1Z0-051 Exam Dumps | View the Exhibit and examine the structure of ORD and ORD_ITEMS tables. The ORD

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Question 108/290

View the Exhibit and examine the structure of ORD and ORD_ITEMS tables.
The ORD_NO column is PRIMARY KEY in the ORD table and the ORD_NO and ITEM_NO columns are composite PRIMARY KEY in the ORD_ITEMS table.
Which two CREATE INDEX statements are valid? (Choose two.)

A. CREATE INDEX ord_idx1ON ord(ord_no);

B. CREATE INDEX ord_idx2ON ord_items(ord_no);

C. CREATE INDEX ord_idx3ON ord_items(item_no);

D. CREATE INDEX ord_idx4ON ord,ord_items(ord_no, ord_date,qty);

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