text: CREATE TABLE unit
  (
    id          INT AUTO_INCREMENT PRIMARY KEY,
    name        VARCHAR(255) NOT NULL,
    status      TINYINT      NOT NULL DEFAULT 1,
    comment     TEXT,
    created_at  TIMESTAMP             DEFAULT CURRENT_TIMESTAMP,
    modified_at TIMESTAMP             DEFAULT CURRENT_TIMESTAMP,
    created_by  VARCHAR(256)          DEFAULT NULL,
    updated_by  VARCHAR(256)          DEFAULT NULL
  ) ENGINE = INNODB DEFAULT CHARSET=utf8mb4 COLLATE =utf8mb4_unicode_520_ci;
  