Matching allows you to do what inquiry does not allow: to have in the same query several data sources coming from several databases.
When the matching type is selected, the choice of the data source is grayed out, as well as the checkbox for time out and automatic disconnection.
At the time of data source selection, no table can be selected, only queries.
Here again, the screen differs from the inquiry (see field selection).
The rest of the screen is similar.
The following screens of the inquiry are absent when creating a matching :