Question

I want to ask you if is possible to declare a constant in SQL Server which provides the column name ?

means something like this :

declare @column varchar(30)
set @column = 'Column1'

SELECT @column FROM Table1

I know that above declaration is wrong but maybe is a solution to provide yourself the column name.

I want to show results for Column1 but if Column1 is inside ” then will return with (No column name) additional column name and the results on all rows will be Column1.

Thank you

Answer 1

You can’t use dynamic column names in SQL.

To do so, you need to use dynamic SQL. I suggest reading The Curse and Blessings of Dynamic SQL by Erland Sommarskog for a complete view on this issue – the article is long but comprehensive.

The use of dynamic SQL can expose you to SQL injection, so use with care.