What is a stored procedure

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What is the make-up of a stored procedure (things each must have to be a stored procedure)?

Feb 4, 2022 in Database by Vaani
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1 answer to this question.

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A stored procedure is a set of precompiled SQL statements that are used to perform a special task.

Stored procedures are a batch of SQL statements that can be executed in a couple of ways. Most major DBMs support stored procedures; however, not all do. You will need to verify with your particular DBMS help documentation for specifics. As I am most familiar with SQL Server I will use that as my samples.

To create a stored procedure the syntax is fairly simple:

CREATE PROCEDURE <owner>.<procedure name>

     <Param> <datatype>

AS

     <Body>

So for example:

CREATE PROCEDURE Users_GetUserInfo

    @login nvarchar(30)=null

AS

    SELECT * from [Users]
    WHERE ISNULL(@login,login)=login

Stored procedures also have a security benefit in that you can grant execute rights to a stored procedure but the user will not need to have read/write permissions on the underlying tables. This is a first step against SQL injection.

answered Feb 4, 2022 by Neha
• 8,940 points

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