by admin » Mon May 31, 2010 4:35 pm
Hi JL,
The group caption feature you're referring to, is meant to merge 2 fields on the grouping level. It expects that there is a 1-1 relationship between the fields.
It is usually used when a table has column pairs such as Product ID / Product Name - Account number / Account Name - fields where all records with a particular value in one of the pairs fields, also has the very same value in the other pair fields. This way, we can group on productID and productName and show them on the same group level.
If you have a date field in your data, you can group on that, and then pick a date format such as YYYY-MM that would render a date like 2010-05-30 as "2010-05", and give you 36 distinct values (=groups) for a 3 year period.
Best regards
Bo