Shift + F9 will toggle between field codes and results.
performs calculations on the values in a field and displays the results in a datasheet
how to hide field codes
field codes
field codes
a default value
A field
When utilizing the DAGR, the field that automatically displays the waypoint datum is the "Dat" field, which stands for datum. The datum represents the reference point used to define the location coordinates of the waypoint.
Field studies are studies that focuses on a particular subject, they can be really about any subject at all that displays data.
field results
table area
As long as the field is not listed as part of the SELECT clause, it will not appear in the results.
Link.