Question

I have a table in mysql that contain a field called template.
I have one template stored in a variable, I need to compare that variable with each of the other templates found in the table until a match is found. I dont know how to retrieve one template from the database row at a time, compare it and if it does not match, move to next row to compare again and so on until match is found. I am new to mysql looping, please help.

Connection con = null;

    try {
        Class.forName("com.mysql.jdbc.Driver");
        con = DriverManager.getConnection("jdbc:mysql://localhost:3306/mydb", "root", "");
        PreparedStatement st;
        st = con.prepareStatement("select template from tbl1 ");

        ResultSet result = st.executeQuery();

        while (result.next()) { 

     String dbTemplate = result.getString("template");
               if x == dbtemplate

                } else {// move to next row? How to say do the loop for next row in table??


                }

Answer 1

result.next() any way gets next row. All you need to do would do condition check inside and if condition satisfied, then only execute the functionality you want.

 while (result.next()) { 
               if(yourConditionSatisfied) {
              //All your logic goes here.  If you want to break the lookup, just add break here.      
            }

     }