create TRIGGER trig_dev
ON TAB_GPSDEV
FOR INSERT,update,delete
NOT FOR REPLICATION
AS
BEGIN
set NOCOUNT ON
begin
insert into tab_user_dev (user_id,dev_id,chg_action)
select a.user_id,a.dev_id,0 from
(select c.user_id,d.dev_id from tab_user_cargroup c
inner join deleted d on c.group_id = d.group_id
inner join tab_users u1 on c.user_id = u1.user_id
where u1.user_stat = 0) a
left outer join
(select c.user_id,i.dev_id from tab_user_cargroup c
INNER JOIN inserted i on c.group_id = i.group_id
inner join tab_users u1 on c.user_id = u1.user_id
where u1.user_stat = 0) b
on a.user_id = b.user_id and a.dev_id = b.dev_id where isnull(b.user_id,-1)=-1
end
begin
insert into tab_user_dev (user_id,dev_id,chg_action)
select a.user_id,a.dev_id,1 from
(select c.user_id,i.dev_id from tab_user_cargroup c
inner join inserted i on c.group_id = i.group_id
inner join tab_users u1 on c.user_id = u1.user_id
where u1.user_stat = 0) a
left outer join
(select c.user_id,d.dev_id from tab_user_cargroup c
INNER JOIN deleted d on c.group_id = d.group_id
inner join tab_users u1 on c.user_id = u1.user_id
where u1.user_stat = 0) b
on a.user_id = b.user_id and a.dev_id = b.dev_id where isnull(b.user_id,-1)=-1
end
if update(device_stat)
begin
insert into tab_user_dev (user_id,dev_id,chg_action)
select a.user_id,c.dev_id,0 from tab_users a
inner join tab_user_cargroup b on a.user_id = b.user_id
inner join tab_gpsdev c on c.group_id = b.group_id
inner join tab_users u1 on a.user_id = u1.user_id
where u1.user_stat = 0 and
c.dev_id in (select dev_id from inserted where device_stat = 1)
end
if update(device_stat)
begin
insert into tab_user_dev (user_id,dev_id,chg_action)
select a.user_id,c.dev_id,1 from tab_users a
inner join tab_user_cargroup b on a.user_id = b.user_id
inner join tab_gpsdev c on c.group_id = b.group_id
inner join tab_users u1 on a.user_id = u1.user_id
where u1.user_stat = 0 and
c.dev_id in (select dev_id from inserted where device_stat = 0)
end
SET NOCOUNT OFF
END
------解决方案--------------------
create TRIGGER trig_dev BEFORE INSERT,UPDATE,DELETE
ON TAB_GPSDEV
FOR EACH ROW
AS
BEGIN
IF INSERTING THEN
insert into tab_user_dev (user_id,dev_id,chg_action)
select a.user_id,a.dev_id,0 from
(select c.user_id,d.dev_id from tab_user_cargroup c
inner join deleted d on c.group_id = d.group_id
inner join tab_users u1 on c.user_id = u1.user_id
where u1.user_stat = 0) a
left outer join
(select c.user_id,i.dev_id from tab_user_cargroup c
INNER JOIN inserted i on c.group_id = i.group_id
inner join tab_users u1 on c.user_id = u1.user_id
where u1.user_stat = 0) b