Category Archives: T-SQL
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What does it mean that a value is NULL?
11July 14, 2014 by Kenneth Fisher
Let’s start by assuming that ANSI_NULLS are ON. If you aren’t sure what ANSI_NULLS are exactly, don’t worry, I’ll be …
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Dealing with a long string
4June 25, 2014 by Kenneth Fisher
Every now and again you have to put a really long string (more than 8000 characters). Dynamic SQL is the …
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15 years of experience with Identity columns
51June 4, 2014 by Kenneth Fisher
An identity column is an auto incrementing column An identity column is typically used as a primary key A primary …
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What is the difference between Money and Decimal(19,4)
8June 2, 2014 by Kenneth Fisher
One of my co-workers and I were discussing the difference between the data type MONEY and the data type DECIMAL(19,4). …
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Escaping from a runaway Logon trigger
11May 19, 2014 by Kenneth Fisher
Most people know that logon triggers can be dangerous if you aren’t careful. And if you didn’t know, well, logon …
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DBA Myths: TRUNCATE TABLE deletes all the rows of a table instantly.
7April 30, 2014 by Kenneth Fisher
Most DBAs and developers I’ve talked to over the years have felt that TRUNCATE TABLE is an instant DELETE. However …
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The default autogrowth settings do NOT come from the Model database.
5April 28, 2014 by Kenneth Fisher
I recently saw a question about How to inherit autogrowth settings. They commented that while the new database GUI seemed …
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Collation: Confusion
1April 23, 2014 by Kenneth Fisher
I started reading about collations after I had a recent run in with them. As I read I started to …
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Collation: Temporary objects and variables: Demonstration
4April 21, 2014 by Kenneth Fisher
I had a recent run in with collation problems and it got me started reading about them. As I read …
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SQL Studies 