petkovic petkovic

petkovic
petkovic

Dusan Petkovic is professor of database systems at the Polytechnic in Rosenheim, Germany. He is the author of several books about database systems, including SQL Server 2005: A Beginner’s Guide (Osborne McGraw-Hill). Through a special arrangement with Osborne/McGraw-Hill, we invite you to preview a chapter from Dusan's new book on SQL Server Security Email address: petkovic@fh-rosenheim.de

Articles
Open Windows of Opportunity
Aggregate and rank window functions benefit BI projects.
Taming the Skew 1
SQL Server's query optimizer effectively executes queries that access skewed data, but you can help improve the response time of such queries. Here's how.
Indexing for Sort Performance
Defining the right indexes on sort columns can yield dramatic performance results for queries that need ordered data.
Which is Faster: Index Access or Table Scan? 1
It can be difficult to determine whether a table scan or an index will provide better query performance. The answer depends in part, on the percentage of rows returned, but another important factor is whether you use a clustered or nonclustered index.
New Features for Query Processing
The query processor is one of the most important database system components that influence the management of large databases. SQL Server 7.0's focus is on new techniques for maximizing your query performance.

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From the Blogs
Dec 16, 2014
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Eight SQL Server Signs the Illuminati Exist

Make no mistake about it, the signs that the Illuminati exist are all around us. You can find their markings on our buildings, on our currency and even in our music videos. That’s right, they’re everywhere!...More
Dec 2, 2014
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AlwaysOn Availability Groups and SQL Server Jobs, Part 16: Job Synchronization Checkup Logic

With Linked Servers configured to allow cross-host or cross-box communication between the servers you’re using to host your AlwaysOn Availability Groups, it’s time to start looking at some scripts that can be used to regularly check whether or not SQL Server Agent jobs are correctly synchronized across all servers in your topology....More
Abstract illustration of linked SQL Servers
Nov 18, 2014
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AlwaysOn Availability Groups and SQL Server Jobs, Part 15: Setting Up Linked Servers

Learn about setting up Linked Server definitions to let two (or more) servers in an AlwaysOn Availability Group talk to each other and check up on job statuses of jobs running on each other....More
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