Câu 1: C2090-930: IBM SPSS Modeler Professional v3
You have two data sets. One data set contains customer name and age information along with a customer ID. The second data set contains the customer ID along with address information. There are no addresses which do not belong to a customer, there are customers which have no address, and there are customers which have…
Nội dung câu hỏi
You have two data sets. One data set contains customer name and age information along with a customer ID. The second data set contains the customer ID along with address information. There are no addresses which do not belong to a customer, there are customers which have no address, and there are customers which have multiple addresses. Which type of join will display all customers who have no recorded address?
Các lựa chọn
Đáp án được giữ gọn theo nhãn A, B, C, D trong phần bình chọn tương tác.
- A. Inner join
- B. Outer join
- C. Partial outer join — đáp án hiện tại
- D. Anti-join
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