SQL Server Stored Procedure Tutorial

Overview

A stored procedure is nothing more than prepared SQL code that you save so you can reuse the code over and over again. So if you think about a query that you write over and over again, instead of having to write that query each time you would save it as a stored procedure and then just call the stored procedure to execute the SQL code that you saved as part of the stored procedure.

In addition to running the same SQL code over and over again you also have the ability to pass parameters to the stored procedure, so depending on what the need is the stored procedure can act accordingly based on the parameter values that were passed.

Take a look through each of these topics to learn how to get started with stored procedure development for SQL Server.

You can either use the outline on the left or click on the arrows to the right or below to scroll through each of these topics.

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Comments For This Article

Saturday, March 25, 2023 - 12:18:35 PM - David Gwyn Smith	Back To Top (91048)
excellent article.

Monday, April 11, 2022 - 3:22:11 AM - Mahmoud

I have write a query that send me a message from my DB, containing some information of my tables. this is the code:

USE [Database-name];
GO

/*Declare Variables for HTML*/

DECLARE @Style NVARCHAR(MAX)= '';
DECLARE @tableHTML NVARCHAR(MAX)= '';

/*Define CSS for html to use*/

SET @Style += +N'<style type="text/css">' + N'.tg {border-collapse:collapse;border-spacing:0;border-color:#aaa;}'
+ N'.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#aaa;color:#333;background-color:#fff;}'
+ N'.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:#aaa;color:#fff;background-color:#0F3870;}'
+ N'.tg .tg-9ajh{font-weight:bold;background-color:lightgrey}' + N'.tg .tg-hgcj{font-weight:bold;text-align:center}'
+ N'</style>';

SET @tableHTML = @Style + @tableHTML + N'<H2>CDR Summary</H2>'
+ N'<table class="tg">' --DEFINE TABLE
/*Define Column Headers and Column Span for each Header Column*/
+ N'<tr>'
+ N'<th class="tg-hgcj" colspan="4">CDR</th>'
+ N'</tr>'
+ N'</tr>'
/*Define Column Sub-Headers*/
+ N'<tr>'
+ N'<td class="tg-9ajh">Total Attempt</td>'
+ N'<td class="tg-9ajh">Total Duration in Min</td>'
/*Define data for table and cast to xml*/
+ CAST(( SELECT td = CONVERT(CHAR(8), count(id), 112),
'',
td = CAST(SUM(DurationInSeconds) / 60 AS NUMERIC(18,2)) ,
''
FROM [TOneWhS_CDR].[CDR]
FOR
XML PATH('tr') ,
TYPE
) AS NVARCHAR(MAX))
+ N'</table>'
+ N'</br>'
+ N'</br>'
+ N'<table class="tg">' --DEFINE TABLE
/*Define Column Headers and Column Span for each Header Column*/
+ N'<tr>'
+ N'<th class="tg-hgcj" colspan="2">CDR Main</th>'
+ N'<th class="tg-hgcj" colspan="2">CDR Invalid</th>'
+ N'<th class="tg-hgcj" colspan="2">CDR Failed</th>'
+ N'<th class="tg-hgcj" colspan="2">CDR Partial</th>'
+ N'<th class="tg-hgcj" colspan="2">CDR interconnect</th>'
+ N'</tr>'
/*Define Column Sub-Headers*/
+ N'<tr>'
+ N'<td class="tg-9ajh">Total Attempt</td>'
+ N'<td class="tg-9ajh">Total Duration in Min</td>'
+ N'<td class="tg-9ajh">Total Attempt</td>'
+ N'<td class="tg-9ajh">Total Duration in Min</td>'
+ N'<td class="tg-9ajh">Total Attempt</td>'
+ N'<td class="tg-9ajh">Total Duration in Min</td>'
+ N'<td class="tg-9ajh">Total Attempt</td>'
+ N'<td class="tg-9ajh">Total Duration in Min</td>'
+ N'<td class="tg-9ajh">Total Attempt</td>'
+ N'<td class="tg-9ajh">Total Duration in Min</td>'

/*Define data for table and cast to xml*/

+ CAST(( SELECT td = CONVERT(CHAR(8), count(a.CDRId), 112),
'',
td = CAST(SUM(a.DurationInSeconds) / 60 AS NUMERIC(18,2)),
'',
td = CONVERT(CHAR(8), count(b.CDRId), 112),
'',
td = CAST(SUM(b.DurationInSeconds) / 60 AS NUMERIC(18,2)),
'',
td = CONVERT(CHAR(8), count(c.CDRId), 112),
'',
td = CAST(SUM(c.DurationInSeconds) / 60 AS NUMERIC(18,2)),
'',
td = CONVERT(CHAR(8), count(d.CDRId), 112),
'',
td = CAST(SUM(d.DurationInSeconds) / 60 AS NUMERIC(18,2)),
'',
td = CONVERT(CHAR(8), count(e.CDRId), 112),
'',
td = CAST(SUM(e.DurationInSeconds) / 60 AS NUMERIC(18,2)),
''
from [table1] a
full join [table2] b
on a.CDRId = b.CDRId
full join [table3] c
on a.CDRId = c.CDRId
full join [table4] d
on a.CDRId = d.CDRId
full join [table] e
on a.CDRId = e.CDRId
FOR
XML PATH('tr') ,
TYPE
) AS NVARCHAR(MAX))
+ N'</table>'
+ N'</br>'
+ N'</br>'
+ N'<table class="tg">' --DEFINE TABLE

/*Define Column Sub-Headers 2 RESULT SECTION!!!!!!*/

+ N'<tr>'
+ N'<td class="tg-9ajh">Result</td>'
+ N'<td class="tg-9ajh" style="background-color: red;"></td>'

/*Define data for table and cast to xml*/

+ 'MISSING CODE'

+ N'</table>'

EXEC msdb.dbo.sp_send_dbmail
@profile_name = 'Mahmoud El Khatib',
@recipients = 'my email',
@body = @tableHTML,
@body_format = 'HTML',
@subject = 'CDR';

--------------------------------------------------------------------------------------------
This code generates a table and information sent to my email with specific design in CSS section.[this is the output of the code above][1]
--------------------------------------------------------------------------------------------

In the result section, I want to put a procedure that check my database in a true or false statement, if it's true it will write "All good!" with background green, if it's false it will write "All Bad!" with background red.

this is my procedure

DROP procedure IF EXISTS spchecktables
GO
create procedure spchecktables
as
declare @cdr int
declare @maincdrtable int
declare @invalidcdrtable int
declare @failedcdrtable int
declare @interconnectcdrtable int
declare @partialcdrtable int

select @cdr = count(id) from [TOneWhS_CDR].[CDR]
select @maincdrtable = count(CDRId) from [TOneWhS_CDR].[BillingCDR_Main]
select @invalidcdrtable = count(CDRId) from [TOneWhS_CDR].[BillingCDR_Invalid]
select @failedcdrtable = count(CDRId) from [TOneWhS_CDR].[BillingCDR_Failed]
select @interconnectcdrtable = count(CDRId) from [TOneWhS_CDR].[BillingCDR_Interconnect]
select @partialcdrtable = count(CDRId) from [TOneWhS_CDR].[BillingCDR_PartialPriced]

if (@cdr = @maincdrtable + @invalidcdrtable + @failedcdrtable + @interconnectcdrtable + @partialcdrtable )
print 'All is good!'
else
print 'all is bad'
go

exec spchecktables;

--------------------------------------------------------------------------------------------

MY REQUEST IS: how to embed my procedure in my first code?

Monday, April 23, 2018 - 1:24:28 AM - mahmoud yasein

Good job

Friday, February 17, 2017 - 2:38:28 PM - Sam

Hello Greg,

Thank You for the tutorial on Stored Procedures, I highly appreciated it.

Can you recommend any book(s) or online resource to go beyond what you have shon here? I will feel much obliged for your help.

Have a nice day.

Regards,

Wednesday, July 6, 2016 - 3:11:00 AM - Keval Shah	Back To Top (41822)
Hi,, i want Udate inner join Stored Procedure Code. Because i tried it, but i can't write properly.

Saturday, May 21, 2016 - 7:45:49 AM - Ravi

What is Work of SET NONCOUNT

Describe IN Detail.

Monday, April 11, 2016 - 8:20:05 AM - jonasstuart

Example: Creating Stored Procedure

CREATE PROCEDURE TESTPROCEDURE

-- Add the parameters for the stored procedure here

@PASSWORD VARCHAR(50)

BEGIN

-- SET NOCOUNT ON added to prevent extra result sets from

-- interfering with SELECT statements.

SET NOCOUNT ON;

-- Insert statements for procedure here

SELECT * FROM userlogininfo WHERE Password = @PASSWORD

END

// OUTPUT: EXEC TESTPROCEDURE '123456'

Desired Output: 102 Arunsingh Vashundhra Ghaziabad [email protected] 123456 7607185995 Admin 1989-02-28

Tuesday, April 5, 2016 - 6:10:33 AM - karthikaqpt Back To Top (41138)

Try this code for validation. Learn sql basics from https://www.youtube.com/watch?v=7Vtl2WggqOg

CREATE STORED PROCEDURE CheckPassword

    @username VARCHAR(20),
    @password varchar(20)
AS
BEGIN

SET NOCOUNT ON

IF EXISTS(SELECT * FROM usertable WHERE username = @username AND password = @password)
    SELECT 'true' AS UserExists
ELSE
    SELECT 'false' AS UserExists

END

Wednesday, March 9, 2016 - 6:58:11 AM - Greg Robidoux

Hi Damanpreet,

the issue is this part of the stored procedure: if @personid = pr.projectmanagerid. There is no value yet for pr.projectmanagerid, so you get the error.

Rewrite as follows:

alter procedure usp_projectcount
@count int, @personid int
as
set nocount on
if exists (select top 1 projectmanagerid from project where projectmanagerid = @personid)
begin
   (select top (@count) count(pr.projectmanagerid) from person p
   inner join project pr on p.personid = pr.projectmanagerid
   )
end
else
print 'no record found'

Wednesday, March 9, 2016 - 2:33:42 AM - Damanpreet

Hi,

I am geeting an error msg 4104 (The multi-part identifier "pr.projectmanagerid" could not be bound.)

Please help in resolving this error.

alter procedure usp_projectcount
@count int, @personid int
as
set nocount on
if @personid = pr.projectmanagerid
begin
(select top (@count) count(pr.projectmanagerid) from person p
inner join project pr on p.personid = pr.projectmanagerid
)
end
else
print 'no record found'

Friday, February 26, 2016 - 12:29:44 PM - mounika

Hello sir,

I want to write a stored procedure for login page:

1. If a user is able to login then it needs to check user table if the user is present it return success and retrieve the data which user has access

2.If the user is unable to login then it sends failure and writes the username and expired date in audit table

Thursday, January 28, 2016 - 8:35:36 AM - Greg Robidoux

@bhavsinh, when you setup parameters to be passed to a stored procedure you specify the data type, so that is step one in validating the type of input that is passed. You can then write logic within the stored procedure to further validate the data and then take different paths in the stored procedure based on the the logic you write.

Look at this for passing parameters: https://www.mssqltips.com/sqlservertutorial/162/how-to-create-a-sql-server-stored-procedure-with-parameters/

You can also use If logic in your stored procedure. Take a look at this: https://msdn.microsoft.com/en-us/library/ms182717.aspx

Thanks
Greg

Thursday, January 28, 2016 - 3:22:49 AM - bhavsinh

hello sir,

in stored Procedure how to give validation by user input

SQL Server Stored Procedure Tutorial

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By: Greg Robidoux

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