How do I return column headers when there are no rows returned with Invoke-Sqlcmd?

Question

When executing a query using Invoke-Sqlcmd, if no rows are returned, the result is just $null.

I wondering if it's possible to still return the column headers, but with no data. This would make it consistent with a query which did return rows.

Is there an easy way to do this?

Answer 1

If you get a null back try this query:

select [COLUMN_NAME] from information_schema.columns where TABLE_NAME='TABLENAME' 

Answer 2

Check for $null - if $null then call this query:

   set fmtonly on
   select * from yourTable where 1=0