Francis Norton shows how to use regular expressions to fulfil some real world data validation requirements, demonstrating techniques ranging from simple number format checks, to complex string validation that requires use of regex's powerful "lookahead" feature.
2007-05-22
3,865 reads
Chess makes a fantastic game for programming examples. You will find hundreds of examples on the internet. Some dedicated to OO patterns, others to algorithms and so forth. Unfortunately, most of these examples do not use a database or if they do, treat the database as nothing more than a storage repository. In this series of articles we will use SQL Server and T-SQL to implement the game of chess with an emphasis on thinking in sets.
2007-05-21
5,228 reads
We're pleased to announce that Robert will be writing for us each month - generally on stored procedures, but occasionally on a different topic. This article discusses how nesting stored procedures works and how to use @@NextLevel. Good reading! If there is a stored procedure topic you'd like to see covered, add a comment to the article or email us at articles@sqlservercentral.com
2007-05-18 (first published: 2003-05-23)
53,723 reads
Robyn Page and Phil Factor take on GROUP BY queries in SQL server, starting on the nursery slopes but finishing with a wild ride off-piste.
2007-05-18
2,426 reads
Maintenance Plan Designer gives you access to 11 tasks, which allow you to perform a variety of database management activities. This article provides a brief overview of each of them, focusing on their recent improvements.
2007-05-17
2,903 reads
Sql Server comes with a host of built in functions such as ISNULL, CONVERT and CAST. Now if that wasn't enough rope to hang ourselves with, as of Sql Server 2000 we gained the ability to create our own user defined functions. In this article I will be looking at the three main date functions DATEADD, DATEPART and DATEDIFF (there is a fourth called DATENAME but I want to get to the end of this article before you fall asleep so I decided to leave it for another date and time! And no it doesn't foretell the name of your future blind date so it's not as interesting as it sounds anyway) Then I will be combining all three in a user defined function of our own by which time our necks will be well and truly stretched
2007-05-15
2,831 reads
An updated version of xp_sql2exchange is now available, enabling you to publish SQL Server data easily to an exchange server. Read about this very cool extended stored procedure from author Steve Boriotti.
2007-05-14
12,052 reads
Michael M. David returns to SQLSummit.com to explore two approaches to XML hierarchical structure transformations. He explains the difference between restructuring and reshaping XML data, with the latter driven by the semantics of the data structure.
2007-05-14
1,954 reads
Phil Factor's describes his first encounter with the "light arms" (low calibre, small bore, needed to be fired).
2007-05-11
3,478 reads
Steve Jones is in Seattle for the first Microsoft BI Conference and offers some thoughts on the event.
2007-05-10
2,685 reads
By Steve Jones
This is timely, as I’m currently on a boat in the Adriatic taking a...
You can find the slides and SQL scripts for my session “Spice up your...
By SQLPals
How to Clear the SSMS Cache (SSMS 21 and Later) Updated...
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Comments posted to this topic are about the item PostgreSQL psql Meta Commands: Databases
Which of the following meta commands (sometimes called backslash or slash commands) within psql will provide you with information about the databases on the cluster?
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