SELECT u.*, d.name AS dealer_name FROM crm_user u LEFT JOIN crm_dealer d ON u.dealer_id = d.id WHERE u.username = #{username} SELECT u.*, d.name AS dealer_name FROM crm_user u LEFT JOIN crm_dealer d ON u.dealer_id = d.id WHERE u.id = #{id} SELECT u.*, d.name AS dealer_name FROM crm_user u LEFT JOIN crm_dealer d ON u.dealer_id = d.id ORDER BY u.created_at DESC INSERT INTO crm_user (username, password, real_name, dealer_id, role, status) VALUES (#{username}, #{password}, #{realName}, #{dealerId}, #{role}, #{status}) UPDATE crm_user password = #{password}, real_name = #{realName}, dealer_id = #{dealerId}, role = #{role}, status = #{status}, WHERE id = #{id} DELETE FROM crm_user WHERE id = #{id}