Is this mysql query right or wrong?

   "select full_name from user u join user_contact_info ui on ui.user_id=u.user_id,
   ui.user_contact_state, ui.user_contact_city_town, ui.user_contact_country where 
   u.full_name like '"+keyWord+"%'" + "and u.user_id = "+id;

from my user u table I want the fullname and from my user_contac开发者_JAVA技巧t_info table ui i want the state city and country.

Am i writing the join query to get all the values based on the id. I want to know whether am writing the query correctly or not. If wrong How should i write it. Please help me writing join query.

Also in result set how to get the values if i am using a single table I will write my rs as

  if(rs.next()){
  User user = new User();
  user.setFullname(rs.get(full_name);
  }

In case of using a second join table how to get and set the values in my object.

"select u.full_name, ui.user_contact_state, ui.user_contact_city_town, ui.user_contact_country 
from user u 
left outer join user_contact_info ui on ui.user_id=u.user_id 
where u.full_name like '"+keyWord+"%'" + "and u.user_id = "+id 

Note: you probably do not need the full_name comparison in your WHERE clause, as I assume user_id is unique per user, so will get you the correct record.

The query below should be all you need:

"select u.full_name, ui.user_contact_state, ui.user_contact_city_town, ui.user_contact_country 
from user u 
left outer join user_contact_info ui on ui.user_id=u.user_id 
where u.user_id = "+id