Self Join « Join « SQL / MySQL






  1. SQL / MySQL
  2. Join
  3. Self Join
1.Determine which senders sent themselves a message is to use a self-join
2.The self-join can be extended to display the number of days elapsed at each date
3.To calculate cumulative distance in kilometers at each stage, use a self-join
4.Eliminating Duplicates from a Self-Join Result