CREATE TABLE users (
    id            SERIAL         PRIMARY KEY,
    username      VARCHAR(256)   NOT NULL,
    password      VARCHAR(256)   NOT NULL,
    securitycode  VARCHAR(3)     NOT NULL,
    timestamp     TIMESTAMP      NOT NULL
);

CREATE TABLE implants (
    id            SERIAL         PRIMARY KEY,
    name          VARCHAR(256)   NOT NULL,
    info          VARCHAR(256)   NOT NULL,
    ownername     VARCHAR(256)   NOT NULL,
    timestamp     TIMESTAMP      NOT NULL
);

ALTER TABLE users ALTER COLUMN timestamp SET DEFAULT now();
ALTER TABLE implants ALTER COLUMN timestamp SET DEFAULT now();