Wednesday, June 2, 2010

How To Stop Or Start Windows Service Thru SQL Script

This Article, helps to start a windows services thru SQL Script. To control the windows services, we can use SQL Server’s Extended Stored Procedure, xp_cmdshell

Through command prompt, we can control the services by using MS-DOS Commands

NET START - Start the specified network or local service.
NET STOP - Stop the specified network or local service.

To Execute MS-DOS Commands, we can use the Extended SP: xp_cmdshell

The following piece of script will helps to stop/Start a windows service. In this code, I planned to start or stop the Services of SQL Server Analysis Services

declare @CmdLine varchar(1024)
declare @Command varchar(100)
declare @RetInfo varchar(8000)
select @Command = 'net start MSSQLServerOLAPService'
print @Command
exec @RetInfo = master.dbo.xp_cmdshell @Command
print @RetInfo

When you Execute this code, you may face the following error like

Msg 15281, Level 16, State 1, Procedure xp_cmdshell, Line 1
SQL Server blocked access to procedure 'sys.xp_cmdshell' of component 'xp_cmdshell' because this component is turned off as part of the security configuration for this server. A system administrator can enable the use of 'xp_cmdshell' by using sp_configure. For more information about enabling 'xp_cmdshell', see "Surface Area Configuration" in SQL Server Books Online.
For security reason, SQL Server blocked access to the Procedure xp_cmdshell


If you face this error, you can enable this feature By following piece of script:
-- To allow advanced options to be changed.
EXEC sp_configure 'show advanced options', 1
GO
-- To update the currently configured value for advanced options.
RECONFIGURE
GO
-- To enable the feature.
EXEC sp_configure 'xp_cmdshell', 1
GO
-- To update the currently configured value for this feature.
RECONFIGURE
GO

Now if you run the previous code, it will start your services.
Hope it helps!

4 comments:

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  3. Hi how to Check the Status of Windows service in remote machine.

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  4. This was a great tutorial to get me started, thank you!

    My need was to stop / start a service that will not always have the same name but will always have the same start of the name. Mine was as follows:

    STOPPING A SERVICE
    ------------------

    -- Declare all variables for use
    declare @CmdLine varchar(1024)
    declare @Command1 varchar(100)
    declare @Command2 varchar(100)
    declare @RetInfo varchar(8000)
    declare @TableList table(list varchar(100))
    declare @ServiceName varchar(100)

    -- Prime the variable @Command1 with a list of running services
    select @Command1 = 'net start'
    print @Command1

    -- Prime the variable @Command2 with the NET STOP command
    select @Command2 = 'net stop '
    print @Command2

    -- Create a table that contains a list of all running services
    insert into @TableList
    exec @RetInfo = master.dbo.xp_cmdshell @Command1

    -- Select the exact Agresso service from the list provided. Note that the Agresso
    -- service name will change between organisations and therefore this makes the script
    -- more generic. It will not work however if multiple services are running on the
    -- same machine i.e. Agresso 5.4 and multi-environment instances.
    select @ServiceName = LTRIM(list) from @TableList where list like ('%SERVICE_NAME%')
    select @ServiceName

    -- Build up the NET STOP command so that it can stop the Agresso services properly.
    select @Command2 = @Command2 + '"' + @ServiceName + '"'
    exec @RetInfo = master.dbo.xp_cmdshell @Command2
    select @Command2



    STARTING A SERVICE
    ------------------

    Note that this is much harder as you cant simply use NET STOP to list all stopped services.

    -- Declare all variables for use
    declare @CmdLine varchar(1024)
    declare @Command1 varchar(100)
    declare @Command2 varchar(100)
    declare @Command3 varchar(100)
    declare @RetInfo varchar(8000)
    declare @TableList table(list varchar(100))
    declare @ServiceName varchar(100)

    -- Prime the variable @Command1 with a list of running services
    select @Command1 = 'sc query type= service state= inactive'
    print @Command1

    -- Prime
    select @Command3 = 'net start '
    print @Command3

    -- Create a table that contains a list of all running services
    insert into @TableList
    exec @RetInfo = master.dbo.xp_cmdshell @Command1
    select * from @TableList

    -- Select the exact Agresso service from the list provided. Note that the Agresso
    -- service name will change between organisations and therefore this makes the script
    -- more generic. It will not work however if multiple services are running on the
    -- same machine i.e. Agresso 5.4 and multi-environment instances.
    select @ServiceName = LTRIM(REPLACE(list,'DISPLAY_NAME:','')) from @TableList where list like ('%SERVICE_NAME%')
    select @ServiceName

    -- Build up the NET STOP command so that it can stop the Agresso services properly.
    select @Command3 = @Command3 + '"' + @ServiceName + '"'
    exec @RetInfo = master.dbo.xp_cmdshell @Command3
    select @Command3


    To karthikeyan, you can check the status of a running service by the following syntax:

    sc query type= service state= active

    ReplyDelete