Fabiano Amorim Query Optimizer and Cartesian Products In his continuing quest to bring a deeper understanding of Query Optimizer to the world at large, Fabiano takes a... 22 October 2009 5 min read
Fabiano Amorim Data Correlation Optimization Internals Having adroitly introduced us, in his previous article, to the Date Correlation ability of the Query Optimizer, Fabiano discusses the... 14 October 2009 10 min read
Jacob Sebastian The Art of XSD – eBook Download When information is exchanged in XML format, you need an agreement between the sender and receiver about the structure and... 07 October 2009 1 min read
Robert Sheldon Using Information Schema Views Many seasoned database developers tuck away all the commonly-used INFORMATION_SCHEMA queries as templates. They're an indispensable supplement to sp_help and... 01 October 2009 13 min read
Fabiano Amorim The Query Optimizer: Date Correlation Optimisation In SQL Server 2005, a feature was introduced that was hardly noticed, but which might make a great difference to... 01 October 2009 10 min read
Joe Celko Celko’s SQL Stumper: The Data Warehouse Problem Joe Celko comes back with a puzzle that isn't new, but one where the answer he originally gave now seems... 25 September 2009 5 min read
Joe Celko Causation, Correlation and Crackpots Joe Celko explores the dangers of muddling correlation and causation, emphasises the importance of determining how likely it is that... 15 September 2009 13 min read
Robert Sheldon Transact-SQL Formatting Standards (Coding Styles) How should SQL code be formatted? What sort of indentation should you use? Should keywords be in upper case? How... 25 August 2009 25 min read
Joe Celko Getting rid of SQL Code Joe becomes intrigued by the way that experts make errors in any area of technology, and suggests that the problem... 20 August 2009 13 min read
Plamen Ratchev Ten Common SQL Programming Mistakes It is not always easy to spot "antipatterns" in your SQL, especially in more complex queries. In this article, Plamen... 20 August 2009 28 min read
Joe Celko Celko’s Summer SQL Stumpers: Prime Numbers Joe Celko kicks off our series of Summer SQL Stumpers with a challenge to improve on his solution to calculating the... 23 July 2009 6 min read
Joe Celko Avoiding the EAV of Destruction A forum posting, from someone who wanted a better solution to the common problem of handling global settings in a... 18 June 2009 11 min read
Robert Sheldon XML Data Modification Language Workbench XML Data Modification Language (XML DML) allows you to modify and update XML data. When working with SQL Server Databases,... 28 April 2009 21 min read
Phil Factor CLR Assembly RegEx Functions for SQL Server by Example Phil Factor presents a simple CLR Assembly to allow SQL Server users to access all the powerful RegEx library methods... 15 April 2009 15 min read
Joe Celko Median Workbench SQL Server database engine doesn't have a MEDIAN() aggregate function. This is probably because there are several types of median,... 05 April 2009 15 min read
Alex Kuznetsov Brain Teaser for Pi Day Alex has come up with a great idea for Pi Day. We should celebrate by trying to come up with... 02 March 2009 2 min read
Joe Celko Divided We Stand: The SQL of Relational Division Businesses often require reports that require more than the classic set operators. Surprisingly, a business requirement can often be expressed... 17 February 2009 17 min read
András Belokosztolszki Removing Duplicates from a Table in SQL Server Sometimes, in SQL, it is the routine operations that turn out to be the trickiest for a DBA or developer.... 11 February 2009 13 min read
Phil Factor The TSQL of Text Files Phil returns to the old subject of 'Getting text-based data in and out of SQL Server'. He shows various easy... 19 January 2009 15 min read
Joe Celko Temporal Data Techniques in SQL In the first part of this series on Temporal Data, Joe explained how it is that the Common Era calendar... 18 January 2009 12 min read
