There is often a need to work with time data representing various events and then reporting on them in SQL Server applications. However T-SQL doesn't necessarily make this easy. However new author Joe Lynds brings us an article on some advanced T-SQL to do just that.
2007-08-15
11,499 reads
Summarizing data in a SELECT statement using a GROUP BY clause is a very common area of difficulty for beginning SQL programmers. In Part I of this two part series, we'll use a simple schema and a typical report request to cover the effect of JOINS on grouping and aggregate calculations, and how to use COUNT(Distinct) to overcome this.
2007-08-09
5,253 reads
Robyn and Phil decide to build an RSS newsfeed in TSQL, using the power of SQL Server's XML.
2007-07-31
1,412 reads
Be sure you don't end up with arithmatic errors in your identity columns from a SQL Server MVP.
2007-07-26
2,984 reads
In systems that require, for auditing purposes, advanced logging and reproducibility of reports between runs, a straightforward update, insert, or delete may be counter-productive. In such circumstances, a bitemporal model is necessary
2007-06-04
2,464 reads
One of the very common questions posted about T-SQL is how to traverse a hierarchy in a set based manner. New author Craig Hatley brings us his techniques for handling the common scenario of employees and managers.
2008-05-16 (first published: 2007-06-04)
5,852 reads
COALESCE() accepts a series of values and a value to use in the event that all items in the list are null; then, it returns the first not-null value. This tip describes two creative uses of the COALESCE() function in SQL Server.
2007-06-01
5,777 reads
You can use arithmetic operators in date/time calculations in SQL Server, but sometimes the date/time functions provided by Microsoft are the better option. Follow a few scenarios that demonstrate when arithmetic operators are safe and when they are risky.
2007-05-28
7,463 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
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
By Steve Jones
Note: I DO NOT recommend this. Any changes to a pipeline should be in...
By Steve Jones
symptomania – n. the fantasy that there’s some elaborate diagnosis out there that neatly...
I recently received a complaint that Query Store for a particular database was turned...
Comments posted to this topic are about the item 7 sept, scheduled book
Comments posted to this topic are about the item 7 sept, schedlued article
Comments posted to this topic are about the item 6 sept, published book
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