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jorgen
Starting Member
3 Posts |
 Posted - 2007-06-26 : 06:30:48
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Hi everyone.How do I use a variable to pass a column name for SELECT statement ?I tried:DECLARE @vari VARCHAR(100)set @vari=(SELECT distinct(SELECT COL_NAME(OBJECT_ID('test1'), 1)) from test1)select CAST(@vari as varchar(100)) from test1... but it returns column name instead of values.Notice: test1 is a name of a table I retrieve column name from and then pass it to variableThanks for all suggestions. |
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nr
SQLTeam MVY
12543 Posts |
Posted - 2007-06-26 : 06:46:09
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| exec ('select ' + @colname + ' from tbl where x = ''x''')Can't be bothered to say why this is a bad idea but someone will post links for you.Do a search for dynamic sql.==========================================Cursors are useful if you don't know sql.DTS can be used in a similar way.Beer is not cold and it isn't fizzy. |
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jorgen
Starting Member
3 Posts |
Posted - 2007-06-26 : 07:02:49
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quote:
Originally posted by nr
exec ('select ' + @colname + ' from tbl where x = ''x''')Can't be bothered to say why this is a bad idea but someone will post links for you.Do a search for dynamic sql.
Thanks for your quick reply, but how do I assign the result (using OUTPUT ?) to a variable ? |
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madhivanan
Premature Yak Congratulator
22864 Posts |
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Using variable for select statement