Abstract: Nested and grouped report data are aligned. A data-bound object such as a data region or an outer group serves as a data container having a domain scope. Instances of an inner group with misaligned data values are identified. The inner group instances are synchronized based on the data container domain scope, in response to a synchronization instruction in a report definition. During synchronization, data values are injected, and a synchronization group may be dynamically created. Aggregate functions are calculated over a synchronized group without regard to injected data values. A report layout is generated with synchronization visually indicated.

Abstract: Generating a report involves phases such as (a) database queries or other raw data accesses, (b) calculations such as data grouping, sorting, filtering, aggregation, (c) data presentation layout, (d) data formatting, and (e) rendering. When generating a modified version of a report, reusable interim results for phases (b), (c), and (d) are identified and retrieved from a cache instead of being recalculated. Newly calculated interim results are also cached for possible future use.

Abstract: Nested and grouped report data are aligned. A data-bound object such as a data region or an outer group serves as a data container having a domain scope. Instances of an inner group with misaligned data values are identified. The inner group instances are synchronized based on the data container domain scope, in response to a synchronization instruction in a report definition. During synchronization, data values are injected, and a synchronization group may be dynamically created. Aggregate functions are calculated over a synchronized group without regard to injected data values. A report layout is generated with synchronization visually indicated.

Abstract: Grouping and regrouping of data using aggregation is disclosed. In one aspect of this disclosure, data can be grouped based on some expressions, and then this result can be regrouped based on other expressions which may utilize aggregates computed in the context of the first group. Such regrouping is performed on a group basis—as opposed to being regrouped, for example, on a row basis. The grouping and regrouping can employ various logical expressions that may incorporate the aggregates. Moreover, regrouping of regrouping can be performed, and the mentioned logical expressions can be based on groups of various scopes.