ALTER TABLE project_task ADD COLUMN duration int; ALTER TABLE project_task ALTER COLUMN duration SET DEFAULT 0; UPDATE project_task SET duration=0; ALTER TABLE project_task ADD COLUMN parent_id int; ALTER TABLE project_task ALTER COLUMN parent_id SET DEFAULT 0; UPDATE project_task SET parent_id=0; DROP VIEW project_task_vw; CREATE VIEW project_task_vw AS SELECT project_task.*,project_category.category_name,project_status.status_name,users.user_name,users.realname FROM project_task FULL JOIN project_category ON (project_category.category_id=project_task.category_id) FULL JOIN users ON (users.user_id=project_task.created_by) NATURAL JOIN project_status; ALTER TABLE project_dependencies ADD COLUMN link_type char(2); ALTER TABLE project_dependencies ALTER COLUMN link_type SET DEFAULT 'SS'; UPDATE project_dependencies SET link_type='SS'; DROP VIEW project_dependon_vw; DROP VIeW project_depend_vw; CREATE VIEW project_depend_vw AS SELECT pt.project_task_id,pd.is_dependent_on_task_id,pd.link_type,pt.end_date,pt.start_date FROM project_task pt NATURAL JOIN project_dependencies pd; CREATE VIEW project_dependon_vw AS SELECT pd.project_task_id,pd.is_dependent_on_task_id,pd.link_type,pt.end_date,pt.start_date FROM project_task pt FULL JOIN project_dependencies pd ON (pd.is_dependent_on_task_id=pt.project_task_id);