Category Archives: T-SQL

  1. HAL0004 – I don’t feel well Dave

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    June 29, 2020 by Kenneth Fisher

    It’s another HAL! Every once in a while (4 times now) I come up with a terrible terrible idea for …
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  2. I created a table and SQL created a schema and a user.

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    June 22, 2020 by Kenneth Fisher

    Demo first and then I’ll explain what happened. First thing I did was run this script: CreateUsers.bat It’s a quick …
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  3. End an ALTER DATABASE immediately if anyone is in the database.

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    June 11, 2020 by Kenneth Fisher

    The development team has told me they’ve shut down the application, there are no more connections and I can go …
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  4. Use session_context to create a “variable” that lasts between batches.

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    May 26, 2020 by Kenneth Fisher

    The other day I had a brief conversation with Itzik Ben-Gan (about|twitter) on twitter and I have to tell you …
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  5. Negative (-) is an operator and will affect the order of operations.

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    May 18, 2020 by Kenneth Fisher

    An interesting question came to my attention the other day. A strange operation problem in SQL Server: -100/-100*10 = 0 …
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  6. Explain CROSS APPLY like I’m 5.

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    May 11, 2020 by Kenneth Fisher

    A good friend of mine (Randolph West (blog|twitter) asked that someone Explain CROSS APPLY like they are 5. So, here’s …
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  7. Is there an easy way to tell what pricing tier my Azure SQL DB/DW is using T-SQL?

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    April 22, 2020 by Kenneth Fisher

    I ran into an interesting problem today. I needed to find out the pricing tier of an Azure SQL DB …
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  8. What is the datatype SQL_VARIANT

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    April 16, 2020 by Kenneth Fisher

    The SQL_VARIANT data type is an interesting beast. It is a data type that can store most types of data. …
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  9. Why you should never use default string lengths.

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    March 25, 2020 by Kenneth Fisher

    TL;DR; You probably don’t know what you’re going to get. Even if you do know the person maintaining your code …
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  10. DROP IF EXISTS

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    March 23, 2020 by Kenneth Fisher

    It’s amazing the things that SQL can do these days. It’s also amazing how many of them I’ve managed to …
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ToadWorld Pro of the Month November 2013