title: Turn off backup for an "Azure database for MySql server" resource
body: <p>I have an "Azure database for MySql server" resource.
  The database size is 2.5GB.<br>
  The backup size is 143GB.<br>
  This has added 10€ to my last invoice, but i'm mostly concerned about how large can it grow in the future, when the application will go from TEST to LIVE.<br>
  The backup is already set to the minimum retention time (7 days).<br>
  I did not found any option to turn the backup off (as it doesn't add much value to my application, for most of the tables it's pointless to have a backup), or anything that could reduce its size.
  The only thing i can think of is to reduce the WRITE operations, but meh, is this really what i'm supposed to do for a backup size issue?</p>
  
  <p>For those wondering, backups are taken every few minutes and it's possible to restore the situation at any moment in the the past configured time span (from 7 to 30 days, 7 days in my case), so i guess that what is making the database grow are WRITE(insert,update,delete) operations.</p>