title: Is there a way to make an entire MySQL row unique
body: <p>I have a table in MySQL with 30 columns and thousands of entries.<br>
  Is there a way I could make every row unique, that means if a row already exists, I should not be able to enter that row again.  </p>
  
  <p>I can't use primary or unique keys here, because individually every column might be repeated.<br>
  I want the row to be unique.
  for example:-There are is a table with </p>
  
  <pre><code>columns-&gt;name,age,height,weight.
  </code></pre>
  
  <p>In this column I can't make any one or two columns unique but I should not have two entries with all the same data.</p>