Use the Name edit box to set the check name.
Check
Set the condition for checking, e.g. "field_name1 > 0 AND field_name2 > field_name1" in the Check edit box.
A check constraint specified as a column constraint should reference that column's value only,
while an expression appearing in a table constraint may reference multiple columns.
Definition
allows you to enter the definition for the check.
Comment
allows you to enter the comment for the check.