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
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Jul 15, 2014
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The Marginalization of SQL Server Standard Edition 5

Microsoft seems to be bent on marginalizing SQL Server Standard Edition—both in the sense of the artificial constraints placed upon how much memory it can use, and in terms of what seems to be a shift in focus on the role of Standard Edition from Microsoft....More
Jul 8, 2014
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Replication: Sometimes More is Less

The unconventionality of having two publications for complex, unruly databases typically ends up saving huge amounts of time over the long haul and makes replication much easier to manage....More
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Jun 24, 2014
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AlwaysOn Availability Groups and Third Party Log Readers

When DBAs and SysAdmins learn the ins-and-outs of AlwaysOn Availability Groups, they’re then able to address high availability and disaster recovery concerns from a single interface or set of tooling, thus providing better scalability of management....More
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