-- +migrate Up -- -- accounts -- create table accounts ( id integer primary key, username string not null unique, password string not null, token string not null unique, created_at datetime not null default(strftime('%Y-%m-%d %H:%M:%f', 'now')), updated_at datetime not null default(strftime('%Y-%m-%d %H:%M:%f', 'now')), constraint chk_username check (username <> ''), constraint chk_password check (username <> ''), constraint chk_token check(token <> '') );