ALTER TABLE DEGREE ADD COLUMN ECTS_CREDITS double default NULL;

ALTER TABLE DEGREE_CURRICULAR_PLAN ADD COLUMN ECTS_CREDITS double default NULL;
ALTER TABLE DEGREE_CURRICULAR_PLAN CHANGE COLUMN INITIAL_DATE INITIAL_DATE date default '0000-00-00';
ALTER TABLE DEGREE_CURRICULAR_PLAN CHANGE COLUMN DEGREE_DURATION DEGREE_DURATION int(11) default '5';
ALTER TABLE DEGREE_CURRICULAR_PLAN CHANGE COLUMN MINIMAL_YEAR_FOR_OPTIONAL_COURSES MINIMAL_YEAR_FOR_OPTIONAL_COURSES int(11) default '3';
ALTER TABLE DEGREE_CURRICULAR_PLAN CHANGE COLUMN CLASS_NAME CLASS_NAME varchar(255) default NULL;
ALTER TABLE DEGREE_CURRICULAR_PLAN CHANGE COLUMN CLASS_NAME_FOR_STUDENT_CURRICULAR_PLANS CLASS_NAME_FOR_STUDENT_CURRICULAR_PLANS varchar(255) default NULL;
ALTER TABLE DEGREE_CURRICULAR_PLAN DROP COLUMN ACK_OPT_LOCK;
