can also be used to improve database performance, as they can be compiled and optimized for faster execution.

Creating a Stored Procedure in T-SQL

To create a stored procedure in T-SQL, you can use the CREATE PROCEDURE statement, followed by the procedure name and parameter list (if any). Here is an example of a simple stored procedure that retrieves all records from a table:

CREATE PROCEDURE GetAllRecords
AS
BEGIN
    SELECT * FROM MyTable;
END

This stored procedure is named GetAllRecords and does not take any parameters. It contains a single SQL statement…