mybatis的Mapper.xml文件SQL语句BadSqlGrammarException之FUNCTION错误系列

时间 2019-11-25

标签 mybatis mapper.xml mapper xml 文件 sql 语句 badsqlgrammarexception function 错误系列栏目 MyBatis 繁體版

原文原文链接

想必各位在开发过程当中必定使用过：统计的功能，用到了不少SQL的函数，因而就直接写在Mapper文件中了；java

好比：mysql

member_num,MAX(ID) AS newestLoanID,MIN (ID) AS earlyLoanID,SUM(applied_amount) AS sumLoansAmount,status

select spring

member_num,MAX(ID) AS newestLoanID,MIN (ID) AS earlyLoanID,SUM(applied_amount) AS sumLoansAmount,status

from credit_loan_record ......sql

看似没有啥问题；app

执行的时候报错了！函数

java.lang.RuntimeException: org.springframework.jdbc.BadSqlGrammarException: 工具

### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: FUNCTION credit_center.MIN does not exist. Check the 'Function Name Parsing and Resolution' section in the Reference Manual优化

因而拿到mysql的客户端工具来执行！一样的错误！！spa

那么可想而知，真的是SQL的问题了，因而咱们美化一下SQL开发

SELECT
member_num,
MAX( ID ) AS newestLoanID,
MIN( ID ) AS earlyLoanID,
SUM( applied_amount ) AS sumLoansAmount,
STATUS
FROM
credit_loan_record
WHERE
member_num = 18810875228
AND deleted = 0

居然经过了！！！

等等！好像异常里面有提示！ FUNCTION credit_center.MIN does not exist.

MIN (ID) AS earlyLoanID　　——居然有空格
优化以后：MIN( ID ) AS earlyLoanID,
而后就不报错！

因此，若是之后提示：FUNCTION XXXXX.MIN does not exist.时候，记得看看是否是有空格啊！或者写的不够严谨