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Examine the SQL statements that creates ORDERS table: CREATE TABLE orders
(SER_NO NUMBER UNIQUE,
ORDER_ID NUMBER,
ORDER_DATE DATE NOT NULL
STATUS VARCHARD2(10)
CHECK (status IN ('CREDIT','CASH')),
PROD_ID_NUMBER
REFERENCES PRODUCTS(PRODUCT_ID),
ORD_TOTAL NUMBER,
PRIMARY KEY (order id, order date));
For which columns would an index be automatically created when you execute the aboveSQL statement? ()

多选题
2022-01-08 09:00
A、SER_NO
B、ORDER_ID
C、STATUS
D、PROD_ID
E、ORD_TOTAL
F、Composite index on ORDER_ID and ORDER_DATE
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正确答案
A| F

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标签: 1Z0-007
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