SELECT COUNT（*）FROM（SELECT）AS子查詢工作在MS Access但不是在JDBC

Question

我的查詢：

SELECT COUNT(*) 
FROM 
    (SELECT 
     dealerCode, 
     SUM(kg) AS totalKG, 
     SUM(price) AS totalPrice, 
     returnDate, BID 
    FROM meatReturns 
    GROUP BY BID, dealerCode, returnDate) 

這種運作良好，在MS Access查詢設計，但它不能在JDBC工作。

該查詢在其ResultSet中獲得Syntax error in FROM clause。

任何替代品，或解釋到這一個？

UPDATE：

這裏是我的代碼：

private int getRowCount(String query){ 
     int size = 0; 
     try { 
      query = query.replace(";", ""); 
      query = "SELECT COUNT(*) FROM (" + query +") AS subQuery;"; 

      System.out.println(query); 

      Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 
        String db = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ=E:/EACA_AgroVentures1.accdb"; 
        conn = DriverManager.getConnection(db); 
        stmt = conn.prepareStatement(query,ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE); 


      ResultSet rs = stmt.executeQuery(); // ERROR HERE 
      rs.beforeFirst(); 
      while(rs.next() && rs!=null){ 
       size = rs.getInt(1); 
       System.out.println("Size : "+size); 
      } 
     } catch (ClassNotFoundException ex) { 
      ex.printStackTrace(); 
     } catch (SQLException ex) { 
      ex.printStackTrace(); 
     } 
     return size; 
    } 

，這裏是錯誤代碼：

java.sql.SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error in FROM clause. 

    at sun.jdbc.odbc.JdbcOdbc.createSQLException(JdbcOdbc.java:6964) 
    at sun.jdbc.odbc.JdbcOdbc.standardError(JdbcOdbc.java:7121) 
    at sun.jdbc.odbc.JdbcOdbc.SQLExecDirect(JdbcOdbc.java:3117) 
    at sun.jdbc.odbc.JdbcOdbcStatement.execute(JdbcOdbcStatement.java:337) 
    at sun.jdbc.odbc.JdbcOdbcStatement.executeQuery(JdbcOdbcStatement.java:252) 
    at sun.jdbc.odbc.JdbcOdbcResultSet.calculateRowCount(JdbcOdbcResultSet.java:6352) 
    at sun.jdbc.odbc.JdbcOdbcResultSet.initialize(JdbcOdbcResultSet.java:154) 
    at sun.jdbc.odbc.JdbcOdbcStatement.getResultSet(JdbcOdbcStatement.java:423) 
    at sun.jdbc.odbc.JdbcOdbcPreparedStatement.executeQuery(JdbcOdbcPreparedStatement.java:92) 
    at com.eaca.MainFrame.getRowCount(MainFrame.java:139) 
    at com.eaca.MainFrame.connectToDBWithRows(MainFrame.java:171) 
    at com.eaca.MainFrame.loadMR(MainFrame.java:350) 
    at com.eaca.MainFrame.access$600(MainFrame.java:65) 
    at com.eaca.MainFrame$ChangeTab.stateChanged(MainFrame.java:486) 
    at javax.swing.JTabbedPane.fireStateChanged(JTabbedPane.java:416) 
    at javax.swing.JTabbedPane$ModelListener.stateChanged(JTabbedPane.java:270) 
    at javax.swing.DefaultSingleSelectionModel.fireStateChanged(DefaultSingleSelectionModel.java:132) 
    at javax.swing.DefaultSingleSelectionModel.setSelectedIndex(DefaultSingleSelectionModel.java:67) 
    at javax.swing.JTabbedPane.setSelectedIndexImpl(JTabbedPane.java:616) 
    at javax.swing.JTabbedPane.setSelectedIndex(JTabbedPane.java:591) 
    at javax.swing.plaf.basic.BasicTabbedPaneUI$Handler.mousePressed(BasicTabbedPaneUI.java:3644) 
    at java.awt.Component.processMouseEvent(Component.java:6502) 
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3320) 
    at java.awt.Component.processEvent(Component.java:6270) 
    at java.awt.Container.processEvent(Container.java:2229) 
    at java.awt.Component.dispatchEventImpl(Component.java:4861) 
    at java.awt.Container.dispatchEventImpl(Container.java:2287) 
    at java.awt.Component.dispatchEvent(Component.java:4687) 
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832) 
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4489) 
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422) 
    at java.awt.Container.dispatchEventImpl(Container.java:2273) 
    at java.awt.Window.dispatchEventImpl(Window.java:2719) 
    at java.awt.Component.dispatchEvent(Component.java:4687) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735) 
    at java.awt.EventQueue.access$200(EventQueue.java:103) 
    at java.awt.EventQueue$3.run(EventQueue.java:694) 
    at java.awt.EventQueue$3.run(EventQueue.java:692) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87) 
    at java.awt.EventQueue$4.run(EventQueue.java:708) 
    at java.awt.EventQueue$4.run(EventQueue.java:706) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:705) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) 
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:91) 
Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 
    at com.eaca.MainFrame.connectToDBWithRows(MainFrame.java:185) 
    at com.eaca.MainFrame.loadMR(MainFrame.java:350) 
    at com.eaca.MainFrame.access$600(MainFrame.java:65) 
    at com.eaca.MainFrame$ChangeTab.stateChanged(MainFrame.java:486) 
    at javax.swing.JTabbedPane.fireStateChanged(JTabbedPane.java:416) 
    at javax.swing.JTabbedPane$ModelListener.stateChanged(JTabbedPane.java:270) 
    at javax.swing.DefaultSingleSelectionModel.fireStateChanged(DefaultSingleSelectionModel.java:132) 
    at javax.swing.DefaultSingleSelectionModel.setSelectedIndex(DefaultSingleSelectionModel.java:67) 
    at javax.swing.JTabbedPane.setSelectedIndexImpl(JTabbedPane.java:616) 
    at javax.swing.JTabbedPane.setSelectedIndex(JTabbedPane.java:591) 
    at javax.swing.plaf.basic.BasicTabbedPaneUI$Handler.mousePressed(BasicTabbedPaneUI.java:3644) 
    at java.awt.Component.processMouseEvent(Component.java:6502) 
    at javax.swing.JComponent.processMouseEvent(JComponent.java:3320) 
    at java.awt.Component.processEvent(Component.java:6270) 
    at java.awt.Container.processEvent(Container.java:2229) 
    at java.awt.Component.dispatchEventImpl(Component.java:4861) 
    at java.awt.Container.dispatchEventImpl(Container.java:2287) 
    at java.awt.Component.dispatchEvent(Component.java:4687) 
    at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832) 
    at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4489) 
    at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422) 
    at java.awt.Container.dispatchEventImpl(Container.java:2273) 
    at java.awt.Window.dispatchEventImpl(Window.java:2719) 
    at java.awt.Component.dispatchEvent(Component.java:4687) 
    at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735) 
    at java.awt.EventQueue.access$200(EventQueue.java:103) 
    at java.awt.EventQueue$3.run(EventQueue.java:694) 
    at java.awt.EventQueue$3.run(EventQueue.java:692) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87) 
    at java.awt.EventQueue$4.run(EventQueue.java:708) 
    at java.awt.EventQueue$4.run(EventQueue.java:706) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) 
    at java.awt.EventQueue.dispatchEvent(EventQueue.java:705) 
    at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) 
    at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) 
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) 
    at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) 
    at java.awt.EventDispatchThread.run(EventDispatchThread.java:91) 

Answer 1

您的問題來自這樣一個事實

1. 子查詢是一個聚合離子查詢（用SUM()功能和GROUP BY條款），所以由Access數據庫引擎返回的結果集是不可更新，並

2. 在prepareStatement通話

   指定ResultSet.TYPE_SCROLL_SENSITIVE。

這些條件相互衝突，導致錯誤。試試這個：

stmt = conn.prepareStatement(query, 
     ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY); 
ResultSet rs = stmt.executeQuery(); 
// rs.beforeFirst(); // (disabled)