Aggregates
Less than 1 minute
Using maintained aggregates
MemTableEh provide support for summarizing data over all records of DataSet.
MemTableEh keep aggregated values (such as SUM, COUNT) in TAggregateField field type.
At Design-time mode use Fields Editor to create persistent aggregated field. You can bind such fields to TDBEditEh component or to the footer of TDBGridEh.