UPDATE Filename SET Name='' WHERE Name=' ';
-alter table file alter column filenameid rename to filenameid-old;
+alter table file rename column filenameid to filenameidold;
alter table file add column filenameid integer;
-update file set filenameid = filenameid-old;
+update file set filenameid = filenameidold;
alter table file alter column filenameid set not null;
-alter table file drop column filenameid-old;
+alter table file drop column filenameidold;
DELETE FROM Version;
INSERT INTO Version (VersionId) VALUES (8);