Guest Columnist: Peter He

Views are handy constructs for abstracting security and simplfying queries, but they can have unexpected results sometimes. Longtime DBA Peter He takes a look at subquery issues in views.  Read more...

SQL Server 2005 brings a new feature to T-SQL with Common Table Expressions, which make it possible for more complex subquery expressions than in previous versions. Recursion is a common use and Peter He takes a look at how well these new structures perform.   Read more...

The scheduling system in SQL Server is quite flexible and powerful, but can be confusing at times. Peter He looks at some of the advanced options you have in automating the various jobs on your server.   Read more...

SQL Server 2000 has table valued functions that are very useful in many ways. However when you try to limit results with the ROWCOUNT setting, you can end up with some strange results. Peter He brings us a comprehensive look at some of the unpredictable results that you can get and how to code around them.   Read more...