Friday, May 16, 2008
This blog will move
I hope you will all continue to read my blog on this new address!
Thursday, May 08, 2008
SQL Server 2008 Performance
SQL Server 2008 has not yet been released but nevertheless there are already some test results from the CTP versions. Do note that the performance will probably improve even more when the final product arrives but the results today are already quite amazing. They can be found on https://www.microsoft.com/sqlserver/2008/en/us/benchmarks.aspx.
Apart from the performance improvements you get by installing SQL Server 2008 there has also been a close collaboration with the Windows Server 2008 team giving even better performance. Check out this post which discusses the performance improvement in replication because of the SQL Server 2008 / Windows Server 2008 combination.
This confirms that building on the strengths of SQL Server 2005 was certainly the right decision. For those of you who did not have the time to test Windows Server 2008, grab a server and install it! It offers some great enhancements on many different areas like security, high availability and more. As an extra benefit it has amazing performance. The I/O improvements together with more intelligent scheduling of threads and a rewritten TCP/IP stack make it blazing fast and the best choice for your new SQL Server 2005 and 2008 installations.
Sunday, April 27, 2008
Self-Service Hotfixes
First of all there is the Self-Service hotfix which is explained here. This allows you to download CU's without formally contacting Microsoft Support.
Second of all there is a nice explanation about the new Service Pack approach here. Basically is sums up the ISM model again but the news is that they will include Service Packs into this model too, which means they will also be released on schedule and more often!
Great news and again excellent proof that Microsoft is willing to listen to it's customers.
*NOTE*Self-service: I had to change my country to United States in order to get the download link on top.
Thursday, April 17, 2008
SQL Server 2005 SP2 Cumulative Hotfix Packages and SQL Server 2005 Service Pack 3
The guys @ Microsoft have been busy improving the quality of SQL Server even more.
First of all CU7 was released (Build 3239) here.
As usual this means CU8 has been announced here.
I know there has been a lot of requests from the customers to release Service Pack 3 for SQL Server 2005. Although I see the benefits in the Incremental Servicing Model many people like the "certainty" of a good old service pack. Because Microsoft listens to its customers they have decided to release Service Pack 3 this year. More information can be found here.
Monday, April 14, 2008
Table Variable vs Parallelism
There are many myths surrounding table variables and one of the most common is probably the 'in memory' story. There are however a couple of other interesting facts about temp variables which you should also know about. The guys from the Storage Engine have an excellent post about table variables so you definitely have to read it.
One of the things that caught my eye in the post was the fact that queries do not go parallel when table variables are involved. This was actually something I had never come across so I decided to put it to the test. I borrowed a query from Craig Freedman who has an excellent series on parallelism. Here we go:
CREATE TABLE T (A INT, B INT IDENTITY, C INT, D INT)
CREATE CLUSTERED INDEX TA ON T(A)
SELECT COUNT(*) FROM T OPTION (MAXDOP 0)
UPDATE STATISTICS T WITH ROWCOUNT = 1000000, PAGECOUNT = 100000
SELECT COUNT(*) FROM T OPTION (RECOMPILE, MAXDOP 0)
DECLARE @t AS TABLE
(NumberOfRows int)
INSERT INTO @t
SELECT COUNT(*) FROM T OPTION (RECOMPILE, MAXDOP 0)
For those of you who want to try it with a temp table:
CREATE TABLE #t
(NumberOfRows int)
INSERT INTO #t
SELECT COUNT(*) FROM T OPTION (RECOMPILE, MAXDOP 0)
DROP TABLE #t
Saturday, April 05, 2008
SQL Server Area
Welcome to the blogginghood Egon ;-)
Wednesday, March 19, 2008
How many files should my database have?
As we all know there is only one right answer to all of life's questions and that is: "it depends!".
Lucky for us the guys from the SQLCAT team have taken the time to explain a little how to evaluate how many files you need for specific workloads.
In the first post they talk about OLAP environments and imho this is a must read!
Thursday, March 06, 2008
Techdays 2008 - Belgium
The Techdays (and launch event) are coming pretty close so get ready for some nice sessions about SQL Server 2008, Windows 2008, Visual Studio 2008, Hyper-V and more!
You can always pay me a visit at the Euricom stand. Tip: There will be "champagne" on Thurday ;-)
Wednesday, February 20, 2008
SQL Server 2008 February CTP (CTP6)
Go get it!
Tuesday, February 19, 2008
SQL Server 2005 SP2 Cumulative Hotfix Package 6 - Released
It is out there! The build number is 3228.
http://support.microsoft.com/kb/946608/
Saturday, February 16, 2008
Mainstream support on SQL Server 2000 SP4 & SQL Server 2005 SP1
For more information about this visit the guys from Microsoft SQL Server Release Services.
Tuesday, February 05, 2008
Windows Server 2008 RTM
Monday, February 04, 2008
SQLCAT Site
It is a great source of information for large SQL Server implementations so make sure to check it out!
Monday, January 28, 2008
Remembering Ken Henderson
Update: Ken's sisters have asked for stories about Ken you would like to share. Please check out this post for more information.