Performance Counters to Monitor for SQL
I would suggest once a quarter, set up a performance monitor log to collect the following counters for a couple of 24 hour periods. Look at the results in both a graph and report forms to determine...
View ArticleSQL 2005 – Script to find missing indexes
SET CONCAT_NULL_YIELDS_NULL OFF SELECT weighted_cost = avg_total_user_cost * avg_user_impact * (user_seeks + user_scans), s.*, 'CREATE INDEX IX_' + REPLACE(REPLACE(COALESCE(equality_columns,...
View ArticleSQL Database Data File Growth Performance Impact
I was On call this week and one of our databases files became over 90% full. This is the threshold we set to alert us to manually expand any file. We have autogrowth just in case, but we want to...
View ArticleScript for Generating Random Data
I often need to fill up tables with random data to test data conversion scripts, foreign keys, indexes, etc. Here’s my “Go To” script for coming up with random data. I usually base it off this and...
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Big Trys and Small Trans
The catch phrase around the office these days is “Big Trys and small Trans.” This came about as we were review stored procedure changes and I two suggestions. First, that the entire procedure has a...
View ArticleRandom Data – Part 2
A few years ago I found this procedure on SQLServerCentral – I believe (but I can’t find it today) – it creates a random password with options for upper case, lower case, special characters and...
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10 Things Running and SQL Have In Common
I’m a runner as well as a DBA. I’ve got a marathon this weekend, so I started thinking about how SQL and running are similar. Small issues in your mechanics will show up later when performance is...
View ArticleIndex Usage with Row Counts
I got into a bit of a situation today. There were some performance issues in our performance testing environment and my changes (and a few others) were finally being tested. I was also told by...
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