insert into groups_users ( uuid, user_uuid, group_uuid ) values ( #{uuid,jdbcType=VARCHAR}, #{userUuid,jdbcType=VARCHAR}, #{groupUuid,jdbcType=VARCHAR} ) select gu.user_uuid from groups_users gu where gu.group_uuid=#{groupUuid,jdbcType=VARCHAR} select gu.uuid as uuid, gu.user_uuid as userUuid, gu.group_uuid as groupUuid from groups_users gu order by gu.group_uuid, gu.user_uuid select count(1) from groups_users gu 1=1 AND gu.uuid=#{query.uuid, jdbcType=VARCHAR} AND gu.user_uuid=#{query.userUuid, jdbcType=VARCHAR} AND gu.group_uuid=#{query.groupUuid, jdbcType=VARCHAR} delete from groups_users where user_uuid = #{userUuid,jdbcType=VARCHAR} and group_uuid = #{groupUuid,jdbcType=VARCHAR} delete from groups_users where group_uuid = #{groupUuid,jdbcType=VARCHAR} DELETE FROM groups_users WHERE user_uuid=#{userUuid,jdbcType=VARCHAR}