how can I iterate between multiple 2 dimensional arrays. For example, I want to find all students who reside in Cobb, were born after 1970 and received a C or better in a course taught by Evan Duggan. The two tables share n common the user ID for example "0033"how can I iterate between multiple 2 dimensiona
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如何在共享共同值的多个二维数组之间进行迭代？
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