SQL LEARNING SERIES PART-10

Complete SQL Topics for Data Analysis
-> https://t.me/sqlspecialist/523

Today we will learn about Stored Procedures and Functions:

Stored procedures and functions are precompiled and stored in the database, providing a way to encapsulate and reuse logic on the server side.

#### Stored Procedures:
A stored procedure is a set of SQL statements that can be executed as a single unit.

CREATE PROCEDURE procedure_name
AS
BEGIN
    -- SQL statements
END;

#### Executing a Stored Procedure:

EXEC procedure_name;

#### Functions:
A function returns a value based on input parameters. There are two types: scalar functions and table-valued functions.

CREATE FUNCTION function_name (@param1 INT, @param2 VARCHAR(50))
RETURNS INT
AS
BEGIN
    -- SQL statements
    RETURN some_value;
END;

#### Calling a Function:

SELECT dbo.function_name(param1, param2);

Stored procedures and functions enhance code modularity and maintainability. They are valuable for implementing business logic on the database side.

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Hope it helps :)