title: Multiple select statements in Single query
body: <p>I am generating a report in php (mysql),</p>
  
  <p>ex:</p>
  
  <pre><code>`select count(id) as tot_user from user_table
   select count(id) as tot_cat from cat_table
   select count(id) as tot_course from course_table`
  </code></pre>
  
  <p>Like this I have 12 tables.</p>
  
  <p>Can i make it in single query. If i did? Process gets slow?</p>