Usergroup meeting last night

The slides and demos for Darren’s session can be found here http://www.sqlis.com/post/SSIS-Tips-Tricks-(Presentation).aspx

 

For the list of events coming up go to http://sqlserverfaq.com

 

Here are some answers to the Q&A asked at the start,

 

Replication file sizes

From my investigation the multiple files produced in the snapshot are based on the statistics for the primary key column, base on rows. If your rows have differing sizes i.e. contain different size documents, or your statistics are out of date then you could end up with different size files. The numbers of rows will always be different because the values used to segment the data are those in the statistics and they might not fall on the exact boundary. Look at the output from DBCC SHOW_STATISTICS (table,pk_constraint)

 

WMI security

There is a great section in MSDN on WMI remote access http://msdn.microsoft.com/en-us/library/aa389290(VS.85).aspx

As expected there are a number of aspects including. WMI uses RPC, this uses port 135 which is a common security flaw and used by many viruses including Nimda, CodeRed and Slammer(http://us.trendmicro.com/us/threats/enterprise/glossary/n/network-viruses/index.php).  Or DCOM permissions might not allow remote uses to start the WMI service.

The section in MSDN should help you through the issues.

 

A big thank you to Redgate for sponsoring the event and I hope to see you again

 


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Published 21 May 2009 13:08 by simonsabin

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