6

我正在使用 hsqldb 和休眠执行查询。我有一个订单声明：-

Query query = em
    .createQuery("SELECT DISTINCT new com.mytransferobject.QuickSearchResultTO(m.id, m.firstName||' '||m.surname, '')  " +
        "FROM Member m, ClassC c, ClassCm cm " +
        "WHERE  c.id = cm.clubId AND m.id = cm.memberId " +
        "AND c.lft >= :lft AND c.lft <= :rgt " +
        "AND (firstName LIKE :memberName OR surname LIKE :memberName) " +
        "AND m.deleted = false " +
        "AND c.deleted = false " +
        "ORDER BY m.firstName, m.surname");

query.setParameter("lft", lft);
query.setParameter("rgt", rgt);
query.setParameter("memberName", memberName + "%");

这在 MYSQL 中运行良好，但在我的测试代码中失败（使用 hsqldb 2.2.6）。我尝试将它们连接在一起，它工作正常，但这是一个高度使用的查询，所以我想避免任何不必要的操作。

我遇到了一个例外：-

    javax.persistence.PersistenceException: org.hibernate.exception.SQLGrammarException: invalid ORDER BY expression
        at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1360)
        at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1288)
        at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:261)
        at com.servasport.smp.dao.jpa.MemberDaoImpl.quickSearchAll(MemberDaoImpl.java:626)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
        at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202)
        at $Proxy68.quickSearchAll(Unknown Source)
        at com.servasport.smp.dao.MemberDaoTest.quickSearchSuccess(MemberDaoTest.java:768)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
        at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
        at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
        at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
        at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
        at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
        at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
        at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
        at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
        at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
        at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
        at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
    Caused by: org.hibernate.exception.SQLGrammarException: invalid ORDER BY expression
        at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:83)
        at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:49)
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125)
        at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110)
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:146)
        at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
        at $Proxy95.prepareStatement(Unknown Source)
        at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$5.doPrepare(StatementPreparerImpl.java:147)
        at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:166)
        at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareQueryStatement(StatementPreparerImpl.java:145)
        at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1720)
        at org.hibernate.loader.Loader.doQuery(Loader.java:828)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:289)
        at org.hibernate.loader.Loader.doList(Loader.java:2447)
        at org.hibernate.loader.Loader.doList(Loader.java:2433)
        at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2263)
        at org.hibernate.loader.Loader.list(Loader.java:2258)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:470)
        at org.hibernate.hql.internal.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:355)
        at org.hibernate.engine.query.spi.HQLQueryPlan.performList(HQLQueryPlan.java:196)
        at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1161)
        at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101)
        at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:252)
        ... 43 more
    Caused by: java.sql.SQLSyntaxErrorException: invalid ORDER BY expression
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.JDBCPreparedStatement.<init>(Unknown Source)
        at org.hsqldb.jdbc.JDBCConnection.prepareStatement(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138)
        ... 61 more
    Caused by: org.hsqldb.HsqlException: invalid ORDER BY expression
        at org.hsqldb.error.Error.error(Unknown Source)
        at org.hsqldb.error.Error.error(Unknown Source)
        at org.hsqldb.QuerySpecification.resolveGroups(Unknown Source)
        at org.hsqldb.QuerySpecification.resolveTypesPartTwo(Unknown Source)
        at org.hsqldb.QueryExpression.resolve(Unknown Source)
        at org.hsqldb.ParserDQL.compileCursorSpecification(Unknown Source)
        at org.hsqldb.ParserCommand.compilePart(Unknown Source)
        at org.hsqldb.ParserCommand.compileStatement(Unknown Source)
        at org.hsqldb.Session.compileStatement(Unknown Source)
        at org.hsqldb.StatementManager.compile(Unknown Source)
        at org.hsqldb.Session.execute(Unknown Source)
        ... 68 more
4

2 回答 2

8

Probably, you have the exception "invalid order by expression" because you specify a column in ORDER BY (in your case, m.firstName and m.surname) that are not explicit returned in the SELECT clause. Some databases, like SQL Server and MySQL don't need this, but others like HSQLDB and DB2 cannot do this ORDER BY without the fields in SELECT too.

I think your code will work if you use:

Query query = em
    .createQuery("SELECT DISTINCT new com.mytransferobject.QuickSearchResultTO(m.id, m.firstName, m.surname, m.firstName||' '||m.surname, '')  " +
        "FROM Member m, ClassC c, ClassCm cm " +
        "WHERE  c.id = cm.clubId AND m.id = cm.memberId " +
        "AND c.lft >= :lft AND c.lft <= :rgt " +
        "AND (firstName LIKE :memberName OR surname LIKE :memberName) " +
        "AND m.deleted = false " +
        "AND c.deleted = false " +
        "ORDER BY m.firstName, m.surname");
于 2013-08-01T11:33:09.050 回答
0

我有同样的问题，我通过使用 GROUP BY 而不是 DISTINCT 来修复它，它返回相同的结果。如果您使用以下代码，您的代码将起作用：

Query query = em
.createQuery("SELECT new com.mytransferobject.QuickSearchResultTO(m.id, m.firstName||' '||m.surname, '')  " +
    "FROM Member m, ClassC c, ClassCm cm " +
    "WHERE  c.id = cm.clubId AND m.id = cm.memberId " +
    "AND c.lft >= :lft AND c.lft <= :rgt " +
    "AND (firstName LIKE :memberName OR surname LIKE :memberName) " +
    "AND m.deleted = false " +
    "AND c.deleted = false " +
    "GROUP BY m.idORDER BY m.firstName, m.surname");
于 2018-01-17T14:41:45.740 回答