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mysql 时间日期比较大小

2012-03-02 13:29 363 查看
select * from student where '2012-02-27 00:00:00' < created_date and '2012-02-29 00:00:00' > created_date

select * from student where UNIX_TIMESTAMP('2012-02-27 00:00:00') < UNIX_TIMESTAMP(created_date) and UNIX_TIMESTAMP('2012-02-29 00:00:00') > UNIX_TIMESTAMP(created_date);

SELECT * FROM student WHERE (UNIX_TIMESTAMP(created_date) - UNIX_TIMESTAMP('2012-02-26 00:00:00') ) >= 0 AND (UNIX_TIMESTAMP(created_date) - UNIX_TIMESTAMP('2012-02-29 00:00:00') ) <= 0
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