title: Why not to use BLOB, CLOB and XML data types?
body: <p>In the company I work for data administrators dislike using large data types. It doesn't matter the DBMS we are working with. As an alternative the ask developers to store data in file system or some kind of storage. If those types exist so why can't developers use it to store metadata? Are there any plausible reason?</p>
  
  <p><strong>EDIT:</strong>
  In my case I need to store system configuration. I mean very small data. 95% of records are about 50 kbytes and sometimes about 128 kbytes. No images just information.
  There is a rule of thumb here that you shall not use those data types at all and I cannot understand. Maybe folks here can explain why.</p>
  
  <p>I believe that this happens on other companies also so please don't close my question.</p>