我正在使用以下 HQL:
select new map(hdr.order_number as order_number, (select count(dtl) from OrderDetail dtl where dtl.user_doc_id=hdr.user_doc_id AND dtl.status <> 'Cancelled') as activeRowCount) from OrderHeader hdr where hdr.user_doc_id in ('PO1')
OrderHeader 和 OrderDetail 之间没有定义关联。当执行上述查询时,我收到以下错误:
Caused by: org.hibernate.QueryException: could not resolve property: user_doc_id of: OrderHeader [select new map(hdr.order_number as order_number,(select count(dtl) from OrderDetail dtl where dtl.user_doc_id=hdr.user_doc_id AND dtl.status <> 'Cancelled') as activeRowCount) from OrderHeader hdr where hdr.user_doc_id in ('PO00000
1')]
at org.hibernate.persister.entity.AbstractPropertyMapping.propertyException(AbstractPropertyMapping.java:81)
at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:75)
at org.hibernate.persister.entity.AbstractEntityPersister.toType(AbstractEntityPersister.java:1451)
at org.hibernate.hql.ast.tree.FromElementType.getPropertyType(FromElementType.java:312)
at org.hibernate.hql.ast.tree.FromElement.getPropertyType(FromElement.java:487)
at org.hibernate.hql.ast.tree.DotNode.getDataType(DotNode.java:611)
at org.hibernate.hql.ast.tree.DotNode.prepareLhs(DotNode.java:263)
at org.hibernate.hql.ast.tree.DotNode.resolve(DotNode.java:210)
at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:117)
at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:113)
at org.hibernate.hql.ast.tree.DotNode.resolveSelectExpression(DotNode.java:674)
at org.hibernate.hql.ast.HqlSqlWalker.resolveSelectExpression(HqlSqlWalker.java:877)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExpr(HqlSqlBaseWalker.java:2049)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.aliasedSelectExpr(HqlSqlBaseWalker.java:2229)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.constructor(HqlSqlBaseWalker.java:2419)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExpr(HqlSqlBaseWalker.java:2116)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectExprList(HqlSqlBaseWalker.java:1981)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectClause(HqlSqlBaseWalker.java:1513)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:584)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:292)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:235)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:254)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:185)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:101)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:80)
at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:98)
at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:156)
at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:135)
at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1760)
at org.springframework.orm.hibernate3.HibernateTemplate$30.doInHibernate(HibernateTemplate.java:914)
at org.springframework.orm.hibernate3.HibernateTemplate$30.doInHibernate(HibernateTemplate.java:1)
at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:406)
... 88 more
我无法理解我哪里出了问题。有人可以帮忙吗?
最佳答案
下面的查询应该有效。如果不是 id,只需将 hdr1.id 替换为表的主键列即可
select new map(
hdr.order_number as order_number,
(select count(dtl) from OrderHeader hdr1 join OrderDetail dtl on dtl.user_doc_id=hdr1.user_doc_id AND dtl.status <> 'Cancelled' AND hdr1.id = hdr.id) as activeRowCount)
from OrderHeader hdr where hdr.user_doc_id in ('PO1')
关于mysql - HQL select 子句中的关联子查询,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/19448129/