Tally Table

Technical Article

Create a Tally Function (fnTally)

  • Script

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.

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2019-08-13 (first published: )

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SQLServerCentral Article

Tally OH! An Improved SQL 8K “CSV Splitter” Function

  • Article

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).

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2012-12-28 (first published: )

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Question of the Day

Counting Bits II

What is the result of this query in SQL Server 2022+?

select bit_count('7')

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