Jeff Moden

  • Interests: SQL. When Im not having fun with that, then SQL. ;-)

Technical Article

Create a Tally Function (fnTally)

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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Technical Article

Difference between dates with thousands separators

This function calculates the time difference between 2 datetimes and displays the results in the following format:H,HHH,HHH:MM:SSThe return is a 15 character field that is left padded with spaces so that the field becomes right justified.  This makes the colons line up for easy reading.  Commas are automatically added as thousands separators as needed by […]

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2004-03-14

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Question of the Day

Escaping Like I

I have this data in a SQL Server 2022 table:

PlayerIDPlayerNamePlayerStatus
1The \%ChampActive
2The ChampActive
3The_ChampionActive
4The__ChampionActive
5The\_ChampActive
How many rows are returned by this code in SQL Server 2022?
select PlayerName from player
where playername like 'The\_C%' escape '\'
 

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