java persistence native sql不接受参数

Question

我的疑问是

sql = "SELECT SUM(TOTAL_BYTES_DELIVERED) / SUM(TOTAL_TIME_TAKEN_IN_DELIVERY) 
         FROM MV_MFT_TRANSFER 
        WHERE TRANSFER_INITIATION_TIME > :startDate 
          AND TRANSFER_INITIATION_TIME < :endDate"

Query query = em.createNativeQuery(sql);
query.setParameter("startDate", startDate, TemporalType.DATE);
query.setParameter("endDate", endDate, TemporalType.DATE);
query.getResultList();'

当我运行它时,我收到一个错误

SQLExceptionTHrown: 
<Sep 11, 2012 12:50:46 PM PDT> <Warning> <EclipseLink> <BEA-2005000> <2012-09-11 12:50:46.893--UnitOfWork(1387841584)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.4.1.v20120804-d768c4f): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Missing IN or OUT parameter at index:: 1
Error Code: 17041
Call: SELECT SUM(TOTAL_BYTES_DELIVERED) / SUM(TOTAL_TIME_TAKEN_IN_DELIVERY) FROM MV_MFT_TRANSFER WHERE TRANSFER_INITIATION_TIME > :startDate AND TRANSFER_INITIATION_TIME < :endDate
Query: DataReadQuery(sql="SELECT SUM(TOTAL_BYTES_DELIVERED) / SUM(TOTAL_TIME_TAKEN_IN_DELIVERY) FROM MV_MFT_TRANSFER WHERE TRANSFER_INITIATION_TIME > :startDate AND TRANSFER_INITIATION_TIME < :endDate")> 
***SQLException in init() TRANSFER METRICS BEAN****
Local Exception Stack: 
Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.4.1.v20120804-d768c4f): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: Missing IN or OUT parameter at index:: 1

Answer 1

以下解决方案应该有效:

sql = "SELECT SUM(TOTAL_BYTES_DELIVERED) / SUM(TOTAL_TIME_TAKEN_IN_DELIVERY) 
         FROM MV_MFT_TRANSFER 
        WHERE TRANSFER_INITIATION_TIME > ?
          AND TRANSFER_INITIATION_TIME < ?"

Query query = em.createNativeQuery(sql);
query.setParameter(1, startDate, TemporalType.DATE);
query.setParameter(2, endDate, TemporalType.DATE);
query.getResultList();

似乎如果你使用位置参数它将起作用.您无法组合命名参数和本机查询.以下是一些链接:

http://java.boot.by/scbcd5-guide/ch08s05.html

http://www.wisegeek.com/what-are-native-queries.htm

还有更多,只是谷歌:"只有位置参数绑定可以移植用于本机查询".

编辑:有类似问题的更多链接:

如何从JDBC查询中获取所有元素

JPA/Hibernate本机查询无法识别参数