ALTER TABLE Images ADD COLUMN created datetime ;
ALTER TABLE Images ADD COLUMN imgtype VARCHAR(32) DEFAULT '' NOT NULL;
ALTER TABLE Images ADD COLUMN linkurl VARCHAR(254) DEFAULT '' NOT NULL;
-ALTER TABLE Images ADD COLUMN descript TEXT DEFAULT '' ;
+ALTER TABLE Images ADD COLUMN descript TEXT NOT NULL;
ALTER TABLE Images ADD COLUMN title VARCHAR(128) DEFAULT '' NOT NULL;
ALTER TABLE Images CHANGE COLUMN mimetype mimetype varchar(128) NOT NULL default '';