MySQLIntegrityConstraintViolationException: Column 'relation' in where clause is ambiguous

版权声明：本文为博主原创文章，转载请标明出处。 https://blog.csdn.net/u010173095/article/details/79925770

今天项目执行sql 的时候，报了这个错误：

ause: com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'relation' in where clause is ambiguous
; SQL []; Column 'relation' in where clause is ambiguous; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Column 'relation' in where clause is ambiguous
    at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:85) ~[spring-jdbc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73) ~[spring-jdbc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81) ~[spring-jdbc-4.2.5.RELEASE.jar:4.2.5.RELEASE]
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:74) ~[mybatis-spring-1.2.3.jar:1.2.3]

ambiguous 这单词是【模棱两可的】的意思，所以应该是我的关联查询sql中，有多个表都有relation字段，但是我使用的时候有没有指定表，给使用这个字段的地方加上表的ailas就行了。