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私はJava EEアプリケーションを作成しようとしています。ビジネスレイヤーでは、選択クエリを実行します。MySQLのSQL構文エラー
Query q = entityManager.createNativeQuery(
"set @row:=0;\n" +
"SELECT XA.ID, XA.Name, XA.UploadDate, XA.TopicID, XA.Title, XA.Description, " +
"XA.ImageURL, XA.ShortDesc, XA.ExpirationDate, XA.IsActive, XA.Topic\n" +
"FROM (\n" +
"SELECT Advertisement.*, Topic.Topic, " +
"@row:[email protected]+1 AS RowNum, NickName as Name\n" +
"FROM Advertisement, ad_User, Topic\n" +
"WHERE Advertisement.Uploader = ad_User.UserID AND Topic.ID = Advertisement.TopicID " +
SearchConstraints.createSQL(constraints) + onlyActive + "\n" +
") AS XA\n" +
"WHERE XA.RowNum BETWEEN ?1 AND ?2\n"+
"ORDER BY XA.ID DESC;");
q.setParameter(1, from);
q.setParameter(2, to);
List<Object[]> result = q.getResultList();
と、このエラーがスローされます：ここでの選択方法の主な部分はある
Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.3.0.v20110604-r9504): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT XA.ID, XA.Name, XA.UploadDate, XA.TopicID, XA.Title, XA.Description, XA.I' at line 2
Error Code: 1064
Call: set @row:=0;
SELECT XA.ID, XA.Name, XA.UploadDate, XA.TopicID, XA.Title, XA.Description, XA.ImageURL, XA.ShortDesc, XA.ExpirationDate, XA.IsActive, XA.Topic
FROM (
SELECT Advertisement.*, Topic.Topic, @row:[email protected]+1 AS RowNum, NickName as Name
FROM Advertisement, ad_User, Topic
WHERE Advertisement.Uploader = ad_User.UserID AND Topic.ID = Advertisement.TopicID AND IsActive = 1
) AS XA
WHERE XA.RowNum BETWEEN ? AND ?
ORDER BY XA.ID DESC;
bind => [2 parameters bound]
Query: DataReadQuery(sql="set @row:=0;
SELECT XA.ID, XA.Name, XA.UploadDate, XA.TopicID, XA.Title, XA.Description, XA.ImageURL, XA.ShortDesc, XA.ExpirationDate, XA.IsActive, XA.Topic
FROM (
SELECT Advertisement.*, Topic.Topic, @row:[email protected]+1 AS RowNum, NickName as Name
FROM Advertisement, ad_User, Topic
WHERE Advertisement.Uploader = ad_User.UserID AND Topic.ID = Advertisement.TopicID AND IsActive = 1
) AS XA
WHERE XA.RowNum BETWEEN ? AND ?
ORDER BY XA.ID DESC;")
at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:333)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:644)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:535)
at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:1702)
at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:253)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:207)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:193)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:264)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelect(DatasourceCallQueryMechanism.java:246)
at org.eclipse.persistence.queries.DataReadQuery.executeNonCursor(DataReadQuery.java:197)
at org.eclipse.persistence.queries.DataReadQuery.executeDatabaseQuery(DataReadQuery.java:152)
at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:829)
at org.eclipse.persistence.queries.DataReadQuery.execute(DataReadQuery.java:137)
at org.eclipse.persistence.queries.DatabaseQuery.executeInUnitOfWork(DatabaseQuery.java:728)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2863)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1501)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1483)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1457)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.executeReadQuery(EJBQueryImpl.java:485)
at org.eclipse.persistence.internal.jpa.EJBQueryImpl.getResultList(EJBQueryImpl.java:742)
at com.duonca.adportal.AdPortalBean.getAdvertisements(AdPortalBean.java:57)
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.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1052)
at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1124)
at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:5366)
at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:619)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:571)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doAround(SystemInterceptorProxy.java:162)
at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:144)
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 com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:861)
at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800)
at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:370)
at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:5338)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:5326)
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:214)
... 39 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT XA.ID, XA.Name, XA.UploadDate, XA.TopicID, XA.Title, XA.Description, XA.I' at line 2
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
at com.mysql.jdbc.Util.getInstance(Util.java:386)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1052)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2293)
at com.sun.gjc.spi.jdbc40.PreparedStatementWrapper40.executeQuery(PreparedStatementWrapper40.java:642)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeSelect(DatabaseAccessor.java:931)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:607)
... 80 more
私はMySQLのワークベンチでのクエリを試してみましたが、それは完璧に働きました。
'（SELECT @row：= 0）AS別名'副問い合わせ – Mchl
私はそれを知らなかったことは実際には可能です。だからあなたはそれをSELECTのFROM部分に追加するか、それはどういう仕組みですか？ – Joni
はい、そうです。私は2つのステートメントを作成し、それは働いています。どうもありがとうございました！ – tungi52