SELECT name,tele,COUNT(pric) as countinfo,SUM(pric) as allpric from orderinfo,user where user.uid=orderinfo.uid GROUP BY user.tele ORDER BY allpric DESC;
Yang_Yvan的博客Mybatis是一款很常用的持久性框架,但在使用的时候也会出现很多问题。常见的问题和解决方法来做一下小小的总结。 Error parsing Mapper XML. The XML location is ‘mapper/MinGrayscaleQaDao.xml’. Cause: org....
慢积跬步的博客但是mybatis执行的时候却会报错: # Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version...