ys in a way very similar to a CAS (check and set) operation. This is documented later in this manual page.<h2><a name="Usage">Usage</a></h2>A Redis transaction is entered using the MULTI command. The command always
replies with OK. At this point the user can issue multiple commands. Instead
of executing these commands, Redis will &quot;queue&quot; them. All the commands are
executed once EXEC is called.<br/><br/>Calling DISCARD instead will flush the transaction queue and will exit
the transaction.<br/><br/