单选题Which SQL statement accepts user input for the columns to be displayed, the table name, and WHERE condition? （）ASELECT 1, 2 FROM 3 WHERE last_name = '8';BSELECT 1, '2' FROM 3 WHERE ' last_name = '8';CSELECT 1, 2 FROM 3 WHERE last_name = '8';DSELECT 1, '2' FROM EMP WHERE last_name = '8';
单选题
Which SQL statement accepts user input for the columns to be displayed, the table name, and WHERE condition? （）
A
SELECT &1, &2 FROM &3 WHERE last_name = '&8';
B
SELECT &1, '&2' FROM &3 WHERE '& last_name = '&8';
C
SELECT &1, &2 FROM &3 WHERE last_name = '&8';
D
SELECT &1, '&2' FROM EMP WHERE last_name = '&8';
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