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I am from an SQL background was looking for the best way of doing this. c = a.account_id.isin(b.account_id).astype(bool) a[c] Is the above method efficient way? Select the correct answer from above options

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Yes, it is, but we can put them into one row, and you do not need to convert isin output as bool since it is already bool type. a[a.account_id.isin(b.account_id)] Learn Python for Data Science Course to improve your technical knowledge.

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