【题目】在普通应用程序中用JDBC做一个数据库事务，程序片断如下请填空：            
     String driver=“com.informix.jdbc.ifxDriver”；                           
     String url=                                                                
“jdbc：informix-sqli：//11.6.6.11：9002/test：INFORMIXSERVER=ifx”；           
     String user=“informix”；                                                
     String password=“informic”；
 String sql=“update TESTDB set status=‘2’ ”                                 
                                                                                
                                                                                
                                                                                
1                                         
Connection conn=   2                                                                         
Statement stment=conn.createsStatement（）；                                       
Try                                                                       
  {                                                                       
     
3                                                                          ；
  stment .executeUpdate（sql）；                                                 
      4                                                                          
          5             
             6               
      }
     catch（SQLException e）
     {
         try
      {
             7                
             8            
             9                               
        }
       catch（SQLException el）
       { //do nothing}
}