title: double datatype in mysql
body: <p>I am defining one of my column's length as <strong>double(16,2)</strong> . Here 16 is not fixed. But, 2 is fixed. Though display length(16) will vary depending on calculation. So I want to make it variable length.</p>
  <p>Now my question is - Is there any way to define only floating point no (i.e. 2 from my example) and display length(16) as variable? Because I don't want to occupy unnecessary space.</p>