How to rank and analyze the data column in big data report

This article analyzes with you "big data report how to achieve the ranking analysis of data columns". The content is detailed and easy to understand, "big data report how to achieve ranking analysis of data columns" interested friends can follow the editor's ideas slowly in-depth to read, I hope that after reading can be helpful to everyone. The following is the editor's in-depth study of "big data report how to achieve ranking analysis of data columns" knowledge.

But this SQL is a bit complicated, so the ranking in the group is even more difficult to write (window functions are used, some databases do not support window functions), and then complex situations (such as ranking by different levels) cannot be written.

Another way is to use report tools, most tools that support complex reports have this feature, such as: playing with report rankings can achieve this effect:

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