“Invalid column name” error on SQL statement from OpenQuery results

Question

I\'m trying to perform a SQL query through a linked SSAS server. The initial query works fine:

SELECT \"Ugly OLAP name\" as \"Value\" 
FROM OpenQuery( OLAP,         


        

Answer 1

Oh, bummer. I just saw, you select AS FOO. Don't you need a HAVING claus in this case?

SELECT whatever AS value FROM table HAVING value > 1;

I still would not use "value". But to be sure, look it up in your docs!

Answer 2

This should work:

SELECT A.Value
FROM (
SELECT "Ugly OLAP name" as "Value" 
FROM OpenQuery( OLAP, 'OLAP Query')
) AS a
WHERE a.Value > 0

It's not that Value is a reserved word, the problem is that it's a column alias, not the column name. By making it an inline view, "Value" becomes the column name and can then be used in a where clause.

Answer 3

You're using "Value" as a column alias, and I don't think the alias can appear in the where clause. It's simply used to name the returned column value. Your where clause should refer to the original column name:

SELECT "Ugly OLAP name" as "Value" 
FROM OpenQuery( OLAP, 'OLAP Query')
WHERE "Ugly OLAP name" > 0

Answer 4

I can vouch for leaving it out of GROUP BY. Good news is, it works just fine being a plain old selected alias.