03 2014 档案
摘要：Unix 时间戳 Unix timestamp ('1970-01-01 00:00:00' GMT 之后的秒数) MySQL： FROM_UNIXTIME() 给定一个Unix 时间戳 （可以是字段名,也可以直接是Unix 时间戳字符串），返回格式化日期例如:mysql>SELECT FROM_U
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摘要：SELECT * FROM tablename ORDER BY RAND() LIMIT 1 SELECT * FROM table_name AS r1 JOIN (SELECT ROUND(RAND() * (SELECT MAX(id) FROM table_name)) AS id) AS
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