title: mysql query "SHOW COLUMNS FROM table like 'colmunname'":questions
body: <p>I have a question about <code>SHOW COLUMNS FROM table like 'column name'"</code>. 
  I have already tried some tests for some times, it seems be similar like "where <code>column name='column'</code>. </p>
  
  <p>However, I just would like to confirm 
  thank u very much in advance. </p>
  
  <p>Also, I'd like to say, why cannot I use <code>SHOW COLUMNS FROM table = 'columnname'</code> ?</p>