Hi Sqlserver experts,
I use the SQL Server enterprise manager of MSSQL 2000 regularly.
I'm often annoyed by the automatic blanking of the table views.
If this happens then mostly with the hint :
"The Results pane have been cleared to conserve server resources.
To re-establish the result set, run query again."
Is there any possibility to switch that blanking off ?
Best regards,
Daniel WetzlerCan't be done. Microsoft has gone as far as to put out a Knowledge
Base article on this feature, with instructions to click 'No' when the
pop-up comes up. Not all that helpful, really.
They've fixed the problem in the new version, so it looks like you'll
remain out of luck.
Jason Kester
Expat Software Consulting Services
http://www.expatsoftware.com/
--
Get your own Travel Blog, with itinerary maps and photos!
http://www.blogabond.com/|||Thank you very much although its really bad news :-(((
Jason Kester schrieb:
Quote: Originally Posted by Can't be done. Microsoft has gone as far as to put out a Knowledge
Base article on this feature, with instructions to click 'No' when the
pop-up comes up. Not all that helpful, really.
>
They've fixed the problem in the new version, so it looks like you'll
remain out of luck.
>
Jason Kester
Expat Software Consulting Services
http://www.expatsoftware.com/
>
--
Get your own Travel Blog, with itinerary maps and photos!
http://www.blogabond.com/ |
|||Daniel Wetzler wrote:
Quote: Originally Posted by Thank you very much although its really bad news :-(((
>
>
Jason Kester schrieb:
> |
Quote: Originally Posted by Can't be done. Microsoft has gone as far as to put out a Knowledge
Base article on this feature, with instructions to click 'No' when the
pop-up comes up. Not all that helpful, really. They've fixed the problem in the new version, so it looks like you'll
remain out of luck. Jason Kester
Expat Software Consulting Services
http://www.expatsoftware.com/
--
Get your own Travel Blog, with itinerary maps and photos!
http://www.blogabond.com/ |
EM locks data when it reads it. That is why MS releases the result set
after X amount of time. You should really use Query Analyzer to look at
data that you do not intend to change.
IMHO -- Mark D Powell --|||Mark D Powell wrote:
Quote: Originally Posted by EM locks data when it reads it. |
I don't think that's the case. I've just created a test table, filled
it with some data and viewed it in EM. I could still update one of the
viewed rows using QA. Once I re-ran the EM query using the exclamation
icon again, the changed row reflected its new state.
Surely the result set clearing is because of the resources consumed by
the open connection, rather than any locking? If I'm wrong, somebody
stop me - to quote Jim Carey.
Quote: Originally Posted by You should really use Query Analyzer |
I agree! It's a much better tool for actually executing queries.|||Bobbo wrote:
Quote: Originally Posted by Mark D Powell wrote:
> |
Quote: Originally Posted by EM locks data when it reads it. |
>
I don't think that's the case. I've just created a test table, filled
it with some data and viewed it in EM. I could still update one of the
viewed rows using QA. Once I re-ran the EM query using the exclamation
icon again, the changed row reflected its new state.
>
Surely the result set clearing is because of the resources consumed by
the open connection, rather than any locking? If I'm wrong, somebody
stop me - to quote Jim Carey.
>
Quote: Originally Posted by You should really use Query Analyzer |
>
I agree! It's a much better tool for actually executing queries.
We have traced data access problems to users accessing data via EM. MS
may have modified some of the logic with SP1, SP2, SP3, and/or SP4 so
that EM works more effectively.
Quote: Originally Posted by |
Quote: Originally Posted by >> |
>From the SQL Server Documentation: Optimizing Query Performance -
SQL Server is essentially a puppet of the client application. The
client application has almost total control over (and responsibility
for) the locks acquired on the server. Although the SQL Server lock
manager automatically uses locks to protect transactions, this is
directly instigated by the query type sent from the client application
and the way the results are processed. Therefore, resolution of most
blocking problems involves inspecting the client application.
A blocking problem frequently requires both the inspection of the exact
SQL statements submitted by the application and the exact behavior of
the application regarding connection management, processing of all
result rows, and so on. If the development tool does not allow explicit
control over connection management, query time-out, processing of
results, and so on, blocking problems may not be resolvable.
Possible cause of problems listed in the above article (these are
things to avoid)
Submitting queries with long execution times
Canceling queries that were not committed or rolled back. [The
application needs to issue a rollback or commit after a query is
cancelled in order to release held locks!]
Applications that are not processing all results to completion
Distributed client/server deadlocks
Locks are held for the length of time needed to protect the resource at
the level requested:
<<
So it depends on how the clients works if one user can cause more
contention than is reasonable. Cursor and especially select for update
cursors can result in unexpected locks waiting. Like I said we tested
and identified a problem, but it was a couple of SP ago.
-- Mark D Powell --
