Why is “while (rs.next())” necessary here?

Question

I want to select the maximum line number from my database \"Logs\" and store it in a variable m.

Here\'s my code:

ResultSet rs          


        

Answer 1

You can convert this to use a simple if statement instead.

if(rs.next()) {
    // other code here
}

You would use while when you have more than one row to bring back.