Changing this alias will result in a duplicate output column name.
TOC
Collapse the table of content
Expand the table of content
The document is archived and information here might be outdated

Changing this alias will result in a duplicate output column name.

The modification you are trying to make will yield a query in which several output columns have the same name. You must explicitly supply unique aliases for each output column.

Show:
© 2016 Microsoft