SQL 代理作业可以并行运行并直接从 TSQL 创建。 answer by Remus Rusanu 包含一个链接，其中提到了这一点以及一些缺点。
另一个缺点是创建作业需要额外的安全权限。此外，对于下面的实施，作业必须以特定用户+登录身份运行，并具有额外的作业管理权限。
可以以不同（更安全）的用户身份运行任意 SQL，但我认为它需要 sysadmin 权限才能指定作业。
如果需要，返回的@pJobIdHexOut 可用于停止作业。
create function Common.ufn_JobIdFromHex(
@pJobIdBinary binary(16)
)
returns varchar(100) as
/*---------------------------------------------------------------------------------------------------------------------
Purpose: Convert the binary represenation of the job_id into the job_id string that can be used in queries
against msdb.dbo.sysjobs.
http://stackoverflow.com/questions/68677/how-can-i-print-a-binary-value-as-hex-in-tsql
http://stackoverflow.com/questions/3604603
MsgBoards
Modified By Description
---------- -------------- ---------------------------------------------------------------------------------------
2014.08.22 crokusek Initial version, http://stackoverflow.com/questions/3604603 and MsgBoards.
---------------------------------------------------------------------------------------------------------------------*/
begin
-- Convert from binary and strip off the '0x'.
--
declare
@jobIdHex varchar(100) = replace(convert(varchar(300), @pJobIdBinary, 1), '0x', '');
-- The endianness appears to be backwards and there are dashes needed.
--
return
substring(@jobIdHex,7,2) +
substring(@jobIdHex,5,2) +
substring(@jobIdHex,3,2) +
substring(@jobIdHex,1,2) +
'-' +
substring(@jobIdHex,11,2) +
substring(@jobIdHex,9,2) +
'-' +
substring(@jobIdHex,15,2) +
substring(@jobIdHex,13,2) +
'-' +
substring(@jobIdHex,17,4) +
'-' +
substring(@jobIdHex,21,12);
end
go
create proc [Common].[usp_CreateExecuteOneTimeBackgroundJob]
@pJobNameKey varchar(100), -- Caller should ensure uniqueness to avoid a violation
@pJobDescription varchar(1000),
@pSql nvarchar(max),
@pJobIdHexOut varchar(100) = null out, -- JobId as Hex string. For SqlServer 2014 binary(16) = varchar(64)
@pDebug bit = 0 -- True to include print messages
--
with execute as 'TSqlBackgroundJobOwner' -- requires special permissions (See below)
as
/*---------------------------------------------------------------------------------------------------------------------
Purpose: Create a one time background job and launch it immediately. The job is owned by the "execute as" UserName
Caller must ensure the @pSql argument is safe.
Required Permissions for "execute as" user:
-- User must be created with associated login (w/ deny connect).
use [msdb];
create user [$UserName$] for login [$LoginName$];
alter role [SQLAgentUserRole] add member [$UserName$];
alter role [SQLAgentReaderRole] add member [$UserName$];
alter role [SQLAgentOperatorRole] add member [$UserName$];
grant select on dbo.sysjobs to [$UserName$];
grant select on dbo.sysjobactivity to [$UserName$];',
use [Master];
create user [$UserName$] for login [$LoginName$];
grant execute on xp_sqlagent_is_starting to [$UserName$];
grant execute on xp_sqlagent_notify to [$UserName$];';
Modified By Description
---------- ----------- ------------------------------------------------------------------------------------------
2014.08.22 crokusek Initial version
2015.12.22 crokusek Use the SP caller as the job owner (removed the explicit setting of the job owner).
---------------------------------------------------------------------------------------------------------------------*/
begin try
declare
@usp varchar(100) = object_name(@@procid),
@currentDatabase nvarchar(100) = db_name(),
@jobId binary(16),
@jobOwnerLogin nvarchar(100);
set xact_abort on; -- ensure transaction is aborted on non-catchables like client timeout, etc.
begin transaction
exec msdb.dbo.sp_add_job
@job_name=@pJobNameKey,
@enabled=1,
@notify_level_eventlog=0,
@notify_level_email=2,
@notify_level_netsend=2,
@notify_level_page=2,
@delete_level=3,
@description=@pJobDescription,
@category_name=N'Database Maintenance',
-- If not overridden then the the current login is the job owner
--@owner_login_name=@jobOwnerLogin, -- Requires sysadmin to set this so avoiding.
@job_id = @jobId output;
-- Get the job_id string of the jobId (special format)
--
set @pJobIdHexOut = Common.ufn_JobIdFromHex(@jobId);
if (@pDebug = 1)
begin
print 'JobId: ' + @pJobIdHexOut;
print 'Sql: ' + @pSql;
end
exec msdb.dbo.sp_add_jobserver @job_id=@jobId; -- default is local server
exec msdb.dbo.sp_add_jobstep
@job_id=@jobId,
@step_name=N'One-Time Job Step 1',
@step_id=1,
@command=@pSql,
@database_name=@currentDatabase,
@cmdexec_success_code=0,
@on_success_action=1,
@on_fail_action=2,
@retry_attempts=0,
@retry_interval=0,
@os_run_priority=0,
@subsystem=N'TSQL',
@flags=0
;
declare
@startResult int;
exec @startResult = msdb.dbo.sp_start_job
@job_id = @jobId;
-- End the transaction
--
if (@startResult != 0)
raiserror('Unable to start the job', 16, 1); -- causes rollback in catch block
else
commit; -- Success
end try
begin catch
declare
@CatchingUsp varchar(100) = object_name(@@procid);
if (xact_state() = -1)
rollback;
--exec Common.usp_Log
-- @pMethod = @CatchingUsp;
--exec Common.usp_RethrowError
-- @pCatchingMethod = @CatchingUsp;
end catch
go