重新部署 SQL 服务器作业返回指定的@name () 已存在

Question

我创建了一个每天运行一次的作业。作业的脚本将作为 Visual Studio 中的后期脚本的一部分进行部署。 第一次部署很顺利，作业已成功部署，但是当我尝试再次部署时，我收到作业已存在的错误：我的代码如下所示：

USE [msdb]
GO

BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE 
name=N'[Uncategorized (Local)]' AND category_class=1)
BEGIN
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N'JOB', @type=N'LOCAL', 
@name=N'[Uncategorized (Local)]'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
END
DECLARE @jobId BINARY(16)
EXEC @ReturnCode =  msdb.dbo.sp_add_job @job_name=N'test', 
@enabled=1, 
@notify_level_eventlog=2, 
@notify_level_email=0, 
@notify_level_netsend=0, 
@notify_level_page=0, 
@delete_level=0, 
@description=N'EXEC [dbo].[test]', 
@category_name=N'[Uncategorized (Local)]', 
@owner_login_name=N'XXXXX', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, 
@step_name=N'test', 
@step_id=1, 
@cmdexec_success_code=0, 
@on_success_action=1, 
@on_success_step_id=0, 
@on_fail_action=2, 
@on_fail_step_id=0, 
@retry_attempts=0, 
@retry_interval=0, 
@os_run_priority=0, @subsystem=N'TSQL', 
@command=N'exec  [dbo].[test]', 
@database_name=N'BAC', 
@output_file_name=N'H:database_Clean', 
@flags=14
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, 
@start_step_id = 1
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobschedule @job_id=@jobId, 
@name=N'test', 
@enabled=1, 
@freq_type=8, 
@freq_interval=1, 
@freq_subday_type=1, 
@freq_subday_interval=0, 
@freq_relative_interval=0, 
@freq_recurrence_factor=1, 
@active_start_date=20200130, 
@active_end_date=99991231, 
@active_start_time=22000, 
@active_end_time=235959, 
@schedule_uid=N'14301302-23af-424e-9a11-409cbfc0dddc'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, 
@server_name = N'(local)'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
COMMIT TRANSACTION
GOTO EndSave
QuitWithRollback:
IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION
EndSave:
GO

我实际上使用以下脚本检查作业是否存在：

IF NOT EXISTS(SELECT name FROM msdb.dbo.sysoperators WHERE name=N'test')

但它仍然给了我同样的错误：

Msg 14261, Level 16, State 1, Procedure sp_verify_job, Line 57 [Batch Start Line 13]
The specified @name ('test') already exists.

我检查了以下问题@name已经存在的问题，但答案是删除作业然后部署。我不想删除它应该检查它是否存在的工作。

Answer 1

IF NOT EXISTS(SELECT name FROM msdb.dbo.sysoperators WHERE name=N'test')

这不会检查作业test是否存在，而是检查运算符test是否存在。

你想要

IF NOT EXISTS(SELECT name FROM msdb.dbo.sysjobs WHERE name=N'test')

所以你的完整代码将是

USE [msdb]
GO
IF NOT EXISTS(SELECT name FROM msdb.dbo.sysjobs WHERE name=N'test')
BEGIN
BEGIN TRANSACTION
DECLARE @ReturnCode INT
SELECT @ReturnCode = 0
IF NOT EXISTS (SELECT name FROM msdb.dbo.syscategories WHERE 
name=N'[Uncategorized (Local)]' AND category_class=1)
BEGIN
EXEC @ReturnCode = msdb.dbo.sp_add_category @class=N'JOB', @type=N'LOCAL', 
@name=N'[Uncategorized (Local)]'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
END
DECLARE @jobId BINARY(16)
EXEC @ReturnCode =  msdb.dbo.sp_add_job @job_name=N'test', 
@enabled=1, 
@notify_level_eventlog=2, 
@notify_level_email=0, 
@notify_level_netsend=0, 
@notify_level_page=0, 
@delete_level=0, 
@description=N'EXEC [dbo].[test]', 
@category_name=N'[Uncategorized (Local)]', 
@owner_login_name=N'XXXXX', @job_id = @jobId OUTPUT
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobstep @job_id=@jobId, 
@step_name=N'test', 
@step_id=1, 
@cmdexec_success_code=0, 
@on_success_action=1, 
@on_success_step_id=0, 
@on_fail_action=2, 
@on_fail_step_id=0, 
@retry_attempts=0, 
@retry_interval=0, 
@os_run_priority=0, @subsystem=N'TSQL', 
@command=N'exec  [dbo].[test]', 
@database_name=N'BAC', 
@output_file_name=N'H:database_Clean', 
@flags=14
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_update_job @job_id = @jobId, 
@start_step_id = 1
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobschedule @job_id=@jobId, 
@name=N'test', 
@enabled=1, 
@freq_type=8, 
@freq_interval=1, 
@freq_subday_type=1, 
@freq_subday_interval=0, 
@freq_relative_interval=0, 
@freq_recurrence_factor=1, 
@active_start_date=20200130, 
@active_end_date=99991231, 
@active_start_time=22000, 
@active_end_time=235959, 
@schedule_uid=N'14301302-23af-424e-9a11-409cbfc0dddc'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
EXEC @ReturnCode = msdb.dbo.sp_add_jobserver @job_id = @jobId, 
@server_name = N'(local)'
IF (@@ERROR <> 0 OR @ReturnCode <> 0) GOTO QuitWithRollback
COMMIT TRANSACTION
GOTO EndSave
QuitWithRollback:
IF (@@TRANCOUNT > 0) ROLLBACK TRANSACTION
EndSave:
END