May 10, 2012

sp_MSdrop_logreader_agent (Transact-SQL MetaData) Definition

Please note: that the following source code is provided and copyrighted by Microsoft and is for educational purpose only.
The meta data is from an SQL 2012 Server.

I have posted alot more, find the whole list here.

Goto Definition or MetaData

Definition:

sys.sp_MSdrop_logreader_agent(nvarchar @publisher
, nvarchar @publisher_db
, nvarchar @publication)

MetaData:

 create procedure sys.sp_MSdrop_logreader_agent   
(
@publisher sysname,
@publisher_db sysname,
@publication sysname -- Only used by 3rd party publisher
) AS
begin

SET NOCOUNT ON

--
-- Declarations.
--
DECLARE @retcode int
DECLARE @job_id binary(16)
DECLARE @job_step_uid uniqueidentifier
DECLARE @local_job bit
DECLARE @publisher_id smallint
DECLARE @name nvarchar(100)
DECLARE @agent_id int

--
-- security check
-- only db_owner can execute this
--
if (is_member ('db_owner') != 1)
begin
raiserror(14260, 16, -1)
return (1)
end
--
-- security check
-- Has to be executed from distribution database
--
if (sys.fn_MSrepl_isdistdb (db_name()) != 1)
begin
raiserror(21482, 16, -1, 'sp_MSdrop_logreader_agent', 'distribution')
return (1)
end
--
-- Initializations
--
select @publisher_id = srvid from master.dbo.sysservers where
UPPER(srvname) = UPPER(@publisher)


SELECT @job_id = job_id, @job_step_uid = job_step_uid, @local_job = local_job, @name = name, @agent_id = id FROM MSlogreader_agents WHERE
publisher_id = @publisher_id AND
publisher_db = @publisher_db AND
publication = @publication

-- Delete Perfmon instance
dbcc deleteinstance ("SQL Replication Logreader", @name)

-- Return if not exists
IF @local_job IS NULL
RETURN(0)

BEGIN TRAN

IF @local_job = 1
BEGIN
-- Don't drop the job for third party publications.
if exists (select * from msdb..MSdistpublishers where
UPPER(name) = UPPER(@publisher) and
thirdparty_flag = 0)
begin
IF EXISTS (SELECT * FROM msdb.dbo.sysjobs_view WHERE job_id = @job_id)
BEGIN
-- Checks if the job name matches one that is generated
-- by replication
EXEC @retcode = sys.sp_MSislogreaderjobnamegenerated
@publisher = @publisher,
@publisher_db = @publisher_db,
@job_id = @job_id
IF @@ERROR <> 0
GOTO UNDO

-- Only drop the job if the name was generated
IF @retcode = 0
BEGIN
EXEC @retcode = sys.sp_MSdrop_repl_job @job_id = @job_id,
@job_step_uid = @job_step_uid
IF @@ERROR <> 0 or @retcode <> 0
GOTO UNDO
END
END
end
END

DELETE MSlogreader_agents WHERE id = @agent_id
IF @@ERROR <> 0
GOTO UNDO

-- Remove history
DELETE MSlogreader_history WHERE
agent_id = @agent_id

IF @@ERROR <> 0
GOTO UNDO

COMMIT TRAN

RETURN(0)

UNDO:
if @@TRANCOUNT = 1
ROLLBACK TRAN
else
COMMIT TRAN
return(1)
end

No comments:

Post a Comment

Total Pageviews