title: Grant user permission using wildcard on MYSQL
body: <p>I'd like to grant for example an select permission for specific user in all databases on my server started by WA_ for example in my server</p>
  
  <p>I make the following syntax but it dosent work</p>
  
  <pre><code>grant select on `wa\_%`.`mytable` 
  to 'myuser'@'localhost' 
  identified by '123456';
  </code></pre>
  
  <p>but it gives me this error </p>
  
  <blockquote>
    <p>Table wa_%.mytable' doesn't exist</p>
  </blockquote>