A MySql database is set up where a user can input new row entries via a form. Each row has an id column which is auto-incremented by 1. Suppose a user enters a spam or nonsensical entry, and suppose that row generated gets an id# of 215. By the time admin catches it, rows are already at 300. Admin wants to delete row #215 from the db. Do the following rows keep their values, or does the row that was 216 become 215, and so forth? If not, is there a way to reassign the following rows so that there is not a gap for 215, therefore without breaking continuity in the numerical sequence of rows?