Performance tuning is an art or science, depending on who you talk to. SQL Server guru Joe Sack has authored a book on SQL Server 2005 T-SQL and brings us the performance tuning chapter as a preview.
2007-10-23 (first published: 2006-10-25)
14,563 reads
Joe discusses why he prefers command line tools over GUI, then launches into a how-to about querying sysperfinfo to resolve performance issues. Couple nice sample queries included!
2006-04-21 (first published: 2003-05-14)
32,889 reads
As your SQL Server applications grow, chances are that you have more and more objects, especially stored procedures that you need to keep track of. An organized environment is key to being able to prevent the duplication of code and effort. Joe Sack brings us a look at how he names stored procedures to easy identification.
2005-10-03
25,557 reads
Another great article from Joe Sack that looks at a great technique for generating reports in Excel for your users. Using DTS, you can easily setup an ad hoc or recurring schedule for your users. It's a way to quickly build a report that keeps people happy while making you look like a genius.
2005-09-23 (first published: 2004-05-03)
40,352 reads
Joe has a bunch of small, easy to use scripts that can definitely be the beginning of a great set of monitoring tool. Amazing how much info you can gather with a little bit of code!
2005-05-13 (first published: 2003-06-13)
53,841 reads
Analyzing the data storage in SQL Server databases is a bit of an art. It's a skill that takes some time to develop given that the tools are rather limited. DBCC SHOWCONTIG is one of the few ways in which you can get some insight into how SQL Server has structured your table on the disk. Joe Sack brings us another of his top xxx techniques with his ten queries that you can use to analyze the results of this command.
2004-08-16
23,110 reads
SQL Server showplan is a great tool for analyzing queries and determining whether or not more performance tuning needs to be done. However working with showplan can be confusing and it takes some practice to learn the ins and outs of what is occurring. Joseph Sack looks at showplan and seven of the main things that he is aware of when looking at the results. If you've rarely or never used showplan, this is a great article to get started in learning how an experienced DBA views the output.
2004-07-15
22,299 reads
Directly accessing system tables is discouraged - so what's the alternative? Using the Information Schema should allow you to create code that survives upgrades. Beyond that, what can you do with it? Joe has four great examples to get you started.
2003-09-18
14,742 reads
Joseph recently had to upgrade a server from 4g to 8g of memory. Read how he did it and learn about some interesting aspects of AWE. For example, if you have 6.5g configured for use by SQL, how will task manager show used by sqlserver.exe?
2003-04-16
23,921 reads
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Which number did the two COUNT(*) return:
DROP TABLE IF EXISTS #tmp CREATE TABLE #tmp (id INT NOT NULL) INSERT INTO #tmp (id) SELECT gs.value FROM GENERATE_SERIES(1, 5) AS gs ALTER TABLE #tmp ADD my_value INT NOT NULL CONSTRAINT df_tmp_my_value DEFAULT 1 SELECT COUNT(*) FROM #tmp AS t WHERE my_value = 1 ALTER TABLE #tmp DROP CONSTRAINT df_tmp_my_value ALTER TABLE #tmp ADD CONSTRAINT df_tmp_my_value DEFAULT 2 FOR my_value SELECT COUNT(*) FROM #tmp AS t WHERE my_value = 1See possible answers