Query writing - Identifying payment dates - First to Last
Good afternoon All,
I used to use crystal but haven't for some years and I am a bit rusty and require some help.
I have been asked to identify from a large table spanning over 3 years:
The number of new first payments per financial quarter.
The duration of payments per year e.g. 15 People have paid 3 times over the last three years.
The beginning and end of the payment cycle e.g. 20 People started paying in 2013 but stopped in 2014.
Average amount of first payment
The data in the table (before i consider grouping) looks like this:
|Contacts Number||Payment Date||Payment Amount|
I have a feeling that this is very straight for