sql语句执行错误怎么解决

linux最新

阿里云服务器

出现这个：SQL语句执行错误: SELECT * FROM emlog_attachment WHERE blogid= AND (`filepath` LIKE '%jpg' OR `filepath` LIKE '%gif' OR `filepath` LIKE '%png') ORDER BY `aid` ASC LIMIT 0,1

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND (`filepath` LIKE '%jpg' OR `filepath` LIKE '%gif' OR `filepath` LIKE '%png')' at line 1

换php版本也不行，怎么能解决呀

blog=后面缺少参数