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Fable23482019-12-16 01:32:16
MySQL
Fable2348, 2019-12-16 01:32:16

In the group table, find all Mac addresses that were originally fixed at point 197(pointA), what request code should I specify for this?

5df6b3b105696780974892.png
Here is the group table, due to the fact that there is a lot of data, I don’t understand how to write the code correctly, compare all the fix times from point A and B? Prompt solution

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