WHERE IN clause with non-English text fails

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WHERE IN clause with non-English text fails

Author

Topic

LexOccam
Starting Member

1 Post

Posted - 2013-04-15 : 18:08:50

I have a simple table with { Name nvarchar(50), ID (int) } columns in an English (EN-Us) database.

A tester inserts the following Names: ??, öÄéß, ?e?µ

I would like to know why a SELECT statement with a WHERE IN clause only yields one result, even though all values are specified as nvarchar. Thank you.

Example query:

Declare @setOfIds nvarchar(200) = N'''??'',''öÄéß'',''?e?µ'''
Declare @strSql nvarchar(1024)
Set @strSql = N'SELECT Name, ID from MyTable WHERE Name IN (' + @setOfIds + N')'
EXEC (@strSql)

bandi
Master Smack Fu Yak Hacker

2242 Posts

Posted - 2013-04-16 : 00:19:04

-- see this illustration... working fine
CREATE TABLE Names (name NVARCHAR(100))
INSERT INTO Names
SELECT '??'union all
SELECT 'öÄéß' union all
SELECT '?e?µ'
--I would like to know why a SELECT statement with a WHERE IN clause only yields one result, even though all values are specified as nvarchar.

Declare @setOfIds nvarchar(200) = N'''??'',''öÄéß'',''?e?µ'''
Declare @strSql nvarchar(1024)
Set @strSql = N'SELECT Name from Names WHERE Name IN (' + @setOfIds + N')'
EXEC (@strSql)

/*Output:
Name
----------------------------------------------------------------------------------------------------
??
öÄéß
?e?µ
*/

--
Chandu

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-04-16 : 02:28:58

First check if datatype of Name field is nvarchar

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