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CHARINDEX ( N, help?)

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Topic

MelissaTsalicoglou
Starting Member

16 Posts

Posted - 2014-06-04 : 14:12:55

Please can you assist?

What does the N refer to ?
SUBSTRING(contactname, 0, CHARINDEX(N',', contactname)) as lastname

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2014-06-04 : 14:19:56

It is for unicode purposes. If contactname isn't using unicode data type, then it is not needed.

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/

MelissaTsalicoglou
Starting Member

16 Posts

Posted - 2014-06-04 : 14:23:07

thanks very much
therefore the code takes from the first letter up until the comma as the last name?

quote:
Originally posted by tkizer

It is for unicode purposes. If contactname isn't using unicode data type, then it is not needed.

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2014-06-04 : 14:42:06

quote:
Originally posted by MelissaTsalicoglou

thanks very much
therefore the code takes from the first letter up until the comma as the last name?

Yes, typically you'll see 1 instead of 0 for the second parameter for SUBSTRING. CHARINDEX finds the position of the comma.

Tara Kizer
SQL Server MVP since 2007
http://weblogs.sqlteam.com/tarad/

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