text: CREATE TABLE campaign
  (
    id_campaign                     BIGSERIAL       NOT NULL PRIMARY KEY,
    id_stakeholder                  BIGINT          REFERENCES stakeholder (id_stakeholder),
    description_campaign            VARCHAR(255)    UNIQUE NOT NULL,
    startdate_campaign              TIMESTAMP       NOT NULL DEFAULT (now() AT TIME ZONE 'utc'),
    enddate_campaign                TIMESTAMP       NOT NULL DEFAULT (now() AT TIME ZONE 'utc'),
    status_campaign                 VARCHAR(255)    UNIQUE NOT NULL
  );
  --;;
  