SQL Server Agent - get my own job_id

问题

I'm running a SQL Server 2008 64 bit Developer Edition with Service Pack 1 installed. I have a SQL Server Agent Job. Within this job I want to get the job_id of my own job.
On MSDN (http://msdn.microsoft.com/en-us/library/ms175575(v=SQL.100).aspx) you can find a description of using tokens in job steps. Wow, great, that's what I'm looking for!! Just use (JOBID).
Since SQL Server 2005 SP1 you have to use macro like $(ESCAPE_NONE(JOBID)). No problem.
But if you try the example:

DECLARE @name NVARCHAR(128)
select @name =  name from msdb.dbo.sysjobs where job_id = $(ESCAPE_SQUOTE(JOBID))
PRINT @name

you get:
Incorrect syntax near 'ESCAPE_SQUOTE'. (Microsoft SQL Server, Error: 102)
Ok, now from the scratch:

PRINT N'$(ESCAPE_SQUOTE(JOBID))'

results in 0xE33FE637C10B3C49A6E958BB3EF06959 but the job_id is 37E63FE3-0BC1-493C-A6E9-58BB3EF06959
The "N'" I think makes an implicit conversion to NVARCHAR of the (JOBID)...
Ok, I think I have to care about the datatype of (JOBID). In the book "SQL Server 2008 Administration" on page 168/169 there's also an example of using (JOBID):

declare @jobid binary(16)
SELECT @jobid =Convert(Uniqueidentifier,$(ESCAPE_NONE(JOBID)))

results in:
Incorrect syntax near '('. (Microsoft SQL Server, Error: 102)
I'm totally confused now. Could please someone help me with a good advice or solution. Every kind of help is appreciated.

Best regards Helmut

回答1:

Just forget what parser is saying - variable resolution is done at runtime. Parser does not know about that.

回答2:

thanks for your answers. The problem is that I tried to parse the statement in job step. Then I got this error. While running the job there's no problem. My very best solution now is:

declare @JobID uniqueidentifier
SELECT @JobID = $(ESCAPE_NONE(JOBID));
PRINT 'My JobID is  ' + Convert(char(255), @JobID)

Now you handle with @JobID, but as far as I know until now you have to convert always to char(255). Thanks to user state_dba on MSDN.

回答3:

We had trouble with this recently and did not go the route you found in MSDN. Instead, we recovered the jobid from dbo.sysjobs by name directly (the opposite of your example) and then used that within the job to check execution status (exiting out of long running while loop if job state had changed).

declare @jobid uniqueidentifier
SELECT @jobid = job_id from msdb.dbo.sysjobs where name = '[blah]'

回答4:

This may sound obvious, but I get the error you quoted from your first sample, if I run it in a query window, but it runs perfectly well when I paste that script into a job step.

You can only use these tokens within job steps. And, given that we're not expecting any quotes in the jobid token, I'd use ESCAPE_NONE whenever you reference it.

回答5:

For those that need an alternative method to get your own job ID without macros, for example, from within a stored procedure that a job step calls. I found the following here

DECLARE @SQL NVARCHAR(72),
@jobID UNIQUEIDENTIFIER,
@jobName SYSNAME

IF SUBSTRING(APP_NAME(),1,8) = 'SQLAgent'
BEGIN 
    SET @SQL = 'SET @guid = CAST(' + SUBSTRING(APP_NAME(), 30, 34) + ' AS UNIQUEIDENTIFIER)'

    EXEC    sp_executesql @SQL, N'@guid UNIQUEIDENTIFIER OUT', @guid = @jobID OUT

    SELECT  @jobName = name
    FROM    msdb..sysjobs
    WHERE   job_id = @jobID
END

来源：https://stackoverflow.com/questions/4213868/sql-server-agent-get-my-own-job-id

标签

sql-server

sql-agent

sql-agent-job