我正在尝试使用休眠 3.3.2.GA 执行 sql 本机查询。
我有以下查询。
session.createSQLQuery("SELECT {dept1.*}, {dept2.*} FROM Dept d1, Dept d2 WHERE d1.deptId = d2.deptId").
addEntity("dept1",com.test.pojo.Dept.class).
addEntity("dept2",com.test.pojo.Dept.class).
list();
Dept 类的映射文件是
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="com.test.pojo.Dept">
<id column="deptId" name="deptId" type="long">
<generator class="native"/>
</id>
<version name="version" access="field" column="version"></version>
<property name="deptName" type="string" column="deptName"/>
<set name="emps" cascade="all" inverse="true">
<key column="deptId"></key>
<one-to-many class="com.test.pojo.Emp"/>
</set>
</class>
</hibernate-mapping>
但为什么我得到以下错误?它正在将我的查询转换为
选择dept1.**deptId 作为 deptId1_0_,**dept1.**version 作为 version1_0_,**dept1.**deptName 作为 deptName1_0_,**dept2.**deptId 作为 deptId1_1_,**dept2.**version 作为 version1_1_,* *dept2.**deptName 为 deptName1_1_ **来自 Dept d1,Dept d2 WHERE d1.deptId = d2.deptId。
休眠:选择 dept1.deptId 作为 deptId1_0_,dept1.version 作为 version1_0_,dept1.deptName 作为 deptName1_0_,dept2.deptId 作为 deptId1_1_,dept2.version 作为 version1_1_,dept2.deptName 作为 deptName1_1_ FROM Dept d1,Dept d2 WHERE d1.deptId = d2 .deptId 20:43:41,109 WARN JDBCExceptionReporter:100 - SQL 错误:904,SQLState: 42000 20:43:41,109 错误 JDBCExceptionReporter:101 - ORA-00904:“DEPT2”。“DEPTNAME”:无效标识符
Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not execute query
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.loader.Loader.doList(Loader.java:2235)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2129)
at org.hibernate.loader.Loader.list(Loader.java:2124)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:312)
at org.hibernate.impl.SessionImpl.listCustomQuery(SessionImpl.java:1723)
at org.hibernate.impl.AbstractSessionImpl.list(AbstractSessionImpl.java:165)
at org.hibernate.impl.SQLQueryImpl.list(SQLQueryImpl.java:175)
at com.test.test.Test1.main(Test1.java:96)
Caused by: java.sql.SQLException: ORA-00904: "DEPT2"."DEPTNAME": invalid identifier
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:590)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1973)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:850)
at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2599)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2963)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:658)
at oracle.jdbc.driver.OraclePreparedStatement.executeQuery(OraclePreparedStatement.java:584)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1812)
at org.hibernate.loader.Loader.doQuery(Loader.java:697)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2232)
... 7 more