在MySQL數據庫中選擇

Question

只有從rs.getString 1中選擇結果後才能在下一行顯示rs.getString2 1？

Statement statement = con.createStatement(); 
    ResultSet rs = statement.executeQuery("select * from state"); 
    while (rs.next()){ 
     System.out.println(rs.getString(1) + " " +rs.getString(2)); 

Answer 1

Statement statement = con.createStatement(); 
ResultSet rs = statement.executeQuery("select * from state"); 
while (rs.next()){ 
    StringBuilder br = new StringBuilder(); 
    br.append(rs.getString(1)); //print the column 1 in the current row 
    br.append(" "); //add space 
    rs.next(); //move to the next row 
    br.append(rs.getString(2)); //print the column 2 in the next row 
    rs.previous(); //go back to the current row of this current iteration 
    System.out.println(br.toString()); //print 
}