mysql函数应用实例：截取身份证中的生日

截取身份证中的生日： ci update tb_basicinfo inner join (date     select CONCAT(right(left(basicinfo_card,10),4),'-',right(left(basicinfo_card,12),2),'-',right(left(basicinfo_card,14),2)) as birth,basicinfo_id  

>>阅读原文<<