4
subjectid SERIAL PRIMARY KEY NOT NULL,
5
subj_code VARCHAR UNIQUE NOT NULL,
6
subj_name VARCHAR NOT NULL,
7
subj_short_name VARCHAR, -- may be null
12
ALTER TABLE offering DROP COLUMN subj_code;
13
ALTER TABLE offering DROP COLUMN subj_name;
14
ALTER TABLE offering DROP COLUMN url;
15
ALTER TABLE offering ADD COLUMN subject INT4 REFERENCES subject (subjectid) NOT NULL;