title: Buffer table in a database, Good or not?
body: <p>I have a question !</p>
  
  <p>I need to make a university project, and in this project i will have one database table like this :</p>
  
  <p><a href="https://i.stack.imgur.com/Agz4B.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Agz4B.png" alt="enter image description here"></a></p>
  
  <p>This table will have a LOT of records !!!!!!
  And for manage this i need to create a validation system.</p>
  
  <p>What is the best (and why) between create a buffer table like this : </p>
  
  <p><a href="https://i.stack.imgur.com/rZpRz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/rZpRz.png" alt="enter image description here"></a></p>
  
  <p>Or add a column in my table like this : </p>
  
  <p><a href="https://i.stack.imgur.com/sUNu4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sUNu4.png" alt="enter image description here"></a></p>
  
  <p>Thank you !</p>