- Different from that of SQL, the grouping of esProc can be independent from the summarizing and the grouping result is reusable. This is compatible with the true meaning of grouping operation.
- Based on the result of grouping for one time, multiple times of sorting, summarizing, and filtering can be implemented.
- The reusable grouping is not only intuitive and easy-to-understand, but also convenient for step by step computation, enabling user to control the data more flexibly.
- Since the grouping result is reusable, you are never required to group repeatedly before every statistics followed, and thus saved computation cost, improved the efficiency of computation.