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多项选择题 The CUSTOMERS table has these columns: The CUSTOMER_ID column is the primary key for the table.Which two statements find the number of customers? （）

A、SELECT TOTAL(*)   FROM customers;

B、SELECT COUNT(*)   FROM customers;

C、SELECT TOTAL(customer_id)   FROM customers;

D、SELECT COUNT(customer_id)   FROM customers;

E、SELECT COUNT(customers)   FROM customers;

F、SELECT TOTAL(customer_name)   FROM customers;

  • B,D

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