CREATE TABLE principals ( id INTEGER PRIMARY KEY ASC NOT NULL, uri TEXT NOT NULL, email TEXT, displayname TEXT, UNIQUE(uri) ); CREATE TABLE groupmembers ( id INTEGER PRIMARY KEY ASC NOT NULL, principal_id INTEGER NOT NULL, member_id INTEGER NOT NULL, UNIQUE(principal_id, member_id) ); INSERT INTO principals (uri,email,displayname) VALUES ('principals/admin', 'admin@example.org','Administrator'); INSERT INTO principals (uri,email,displayname) VALUES ('principals/admin/calendar-proxy-read', null, null); INSERT INTO principals (uri,email,displayname) VALUES ('principals/admin/calendar-proxy-write', null, null);