Wednesday, March 7, 2012

Fast updates in SQL Server

Hi
In Oracle there is a concept that allows one to perform an update without
using the rollback logs so you can try to improve the performance of an
update. Does such functionality exist in SQL Server 2000? I cannot seem to
find anything on it in BOL
Thanks
NHi
In SQL Server every DML operations are logged. If you explain us a little
bit more about your requiremnts we will be able to help you .
How much data are you going to update?
Do you have any indexes defined on the table?
"Nesaar" <nesaarATprescientdotcodotza> wrote in message
news:%23GNz2I$HGHA.3936@.TK2MSFTNGP12.phx.gbl...
> Hi
> In Oracle there is a concept that allows one to perform an update without
> using the rollback logs so you can try to improve the performance of an
> update. Does such functionality exist in SQL Server 2000? I cannot seem to
> find anything on it in BOL
> Thanks
> N
>
>|||Look at this thread there, for some operations there is a minimized
transaction protocol, like TRUNCATE. Other details were discussed in
here:
http://www.mcse.ms/archive89-2005-2-1441624.html
HTH, jens Suessmeyer.|||He has a temp table that has about 25 million rows in it. This is joined to
a transaction table with about 110 million rows on it. The transaction table
has a clustered index and a few other indexes as well.
I have just told the developer he should create an index on his temporary
table for the columns he is joining on as a first step to try and increase
performance.
Thanks
N
I've created a temp table to store transactions (+-25mill rows)
then it joins from there onto our transaction table (110 mill rows; lots of
indexes) to update.
"Uri Dimant" <urid@.iscar.co.il> wrote in message
news:uhRnAM$HGHA.3700@.TK2MSFTNGP15.phx.gbl...
> Hi
> In SQL Server every DML operations are logged. If you explain us a little
> bit more about your requiremnts we will be able to help you .
> How much data are you going to update?
> Do you have any indexes defined on the table?
>
>
> "Nesaar" <nesaarATprescientdotcodotza> wrote in message
> news:%23GNz2I$HGHA.3936@.TK2MSFTNGP12.phx.gbl...
without
to
>

No comments:

Post a Comment