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正确

练习:

编写正确的SQL语句,选择所有字段年份值小于1970的记录。

SELECT * FROM cars WHERE year < 1970;
SELECT * FROM cars WHERE year<1970;
SELECT * FROM cars WHERE year< 1970;
SELECT * FROM cars WHERE year <1970;
SELECT * FROM cars WHERE year < '1970';
SELECT * FROM cars WHERE year<'1970';
SELECT * FROM cars WHERE year< '1970';
SELECT * FROM cars WHERE year <'1970';

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SELECT * FROM cars
WHERE ;







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