edin.no-ip.com

Prepare schema:

1. Check target fields (http://edin.no-ip.com/node/166).
   a. No default + NOT NULL => can't accept NULL so valid value only (1 status only)
   b. Default with '' => remove
2. Update schema with "NOT NULL => FALSE, (remove default)".
3. Running update.php. Ensure schema is valid.
4. Run related simpletest.

Once schema ready for expert install:

1. ORACLE_NULL => NULL
2. Before insert: check '' => NULL (!?)
3. Before normal variable binding: '' => NULL
4. check SQL syntax, change from = '' to IS NULL

Testing procedure:

1. expert mode -> patch -> update
2. normal mode -> patch -> update
3. normal mode + all modules -> patch -> update
4. patch -> install -> all modules