发布日期:2020-04-10
A.Both the indexes are created; however, only the ORD_COSTOMER index is visible.
B.The optimizer evaluates index access from both the Indexes before deciding on which index to use for query execution plan.
C.Only the ORD_CUSTOMER_IX1 index is created.
D.Only the ORD_CUSTOMER_IX2 index is created.
E.Both the indexes are updated when a new row is inserted, updated, or deleted In the orders table.
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