Many people have published high performance, read-less, Inline Table Valued functions that use Itzik Ben-Gan's wonderful "Virtual Numbers Table" to replace WHILE loops and other forms of RBAR. This one is Jeff Moden's version.
2019-08-13 (first published: 2019-08-04)
7,379 reads
A fast table valued function to generate a list of prime numbers within the range specified by the parameters.
2017-04-12 (first published: 2017-03-30)
412 reads
An article about tally tables, N-Grams and the fastest character-level N-Grams function available today for SQL Server.
2018-11-22 (first published: 2016-06-23)
15,721 reads
2016-04-01 (first published: 2016-03-23)
852 reads
2013-06-13 (first published: 2013-05-30)
2,915 reads
The Tally Table has proven to be a simple and elegant method for avoiding many varieties of RBAR. Unfortunately, one of its more common uses, that of a CSV splitter, has a well-known and serious performance problem. MVP Jeff Moden shows us what that problem is and how to correct it. (UPDATED with additional info and attachments on 5/12/2011).
2012-12-28 (first published: 2011-05-02)
139,530 reads
In part II of this series, Sioban Krzywicki shows us another way Tally Tables have helped solve problems - Text Parsing.
2010-08-03
9,312 reads
In the first part of a series on Tally Tables, Sioban Krzywicki shows how a Tally Table has helped out with fiscal year calculations.
2010-08-02
16,303 reads
By Rayis Imayev
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I recently encountered an interesting issue with ADF where the publish feature suddenly attempted...
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I am trying to analyze a number of columns in a large table to determine the highest value for each row. In SQL Server 2022, we have the GREATEST function, which will return the greatest value from those columns passed in. How many columns can I include in an expression like this:
select GREATEST( col1, col2, col3, ...)See possible answers