Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
sysindexes impact performance on update, delete or insert?
Any answer will be helpful.
Thanks
Tarlo
No, These are not indexes, they don't have a b-tree associated with them, don't store any data.
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
http://www.sqlug.se/
"Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
> sysindexes impact performance on update, delete or insert?
> Any answer will be helpful.
> Thanks
> Tarlo
|||Thanks a bunch it helps.
Regards
Tarlo
"Tibor Karaszi" wrote:
> No, These are not indexes, they don't have a b-tree associated with them, don't store any data.
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
> http://www.sqlug.se/
>
> "Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
> news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
>
>
Showing posts with label statistics. Show all posts
Showing posts with label statistics. Show all posts
Thursday, March 22, 2012
_WA_SYS% indexes
Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes i
n
sysindexes impact performance on update, delete or insert?
Any answer will be helpful.
Thanks
TarloNo, These are not indexes, they don't have a b-tree associated with them, do
n't store any data.
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
http://www.sqlug.se/
"Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes
in
> sysindexes impact performance on update, delete or insert?
> Any answer will be helpful.
> Thanks
> Tarlo|||Thanks a bunch it helps.
Regards
Tarlo
"Tibor Karaszi" wrote:
> No, These are not indexes, they don't have a b-tree associated with them,
don't store any data.
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
> http://www.sqlug.se/
>
> "Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
> news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
>
>
n
sysindexes impact performance on update, delete or insert?
Any answer will be helpful.
Thanks
TarloNo, These are not indexes, they don't have a b-tree associated with them, do
n't store any data.
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
http://www.sqlug.se/
"Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes
in
> sysindexes impact performance on update, delete or insert?
> Any answer will be helpful.
> Thanks
> Tarlo|||Thanks a bunch it helps.
Regards
Tarlo
"Tibor Karaszi" wrote:
> No, These are not indexes, they don't have a b-tree associated with them,
don't store any data.
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
> http://www.sqlug.se/
>
> "Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
> news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
>
>
_WA_SYS% indexes
Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
sysindexes impact performance on update, delete or insert?
Any answer will be helpful.
Thanks
TarloNo, These are not indexes, they don't have a b-tree associated with them, don't store any data.
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
http://www.sqlug.se/
"Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
> sysindexes impact performance on update, delete or insert?
> Any answer will be helpful.
> Thanks
> Tarlo|||Thanks a bunch it helps.
Regards
Tarlo
"Tibor Karaszi" wrote:
> No, These are not indexes, they don't have a b-tree associated with them, don't store any data.
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
> http://www.sqlug.se/
>
> "Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
> news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> > Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
> > sysindexes impact performance on update, delete or insert?
> >
> > Any answer will be helpful.
> >
> > Thanks
> >
> > Tarlo
>
>
sysindexes impact performance on update, delete or insert?
Any answer will be helpful.
Thanks
TarloNo, These are not indexes, they don't have a b-tree associated with them, don't store any data.
--
Tibor Karaszi, SQL Server MVP
http://www.karaszi.com/sqlserver/default.asp
http://www.solidqualitylearning.com/
http://www.sqlug.se/
"Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
> sysindexes impact performance on update, delete or insert?
> Any answer will be helpful.
> Thanks
> Tarlo|||Thanks a bunch it helps.
Regards
Tarlo
"Tibor Karaszi" wrote:
> No, These are not indexes, they don't have a b-tree associated with them, don't store any data.
> --
> Tibor Karaszi, SQL Server MVP
> http://www.karaszi.com/sqlserver/default.asp
> http://www.solidqualitylearning.com/
> http://www.sqlug.se/
>
> "Tarlo" <Tarlo@.discussions.microsoft.com> wrote in message
> news:500DE04C-0239-49B3-BD6C-6B90D44D6C1A@.microsoft.com...
> > Does _WA_SYS%(I understand these are optimizer statistics indexes) indexes in
> > sysindexes impact performance on update, delete or insert?
> >
> > Any answer will be helpful.
> >
> > Thanks
> >
> > Tarlo
>
>
_WA Statistics Error
Hello,
We have had a problem with a table recently where a load had stopped half
with through with an index problem.
After a bit of delving the problem seems to be causes by the system created
Statisitcs for a particial index or at least thats where the error message i
s
pointing to.
The database is set to auto update the statistics and we use this table to
do a lot of loads, truncates and deletes.
My question is this, has anyone seen a problem created by the System created
statisitics and what was the fix.
TIA
PatriciaParticia
What's version are you using?
Havu you ran DBCC SHOW_STATISTICS?
Also take a look at sp_createstats system stored procedure
"Patricia" <Patricia@.discussions.microsoft.com> wrote in message
news:2E80BF08-3146-4749-8142-CC7A7BC1F56D@.microsoft.com...
> Hello,
> We have had a problem with a table recently where a load had stopped half
> with through with an index problem.
> After a bit of delving the problem seems to be causes by the system
> created
> Statisitcs for a particial index or at least thats where the error message
> is
> pointing to.
> The database is set to auto update the statistics and we use this table to
> do a lot of loads, truncates and deletes.
> My question is this, has anyone seen a problem created by the System
> created
> statisitics and what was the fix.
> TIA
> Patricia
We have had a problem with a table recently where a load had stopped half
with through with an index problem.
After a bit of delving the problem seems to be causes by the system created
Statisitcs for a particial index or at least thats where the error message i
s
pointing to.
The database is set to auto update the statistics and we use this table to
do a lot of loads, truncates and deletes.
My question is this, has anyone seen a problem created by the System created
statisitics and what was the fix.
TIA
PatriciaParticia
What's version are you using?
Havu you ran DBCC SHOW_STATISTICS?
Also take a look at sp_createstats system stored procedure
"Patricia" <Patricia@.discussions.microsoft.com> wrote in message
news:2E80BF08-3146-4749-8142-CC7A7BC1F56D@.microsoft.com...
> Hello,
> We have had a problem with a table recently where a load had stopped half
> with through with an index problem.
> After a bit of delving the problem seems to be causes by the system
> created
> Statisitcs for a particial index or at least thats where the error message
> is
> pointing to.
> The database is set to auto update the statistics and we use this table to
> do a lot of loads, truncates and deletes.
> My question is this, has anyone seen a problem created by the System
> created
> statisitics and what was the fix.
> TIA
> Patricia
_WA Statistics Error
Hello,
We have had a problem with a table recently where a load had stopped half
with through with an index problem.
After a bit of delving the problem seems to be causes by the system created
Statisitcs for a particial index or at least thats where the error message is
pointing to.
The database is set to auto update the statistics and we use this table to
do a lot of loads, truncates and deletes.
My question is this, has anyone seen a problem created by the System created
statisitics and what was the fix.
TIA
PatriciaParticia
What's version are you using?
Havu you ran DBCC SHOW_STATISTICS?
Also take a look at sp_createstats system stored procedure
"Patricia" <Patricia@.discussions.microsoft.com> wrote in message
news:2E80BF08-3146-4749-8142-CC7A7BC1F56D@.microsoft.com...
> Hello,
> We have had a problem with a table recently where a load had stopped half
> with through with an index problem.
> After a bit of delving the problem seems to be causes by the system
> created
> Statisitcs for a particial index or at least thats where the error message
> is
> pointing to.
> The database is set to auto update the statistics and we use this table to
> do a lot of loads, truncates and deletes.
> My question is this, has anyone seen a problem created by the System
> created
> statisitics and what was the fix.
> TIA
> Patricia
We have had a problem with a table recently where a load had stopped half
with through with an index problem.
After a bit of delving the problem seems to be causes by the system created
Statisitcs for a particial index or at least thats where the error message is
pointing to.
The database is set to auto update the statistics and we use this table to
do a lot of loads, truncates and deletes.
My question is this, has anyone seen a problem created by the System created
statisitics and what was the fix.
TIA
PatriciaParticia
What's version are you using?
Havu you ran DBCC SHOW_STATISTICS?
Also take a look at sp_createstats system stored procedure
"Patricia" <Patricia@.discussions.microsoft.com> wrote in message
news:2E80BF08-3146-4749-8142-CC7A7BC1F56D@.microsoft.com...
> Hello,
> We have had a problem with a table recently where a load had stopped half
> with through with an index problem.
> After a bit of delving the problem seems to be causes by the system
> created
> Statisitcs for a particial index or at least thats where the error message
> is
> pointing to.
> The database is set to auto update the statistics and we use this table to
> do a lot of loads, truncates and deletes.
> My question is this, has anyone seen a problem created by the System
> created
> statisitics and what was the fix.
> TIA
> Patricia
Subscribe to:
Posts (Atom)