Order-based Group Operations (II)

In the previous article, we look at the significance of the order of members in a to-be-grouped set. Speaking of the orderliness of sets, then conversely, does the order of members in a result set has significance in real-life computations?

Yes, though not as important as the order of members in the original data set.

There are two aspects we need to consider about the orderliness of the result set of a group operation. One is in which order the …

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