Can u suggest more efficient way

Question

hi
i have strings like
insert into drmandi_trans (drmt_mandi_code,drmt_commodity_code,drmt_qty_arrived,drmt_morning_price_max,drmt_morning_price_min,drmt_evening_price_max,drmt_evening_price_min,DRMT_Tran_date) values ('MD_INMPBPL003','MD_COM_001', 0,0,0,0,0,#8/3/2001#)
and
update drmandi_trans set drmt_qty_arrived = 012 ,drmt_morning_price_max = 012 , drmt_morning_price_min = 012 ,drmt_evening_price_max = 012 ,drmt_evening_price_min= 012 where drmt_mandi_code = 'MD_INMPBPL003' and drmt_commodity_code = 'MD_COM_002' and drmt_tran_date =#8/3/2001#
i want them to be
insert into drmandi_trans (drmt_mandi_code,drmt_commodity_code,drmt_qty_arrived,drmt_morning_price_max,drmt_morning_price_min,drmt_evening_price_max,drmt_evening_price_min,DRMT_Tran_date) values ('MD_INMPBPL003','MD_COM_001', 0,0,0,0,0,'8/3/2001')
update drmandi_trans set drmt_qty_arrived = 012 ,drmt_morning_price_max = 012 , drmt_morning_price_min = 012 ,drmt_evening_price_max = 012 ,drmt_evening_price_min= 012 where drmt_mandi_code = 'MD_INMPBPL003' and drmt_commodity_code = 'MD_COM_002' and drmt_tran_date ='8/3/2001'
i wrote following method for it and pass these strings to it as parameter
public static String changeForSqlServer(String command)
       StringTokenizer st=new StringTokenizer(command,",=(#)",true);
          StringBuffer sqlServerVersion=new StringBuffer();
          String previousToken="";
          String nextToken="";
          String token="";
          while(st.hasMoreTokens()) 
               token=st.nextToken().trim();
               System.out.println("01 p->"+previousToken+"t->"+token+"n->"+nextToken);                         
               if(token.equals("#"))
                    if(previousToken.equals(",")||previousToken.equals("(")||previousToken.equals("="))
                         System.out.println("1. p->"+ previousToken+"t->"+token+"n->"+nextToken);
                         sqlServerVersion.append("'");
                         previousToken=token;
                         System.out.println("2. p->"+ previousToken+"t->"+token+"n->"+nextToken);
                    else
                         if(st.hasMoreTokens())
                                   nextToken=st.nextToken().trim();
                                   System.out.println("3. p->"+ previousToken+"t->"+token+"n->"+nextToken);
                                   if(nextToken.equals(",")||nextToken.equals(")"))
                                   System.out.println("4 p->"+previousToken+"t->"+token+"n->"+nextToken);                         
                                        sqlServerVersion.append("'").append(nextToken);
                                   System.out.println("5 "+previousToken+"  "+token+"  "+nextToken);                              
                                   else
                                        sqlServerVersion.append(token).append(nextToken);
                                   previousToken=nextToken;
                                   System.out.println(sqlServerVersion);
                         else
                              sqlServerVersion.append("'");
                              return sqlServerVersion.toString();
               else
                    if(!token.equals(""))
                         previousToken=token;
                         sqlServerVersion.append(token);
          return sqlServerVersion.toString();
  }although this method does above task i feel that there may be many improvements possible to make it fastest algorithm.
it will be helpful if u can suggest improvements in this code
or suggest some better algorithms
thanks

Answer 1

Could you simplify what excactly your trying to acheive here? Form the look of it, your doing the job of the JDBC. You should consider reading the JDBC doccumentation or buying a book. You should check for the PreparedStatements wich allow you to set predefined Statements with Variable inputs fields.
Check out :
http://java.sun.com/j2se/1.3/docs/guide/jdbc/index.html