Is there a way of making a column(s) add up specific columns for each different row within a grid (or anywhere else)?
An example is (for a soccer database):
HomeFirstHalfGoals + HomeSecondHalfGoals ? this would be calculated for the HomeTotalGoalsScored column.
AwayFirstHalfGoals + AwaySecondHalfGoals ? this would be calculated for the AwayTotalGoalsScored column