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單項(xiàng)選擇題

Evaluate the following SQL statement used to create the PRODUCTS table:  
CREATE TABLE products (product_id NUMBER(3) PRIMARY KEY, product_desc VARCHAR2(25), qtyNUMBER(8,2), rate NUMBER(10,2), total_value AS ( qty * rate)) PARTITION BY RANGE (total_value) (PARTITION p1 VALUES LESS THAN (100000), PARTITION p2 VALUES LESS THAN 
(150000), PARTITION p3 VALUES LESS THAN (MAXVALUE))
 COMPRESS FOR ALL OPERATIONS;  
Which statement is true regarding this command?()  

A. It executes successfully but partition pruning cannot happen for this partition key.
B. It produces an error because the TOTAL_VALUE column cannot be used as a partition key.
C. It produces an error because compression cannot be used for the TOTAL_VALUE partition key. 
D. It executes successfully but the values in the TOTAL_VALUE column would not be physically stored in the partitions.

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