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正确
SELECT * FROM Customers
WHERE @(10) @(2) @(3) @(4);
SELECT * FROM Customers
WHERE PostalCode IS NOT NULL;
不正确
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下一题 ❯SELECT * FROM Customers WHEREw3exercise_input_no_0w3exercise_input_no_1w3exercise_input_no_2w3exercise_input_no_3; |