sql server问题

Question

我在用eclipse写java 程序，我现在用sqlserver有两个问题！
一是  to_date方法，我用参数，但是总是报错，不知道什么原因。
二是 我在修改数据库后，刷新，报错rows update failed,用oracle没问题！

Answer 1

date如果导入的是java.sql.Date是需要参数的,如果导入的java.util.Date的话是不需要参数的

Answer 2

对sqlserver用result.updateRow();更新数据库显示如下的错误，而我用oracle时并没有抱错，各位大哥有没有碰到过这样的问题 阿，给小弟指导一下 谢了阿 java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Row update failed.
 at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
 at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
 at com.microsoft.jdbc.base.BaseImplUpdatableResultSet.executeStatement(Unknown Source)
 at com.microsoft.jdbc.base.BaseImplUpdatableResultSet.updateRow(Unknown Source)
 at com.microsoft.jdbc.base.BaseResultSet.updateRow(Unknown Source)
 at com.inspur.main.view.UserListTableModel.setValueAt(UserListTableModel.java:174)
 at javax.swing.JTable.setValueAt(Unknown Source)
 at javax.swing.JTable.editingStopped(Unknown Source)
 at javax.swing.AbstractCellEditor.fireEditingStopped(Unknown Source)
 at javax.swing.DefaultCellEditor$EditorDelegate.stopCellEditing(Unknown Source)
 at javax.swing.DefaultCellEditor.stopCellEditing(Unknown Source)
 at javax.swing.JTable$GenericEditor.stopCellEditing(Unknown Source)
 at javax.swing.plaf.basic.BasicTableUI$Handler.mousePressed(Unknown Source)
 at java.awt.AWTEventMulticaster.mousePressed(Unknown Source)
 at java.awt.Component.processMouseEvent(Unknown Source)
 at javax.swing.JComponent.processMouseEvent(Unknown Source)
 at java.awt.Component.processEvent(Unknown Source)
 at java.awt.Container.processEvent(Unknown Source)
 at java.awt.Component.dispatchEventImpl(Unknown Source)
 at java.awt.Container.dispatchEventImpl(Unknown Source)
 at java.awt.Component.dispatchEvent(Unknown Source)
 at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
 at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
 at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
 at java.awt.Container.dispatchEventImpl(Unknown Source)
 at java.awt.Window.dispatchEventImpl(Unknown Source)
 at java.awt.Component.dispatchEvent(Unknown Source)
 at java.awt.EventQueue.dispatchEvent(Unknown Source)
 at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
 at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
 at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
 at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
 at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
 at java.awt.EventDispatchThread.run(Unknown Source)