Java &引用；“未知列”；在AS400 db2上使用JPA

我收到以下错误：

无法执行查询；SQL[选择DFBOGARM，求和（KVANTUM1） 作为KVANTUM1，（总和（DSTOMK）*1000/总和（KVANTUM1））作为DSTOMK， （总和（DSTAKK）*1000/总和（KVANTUMAKK））作为从 NHODATA.ERHDSTV1，其中DFSALVAR在（52,55）组中按DFBOGARM顺序按 DFBOGARM]；嵌套异常是 org.hibernate.exception.sqlgrammareexception:无法执行查询

原因：org.hibernate.exception.sqlgrammareexception:无法 执行查询

原因：com.ibm.as400.access.AS400JDBCSQLSyntaxErrorException:异常 检测到未定义的列名

查询实现：

public interface DistributionRepository extends JpaRepository<ERHDSTV1, Long> {

@Query(value="select  "
        + "    DFBOGARM, "
        + "    sum(KVANTUM1) as KVANTUM1, "
        + "    (sum(DSTOMK) * 1000 / sum(KVANTUM1)) as DSTOMK, "
        + " (sum(DSTAKK) * 1000 / sum(KVANTUMAKK)) as DSTAKK "
        + "from NHODATA.ERHDSTV1 "
        + "where DFSALVAR in(52, 55) "
        + "group by DFBOGARM "
        + "order by DFBOGARM", nativeQuery = true)
List<ERHDSTV1> findSummedValuesFor52and55();}

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当从sql工具执行时，来自错误消息的查询将完美执行

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标题是：DFBOGARM、KVANTUM1、DSTOMK、DSTAKK

好的，所以错误是我必须为上面的每一列选择值

这意味着我做了如下查询：

@Query(value = "select  "
        + "    DFBOGARM, 1 as DFSALVAR, 1 as DSTMND, 1 as DSTMNDAKK, 1 as KVANTUMAKK, "
        + "    sum(KVANTUM1) as KVANTUM1, "
        + "    (sum(DSTOMK) * 1000 / sum(KVANTUM1)) as DSTOMK, "
        + " (sum(DSTAKK) * 1000 / sum(KVANTUMAKK)) as DSTAKK "
        + "from NHODATA.ERHDSTV1 "
        + "where DFSALVAR in(52, 55) "
        + "group by DFBOGARM "
        + "order by DFBOGARM", nativeQuery = true)

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这很有效。

您的DBMS是否希望您的列名用小写字母？消息是否指定了据称未定义的列名？你能让你的应用程序打印出实际生成的SQL吗？更新了，但是，不，没有提到具体的列，而且，不管是大写还是小写。似乎错误表明SQL查询是错误的，你是否尝试过直接对数据库运行它？“当从sql工具执行时，来自错误消息的查询执行得非常完美”我对列的大写名称也有类似的问题。这个答案有助于解决这个问题。

@Query(value = "select  "
        + "    DFBOGARM, 1 as DFSALVAR, 1 as DSTMND, 1 as DSTMNDAKK, 1 as KVANTUMAKK, "
        + "    sum(KVANTUM1) as KVANTUM1, "
        + "    (sum(DSTOMK) * 1000 / sum(KVANTUM1)) as DSTOMK, "
        + " (sum(DSTAKK) * 1000 / sum(KVANTUMAKK)) as DSTAKK "
        + "from NHODATA.ERHDSTV1 "
        + "where DFSALVAR in(52, 55) "
        + "group by DFBOGARM "
        + "order by DFBOGARM", nativeQuery = true)