jonlys的专栏

select * from student where '2012-02-27 00:00:00' created_date select * from student where UNIX_TIMESTAMP('2012-02-27 00:00:00') UNIX_TIMESTAMP(created_date); SELECT * FROM student WHERE (

mysql随机取数据 不连续 SELECT * FROM `table` WHERE id >= (SELECT floor( RAND() * ((SELECT MAX(id) FROM `table`)-(SELECT MIN(id) FROM `table`)) + (SELECT MIN(id) FROM `table`))) ORDER BY id LIMIT 1;