query using two items

[Mike]

Hi List.

I want to do a query of a shape with polygons that have more than one
item.  One item is "Gemarkung" the other is "Nr". I want to do it like
Gemarkung = " x" and Nr = 19. for example.  I dont know how to do it. I
already did a query using one item which works quite ok and even zooms the
result.
To do the query with two items I have no idea.

Thank you for any help

Mike