SQL订阅状态的自动检查及自动启动

USE MSDB  ----注意需要使用MSDB这个系统数据库
GO

IF EXISTS(SELECT * FROM SYSOBJECTS WHERE NAME='auto_sp_MSget_jobstate'  AND TYPE='P')
DROP PROC  auto_sp_MSget_jobstate
GO

CREATE PROCEDURE auto_sp_MSget_jobstate
@job_id  UNIQUEIDENTIFIER,
@jobname NVARCHAR(50)
AS
BEGIN
 DECLARE @is_sysadmin INT
 DECLARE @job_owner   sysname
 DECLARE @job_state   INT 
 DECLARE @job_id_as_char VARCHAR(36)

 SET NOCOUNT ON

 CREATE TABLE #xp_results (job_id                UNIQUEIDENTIFIER NOT NULL,
       last_run_date         INT              NOT NULL,
       last_run_time         INT              NOT NULL,
       next_run_date         INT              NOT NULL,
       next_run_time         INT              NOT NULL,
       next_run_schedule_id  INT              NOT NULL,
       requested_to_run      INT              NOT NULL, -- BOOL
       request_source        INT              NOT NULL,
       request_source_id     sysname          collate database_default null,
       running               INT              NOT NULL, -- BOOL
       current_step          INT              NOT NULL,
       current_retry_attempt INT              NOT NULL,
       job_state             INT              NOT NULL)

 -- Need a job_id
 if (@job_id IS NULL)
 BEGIN
  SELECT @job_id_as_char = CONVERT(VARCHAR(36), @job_id)
  RAISERROR(14262, -1, -1, '@job_id', @job_id_as_char)
  RETURN(1) -- Failure
 END

 -- Capture job execution information (for local jobs only since that's all SQLServerAgent caches)
 SELECT @is_sysadmin = ISNULL(IS_SRVROLEMEMBER(N'sysadmin'), 0)
 SELECT @job_owner = suser_sname(suser_sid())
 INSERT INTO #xp_results
 EXECUTE master.dbo.xp_sqlagent_enum_jobs @is_sysadmin, @job_owner

 -- Select the job state of the job in question
 SELECT @job_state = job_state FROM #xp_results WHERE @job_id = job_id

 -- Error if we have no rows selected
 if (@job_state IS NULL)
 BEGIN
  SELECT @job_id_as_char = CONVERT(VARCHAR(36), @job_id)
  RAISERROR(14262, -1, -1, '@job_id', @job_id_as_char)
  RETURN(1) -- Failure
 END
 ELSE
 -- SELECT @job_state
if @job_state<>1 ---
BEGIN
EXEC sp_start_job @job_name = @jobname
END
 
 -- All done
 DROP TABLE #xp_results
 RETURN(0) -- Success
END

exec  auto_sp_MSget_jobstate  @job_id,@jobname