W
wallie4Gold
Gast
Hallo Leute,
führe ich dies Code aus:
bekomme ich untensstehenden Fehler wegen dieser Zeile:
<-- warum ist das kein sql statement or invalid?
System ist der Datenbankname
führe ich dies Code aus:
Code:
try
{
try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
}
catch (ClassNotFoundException e)
{
e.printStackTrace();
}
myConnection = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "michael", "xxx");
myStatement = myConnection.createStatement();
myStatement.execute("USE system");
}
catch (SQLException e)
{
e.printStackTrace();
}
bekomme ich untensstehenden Fehler wegen dieser Zeile:
Code:
myStatement.execute("USE system");
System ist der Datenbankname
Code:
java.sql.SQLException: ORA-00900: invalid SQL statement
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:305)
at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:272)
at oracle.jdbc.driver.T4C8Oall.receive(T4C8Oall.java:623)
at oracle.jdbc.driver.T4CStatement.doOall8(T4CStatement.java:112)
at oracle.jdbc.driver.T4CStatement.execute_for_rows(T4CStatement.java:474)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1028)
at oracle.jdbc.driver.OracleStatement.execute(OracleStatement.java:1516)
at SqlControl.initConnection(SqlControl.java:41)
at QueryView.actionPerformed(QueryView.java:75)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at org.jvnet.substance.utils.RolloverButtonListener.mouseReleased(RolloverButtonListener.java:109)
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)