When most developers think of joins, they think of a.SomethingID = b.SomethingID. This type of join, the equijoin, is vitally important to SQL programming; however, it only scratches the surface of the power of the SQL join. This is the first in a series of articles that will look at several different types of exotic joins in SQL. This article will focus on using the BETWEEN operator in joins when dealing with range-based data.
Manvendra Singh explains how to install SQL Server Agent on SUSE Linux server, so that you can create SQL Server Jobs to schedule repetitive work.
There are times when you look back and times when you look forward in your career. Sometimes, however, we might try to push forward too fast.
Greg Larsen shows you how to use the Transaction ID value to identify the object_id for a deleted table.
“I would educate myself, and that I would never stop educating myself. It was my responsibility to keep learning.” Who said that? Albert Einstein? Da Vinci? Stephen Hawking? None of the above. That statement came from the Demon of the rock band KISS, Gene Simmons. If a rock & roll legend knows that it’s on […]
The old system function IsNumeric() often causes exasperation to a developer who is unfamiliar with the quirks of Transact SQL. It seems to think a comma or a number with a 'D' in the midde of it is a number. Phil Factor explains that though IsNumeric has its bugs, it real vice is that it doesn't tell you which of the numeric datatypes the string parameter can be coerced into, and because it doesn't check for overflow. Phil comes to the rescue with a couple of useful alternatives, one of which works whatever version of SQL Server you have, and which tell you what datatype the string can be converted to.
We show how to use RevolutionR to analyse & visualise purchasing behaviours in AdventureWorksDW2012.
In this article Randy Dyness shows you how to avoid temp tables whenever to maximize the performance of your queries.
By Steve Jones
It was neat to stumble on this in the book, a piece by me,...
Forgive me for the title. Mentally I’m 12. When I started my current day...
By Steve Jones
One of the things a customer asked recently about Redgate Data Modeler was how...
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In SQL Server 2025, what is returned by this code:
SELECT EDIT_DISTANCE('Steve', 'Stan')
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