如何使用 Java 创建多个模式连接?

I have a schema in DB2 database named NAVID. I want to create the same schema with all tables in Oracle using Java.

public class automateExport {
static String value;

public static void main(String[] args) throws SQLException, ClassNotFoundException {
    ResultSet rs = null;
    Connection DB2 = getConnection();
    String sqlstm = "SELECT * FROM SYSCAT.COLUMNS WHERE TABSCHEMA NOT LIKE 'SYS%'";
    PreparedStatement mainStmt = DB2.prepareStatement(sqlstm);
    ResultSet query = mainStmt.executeQuery();        
}

private static Connection  getConnection() throws ClassNotFoundException, SQLException{
    Class.forName("com.ibm.db2os390.sqlj.jdbc.DB2SQLJDriver");
    Connection  connection =
        DriverManager.getConnection("jdbc:db2://localhost:50000/navid","navid","oracle");
    return connection;
 }

我不知道如何选择所有有列的表并在 db2 中创建相同的表.