It is looking increasingly like I'll have to go live before I have had the time to tweak all the queries/tables etc, before I go live with a website (already 6 months behind schedule, so all though this is not the ideal scenario - thats how things are). Its now a case of having to bite the bullet. Its just a case of trying to work out h...
For some reason I can't get DTA to connect to my development machine. It connects to a remote DB just fine but when I point it to my dev machine I get an error saying: Failed to initialize MSDB database for tuning (exit code: -1073741819). I'm pretty sure it's not a permissions issue since I've used profiler to capture what it's doing ...
I am parameterizing my web app's ad hoc sql. As a result, I expect the query plan cache to reduce in size and have a higher hit ratio. Perhaps even other important metrics will be improved. Could I use perfmon to track this? If so, what counters should I use? If not perfmon, how could I report on the impact of this change? ...
Hi, I’m working on tuning and increasing the performance of my IBM DB2 version 9.7 database. I’ve been searching around the net for the last couple of days and learned that if I created my tables in COMPRESS mode and created one more bufferpool and set both of them to access 1024mb, then the performance in my queries should increase bec...
Hi, I've a python script which works just as it should but I need to write the time for the execution. I've gooled that I should use timeit but I can't seem to get it to work. My Python script looks like this: import sys import getopt import timeit import random import os import re import ibm_db import time from string import maketran...
We're using a Oracle Text CTXSYS.CONTEXT index to index about half a million rows containing metainformation. The information is spread over two tables that are combined by a procedure that the indexer calls at runtime (functional index). When I run the CREATE INDEX on my local machine (simple dualcore notebook) the index is built in ab...
Based on information I have read about the "exec sp_reset_connection" which appears in SQL Server Profiler trace data when connection pooling exists, it seems safe--or logical, rather--to remove/exclude it from trace data to be considered by the Database Tuning Advisor. Any thoughts or objections? ...
I am not sure if this question can be asked here or serverfault. I was wondering...Is there is a way to quickly undo the changes made by SQL Server 2005 Tuning Advsor other than recovering from a backup? ...