Java 这个 HQL 有什么问题？“节点没有数据类型”
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时间：2020-08-11 22:16:31 来源:igfitidea点击:
What's wrong with this HQL? "No data type for node"
提问by alamar
session.createQuery("Select attribute from GoodsSection tgs " +
"join gs.ascendants ags join ags.attributes attribute " +
"where attribute.outerId = :outerId and tgs = :section ")
.setString("outerId", pOuterId)
.setEntity("section", section)
.setMaxResults(1)
.uniqueResult();
Looks fine to me, but the result is
对我来说看起来不错，但结果是
java.lang.IllegalStateException: No data type for node: org.hibernate.hql.ast.tree.IdentNode
\-[IDENT] IdentNode: 'attribute' {originalText=attribute}
at org.hibernate.hql.ast.tree.SelectClause.initializeExplicitSelectClause(SelectClause.java:145)
at org.hibernate.hql.ast.HqlSqlWalker.useSelectClause(HqlSqlWalker.java:705)
at org.hibernate.hql.ast.HqlSqlWalker.processQuery(HqlSqlWalker.java:529)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:645)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229)
Why? What's wrong?
为什么？怎么了？
采纳答案by skaffman
You haven't defined the "gs" alias. You only have "ags" and "tgs".
您尚未定义“gs”别名。你只有“ags”和“tgs”。
