【发布时间】:2017-02-11 20:52:53
【问题描述】:
我正在尝试执行此选择:
SELECT c FROM Incident c
WHERE c.incidentID IN
(
SELECT DISTINCT d.incidentID FROM TagIncident d WHERE tagName IN ( d.tagName=?1 )
AND d.incidentID NOT IN
(SELECT a.incidentID FROM TagIncident a WHERE tagName IN (a.tagName=?2))
)
在我使用 JPA/Spring 的系统中出现错误:
"HTTP Status 500 - Request processing failed; nested exception is org.springframework.dao.InvalidDataAccessApiUsageException: An exception occurred while creating a query in EntityManager:"
我在语法上做错了什么吗? 我在我的数据库(HANA)上对其进行了测试,它工作正常。
感谢您的帮助!
编辑更多错误日志
我最近的尝试是:
SELECT c FROM Incident c WHERE c.incidentID IN
( SELECT DISTINCT d.incidentID FROM TagIncident d WHERE d.tagName IN
( d.tagName=?1 ) AND d.incidentID NOT IN
( SELECT a.incidentID FROM TagIncident a WHERE a.tagName IN (a.tagName=?2) ))
编辑
Exception Description: Syntax error parsing [SELECT c FROM Incident c WHERE c.incidentID IN ( SELECT DISTINCT d.incidentID FROM TagIncident d WHERE d.tagName IN ( d.tagName=?1 ) AND d.incidentID NOT IN ( SELECT a.incidentID FROM TagIncident a WHERE a.tagName IN (a.tagName=?2) ))]. [117, 131]
The expression at index {0} is not a valid expression. [215, 229]
The expression at index {0} is not a valid expression.; nested exception is java.lang.IllegalArgumentException: An exception occurred while creating a query in EntityManager: Exception Description: Syntax error parsing [SELECT c FROM Incident c WHERE c.incidentID IN ( SELECT DISTINCT d.incidentID FROM TagIncident d WHERE d.tagName IN ( d.tagName=?1 ) AND d.incidentID NOT IN ( SELECT a.incidentID FROM TagIncident a WHERE a.tagName IN (a.tagName=?2) ))]. [117, 131]
The expression at index {0} is not a valid expression. [215, 229]
The expression at index {0} is not a valid expression.] with root cause Local Exception Stack: Exception [EclipseLink-0] (Eclipse Persistence Services - 2.6.0.v20150309-bf26070): org.eclipse.persistence.exceptions.JPQLException Exception Description: Syntax error parsing [SELECT c FROM Incident c WHERE c.incidentID IN ( SELECT DISTINCT d.incidentID FROM TagIncident d WHERE d.tagName IN ( d.tagName=?1 ) AND d.incidentID NOT IN ( SELECT a.incidentID FROM TagIncident a WHERE a.tagName IN (a.tagName=?2) ))]. [117, 131]
The expression at index {0} is not a valid expression. [215, 229]
The expression at index {0} is not a valid expression.
最新尝试:
List<String> list_add_tags = new ArrayList<String>();
List<String> list_remove_tags = new ArrayList<String>();
// creating custom sql_query
String sql_query = "SELECT c FROM Incident c WHERE c.incidentID IN ( SELECT DISTINCT(d.incidentID) FROM TagIncident d WHERE d.tagName IN ( :add_tags ) AND d.incidentID NOT IN ( SELECT a.incidentID FROM TagIncident a WHERE a.tagName IN (:remove_tags)))";
TypedQuery<Incident> query = em.createQuery(sql_query, Incident.class);
query.setParameter("add_tags", list_add_tags);
query.setParameter("remove_tags", list_remove_tags);
return query.getResultList();
还是不行。 =(
错误:
You have attempted to set a value of type class java.util.ArrayList for parameter add_tags with expected type of class java.lang.String
【问题讨论】:
-
您使用的是哪个 JPA 提供程序? Hibernate、EclipseLink、OpenJPA 还是鲜为人知的 DataNucleaus、Toplink、ObjectDB 之一?在 Hibernate 中,您可以分配列表,如 JPA 规范第 4.6.17.5 节中的示例所示,但用他们自己的话来说,他们认为他们支持它作为奖励功能。也许您应该尝试删除参数周围的括号?官方示例确实暗示您不需要它们。
-
EclipseLink 2.6.0,从列表的 IN 中删除了括号并且它有效,这样做我能理解什么?如何检查我的 JPA 版本?