From: sono-io Date: June 7 2011 1:24am Subject: Data missing after field optimization List-Archive: http://lists.mysql.com/mysql/225187 Message-Id: MIME-Version: 1.0 (Apple Message framework v1084) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Hopefully I won't look like too much of a numbskull here but = after reading some sites on table optimization, I decided to remove the = NULL as default on the fields in my products table. I thought = everything went well until I realized that we hadn't received any orders = for 2 days. That's when I realized that my products table was empty! = Luckily this happened over the weekend. =3D:\ I've made changes to field types before and never had a problem = like this. Does anyone know what went wrong from my limited = description? Why would removing the NULL default cause data to be lost? Thanks, Marc=