Dynamic generated web sites often cause problems with search engines. Dynamic website design, generally not crawled by search engines. What should a web designer do to make his website search engine friendly? What should a web designer or search engine optimizer do to optimize his website? Does his web site never indexed and never ranked? If your web pages are dynamically created from the database, it's likely that many search engines have difficulty to crawl and index them.
Advantage of dynamic web site
Many search engines like Google for example don't like dynamically created pages because the crawlers might get in an infinite loop on your server if they follow dynamically created