CREATE TABLE Users (
    ID INT PRIMARY KEY AUTO_INCREMENT UNIQUE NOT NULL,
    created_at TIMESTAMP NOT NULL DEFAULT(CURRENT_TIMESTAMP),
    last_modified TIMESTAMP NOT NULL DEFAULT(CURRENT_TIMESTAMP) ON UPDATE CURRENT_TIMESTAMP,

    username VARCHAR(100) NOT NULL UNIQUE,
    userslug VARCHAR(100) NOT NULL UNIQUE,
    work_email VARCHAR(255),
    cell_phone VARCHAR(33) NOT NULL UNIQUE,

    admin_permission BOOLEAN DEFAULT('0') NOT NULL,
    manufacturing_permission BOOLEAN DEFAULT('0') NOT NULL,
    marketing_permission BOOLEAN DEFAULT('0') NOT NULL,
    sales_permission BOOLEAN DEFAULT('0') NOT NULL

);
