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Dynamic column names in query

Posted on 2009-05-17
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Last Modified: 2012-05-07
Hi,

I wan to dynamically select columns from a table where the list of column will be provided by a sub query. ie

select (select `columns` from `column_table`) from table

 OR

some thing similar
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Question by:Shahzad Fateh Ali
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3 Comments
 
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Guy Hengel [angelIII / a3] earned 1000 total points
ID: 24405752
that won't work ...
you have to query the column list from the table, and build the sql statement from that.
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by:RiteshShah
RiteshShah earned 1000 total points
ID: 24405875
well, it is not possible with the way you want to do but it is possible if you store column name in variable fist and than generate SELECT statement from that variable. for a hint you can refer my below give article.

http://www.sqlhub.com/2009/03/dynamic-pivot-with-where-condition-in.html

you can see I have stored column name in variable @cols and used it to build SELECT statement.

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