Re: lock operation locked more than one row issue!
Re: lock operation locked more than one row issue!
- Subject: Re: lock operation locked more than one row issue!
- From: Chuck Hill <email@hidden>
- Date: Wed, 27 May 2009 11:54:11 -0700
Hi Fred,
On May 27, 2009, at 11:29 AM, Fred Wells wrote:
OK, so after trying several different drivers and all throw some
type of locking error either lock failed to retrieve any rows or
lock operation locked more than one row.
It is not the driver. Really, it is not.
It is the SQL that EOF is generating. It is generating the WRONG
SQL. That is the problem that you need to solve. The error you are
seeing is just a symptom of the problem. You need to fix the problem.
Right now I'm just looking for any more ideas as to where look for a
possible cause on this. The EOModel files seem to be fine
I'd be pretty suspicious that they are not. Are you using any data
types in this table that you don't use elsewhere? CLOBs? BLOBs?
I can't find anythign out of the ordinary I'm not sure where else to
look or if there are any parameters that can be changed to alter how
locking is handled.
It is either in the model definition or in your code. Or, I suppose,
both. You may be hitting a bug in EOF, but it is your model or code
that is exposing it.
Chuck
Frederick Wells
MarketForward, a Publicis Groupe Company
427 South LaSalle St.
Chicago, Il 60605
312.220.3056
-----Chuck Hill <email@hidden> wrote: -----
To: Guido Neitzer <email@hidden>
From: Chuck Hill <email@hidden>
Date: 05/26/2009 07:18PM
cc: Development WebObjects <email@hidden>, Fred
Wells <email@hidden>
Subject: Re: lock operation locked more than one row issue!
On May 26, 2009, at 5:13 PM, Guido Neitzer wrote:
> On May 26, 2009, at 1:37 PM, Chuck Hill wrote:
>
>> I am not sure what you have done then. The problem is not that it
>> is selecting multiple rows. The problem is that it is trying to
>> lock rows:
>>
>>> > > SELECT ... FROM TemplateTask t0 WITH (UPDLOCK, ROWLOCK)"
>>
>>
>> EOF should not be doing that, that is optimistic^H^H^H^H^H^H^H^
>> pessimistic locking. Something has confused EOF which causes it to
>> do this (it is a bug).
>
> Do you have to tell the plugin that explicitly? Never used MS SQL.
No, you don't. It is bad, but not that bad. ;-)
Chuck
--
Chuck Hill Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
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Chuck Hill Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
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