I am working on updating of table
Table : User(id,name,Dob,createdDate,lastUpdatedDate)
I want to update lastUpdatedDate when there is change in Name column.
firstly I used update trigger but that is execute after updating of records
some helping link suggest me to use instead of Update trigger but if I use that one it will not update my records after trigger.
any solution?
well I found suitable solution for this problem
in after update trigger there are two table sets one is Inserted and other one is Deleted.
so by getting name from both table sets we can campare there values. if there value is same we will not update lastUpdatedDate and if there is any difference in values then we will update lastUdpatedDate
Create TRIGGER [dbo].[User__Update]
ON [dbo].[User]
AFTER Update
AS
BEGIN
SET NOCOUNT ON;
declare #AttributeValue varchar(max)
declare #OldAttributeValue varchar(max)
SELECT #AttributeValue = INSERTED.Name
FROM INSERTED
select #OldAttributeValue=Deleted.Name
FROM Deleted
if(#OldAttributeValue<>#AttributeValue)
BEGIN
IF UPDATE(Name)
BEGIN
update [User] set LastUpdatedDate=GetDate() where name =#AttributeValue
END
END
END
Related
I'm going to create a trigger for update. Purpose of this trigger is that If muadurum column is changed , take the old value of mua_tarih in table fkayitlar and insert to another table mua_tarihleri.
My code block like;
ALTER TRIGGER [dbo].[trgr_fkayit_update]
ON [dbo].[fkayitlar]
AFTER UPDATE
AS
DECLARE #mua_durum_once NVARCHAR(10)
DECLARE #mua_durum_sonra NVARCHAR(10)
DECLARE #mua_tarih_once DATE
DECLARE #mua_yapan_once NVARCHAR(25)
DECLARE #kisi_id INT
Take the old value;
SELECT
#kisi_id=kayitid,
#mua_durum_once=muayenedurum,
#mua_tarih_once=muayenetarih,
#mua_yapan_once=mua_yapan
FROM deleted
Take the new value;
SELECT #mua_durum_sonra=muayenedurum FROM inserted
Check if value is changed ; if changed, Insert #mua_tarih to table mua_tarihleri with #kisi_id and #mua_yapan_once
IF #mua_durum_once='OLDU'
AND #mua_durum_sonra='OLMADI'
AND #mua_tarih_once IS NOT NULL
BEGIN
INSERT INTO mua_tarihleri(kayitid,mua_tarihi,mua_yapan)
VALUES(#kisi_id,#mua_tarih_once,#mua_yapan_once)
END
My problem is When I update more than one row in table fkayitlar,Trigger is working, but I see only one inserted row in table mua_tarihleri (only working once). I need to see more than one.(should be working more than once) Are not Triggers working on more than one process? or How can I solve this my problem?
The trigger only occurs once when the table is updated, no matter how many rows are updated. Therefore, you have to write your trigger body to operate on a set of rows, not a single row as you have done.
Should be something like:
ALTER TRIGGER [dbo].[trgr_fkayit_update]
ON [dbo].[fkayitlar]
AFTER UPDATE
AS
INSERT INTO mua_tarihleri(kayitid,mua_tarihi,mua_yapan)
SELECT deleted.kayitid, deleted.muayenedurum, deleted.muayenetarih, deleted.mua_yapan
FROM deleted
JOIN inserted ON deleted.kayitid = inserted.kayitid
WHERE deleted.muayenedurum='OLDU'
AND inserted.muayenedurum='OLMADI'
AND muayenetarih IS NOT NULL
I am using SQL Server 2008. I want to create a trigger for update which will fire on update of user table.
Trigger functionality: replace user_tbl updated mobile number to user_work_tbl.
CREATE TRIGGER [dbo].[tr_User_Modified]
ON [dbo].[user_tbl]
AFTER UPDATE
AS BEGIN
SET NOCOUNT ON;
DECLARE #MobileNo varchar(11)
IF UPDATE (mobile_no)
BEGIN
DECLARE #MobileNo VARCHAR(50)
SELECT #MobileNo = mobile_no
FROM [dbo].user_tbl
UPDATE [dbo].[user_work_tbl]
SET mobile_no = #MobileNo
WHERE [dbo].[user_work_tbl].mobile_no = #oldMobileNo // here I have a problem
END
END;
In the comment "here I have a problem" I need a mobile number which exists in user_tbl before update so that the only row of user_work_tbl gets updated.
Any suggestions to do this are also accepted.
Thanks for your all response
You need to join three tables together in your trigger - user_work_tbl, inserted and deleted. However, its not clear at the moment exactly what conditions are required:
CREATE TRIGGER [dbo].[tr_User_Modified]
ON [dbo].[user_tbl]
AFTER UPDATE
AS BEGIN
SET NOCOUNT ON;
IF UPDATE (mobile_no)
BEGIN
UPDATE u
SET mobile_no=i.mobile_no
FROM user_work_tbl u
inner join
deleted d
on u.mobile_no = d.mobile_no
inner join
inserted i
on
i.PKCol = d.PKCol --What's the PK of user_tbl?
END
END;
inserted and deleted are pseudo-tables that contain the new and old rows that were affected by a particular statement, and have the same schema as the original table. They're only accessible from within the trigger.
Note, also, that the above trigger is correct, even when multiple rows are updated in user_tbl - provided you can correctly relate inserted and deleted in the final ON clause.
You can get the old phone number from the table deleted and the new one from inserted, but you should use user primary key the update the rows.
I have created a trigger as below:
CREATE TRIGGER InsertUpdateATLastViewedMatch
ON dbo.AT_LastViewedMatch
FOR INSERT,UPDATE
AS
BEGIN
SET NOCOUNT ON;
-- update statements for trigger here
declare #id1 int, #matchFK int;
select #id1 = i.id from inserted i;
select #matchFK=i.AT_MatchFk from inserted i;
update dbo.AT_LastViewedMatch set matchId = #matchFK where id = #id1;
END
GO
While this trigger works- I am not able to update the value of the matchId column directly from SQLManager:
If I execute
UPDATE AT_LastViewedMatch set matchId='1179619' where id=5762
for example, I am still seeing the old value for matchId. I think the issue is related to the above trigger (since if I drop the trigger, it works). Is there a way to get past this?
From your trigger definition below, you have created it for insert and update
CREATE TRIGGER InsertUpdateATLastViewedMatch
ON dbo.AT_LastViewedMatch
FOR INSERT,UPDATE <-- Here
so essentially, whenever you are running an update statement from SSMS
UPDATE AT_LastViewedMatch set matchId='1179619' where id=5762
Your trigger performing the below line and setting it to old value
update dbo.AT_LastViewedMatch set matchId = #matchFK where id = #id1;
You need to remove that update from your trigger definition
CREATE TRIGGER InsertUpdateATLastViewedMatch
ON dbo.AT_LastViewedMatch
FOR INSERT
I created computer audit application. When I ran my application, it shows computer accessories on browser like computerName, osVersion, lastAudit, model, totalMemory, processor, userName.
I have created a database in SQL Server 2008 with one table Computers. When a value is inserted into that table, I need to update the table value in the column. In an attempt to try this, I'm using a trigger. However, I do not fully understand how triggers work.
Can someone please show me how to accomplish this.
My table has these columns:
id, computerName, osVersion, lastAudit, model, totalMemory, processor, userName
I know that in this code something wrong or missing but I am not able to complete this. Please help me in this regard.
CREATE TRIGGER update_trigger
ON computers
AFTER UPDATE
AS
BEGIN
declare #id as int
declare #computerName as varchar(100)
declare #osVersion as varchar(100)
declare #lastAudit as datetime
declare #model as varchar(100)
declare #totalMemory float
declare #processor as varchar(100)
declare #userName as varchar(100)
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
if update(id)
BEGIN
insert into computers values(#id,#computerName,#osVersion,#lastAudit,#model,
#totalMemory,#processor,#userName,'Update')
SET NOCOUNT ON;
END
GO
If you want to simply update one or more columns of your existing table when new rows are being inserted (or when they are updated? Not quite clear...), try a trigger like this:
CREATE TRIGGER trigUpdateTable
ON dbo.Computers
AFTER INSERT -- or AFTER UPATE or AFTER INSERT, UPDATE
AS
BEGIN
-- do whatever you want to do on INSERT and/or UPDATE
UPDATE
dbo.Computers
SET
LastAudit = GETDATE()
FROM
dbo.Computers c
INNER JOIN
Inserted i ON c.id = i.id
One very important point to remember: SQL Server triggers are not called per row that is affected - but per statement, and if your INSERT or UPDATE statement affects multiple rows, you'll have multiple entries in the Inserted pseudo table and you need to be able to deal with that fact in your trigger
I have two triggers After Insert or Update and Instead of Insert. It appears that the after trigger is not running or sending the correct data.
I have verified the correct operation of Z_UpdateStageTable stored procedure and the Instead of Insert trigger. Removing the Instead of Insert trigger doesn't have any affect. The After Insert, Update trigger was working correctly at one time, I haven't made any changes to it. I have tried deleting it and adding it, but it still doesn't run or have the correct data.
Any Ideas?
Instead of Insert:
ALTER TRIGGER [DeleteExistingFilter]
ON [dbo].[Z_MobileSyncFilters]
INSTEAD OF INSERT
AS
BEGIN
SET NOCOUNT ON;
DELETE FROM Z_MobileSyncFilters WHERE UserID = (SELECT UserID FROM INSERTED);
INSERT INTO Z_MobileSyncFilters
SELECT *
FROM INSERTED;
END
After Insert, Update:
TRIGGER [UpdateStageTable]
ON [dbo].[Z_MobileSyncFilters]
AFTER INSERT,UPDATE
AS
BEGIN
SET NOCOUNT ON;
DECLARE #AllWos AS VARCHAR(5000);
DECLARE #PmWos AS VARCHAR(5000);
DECLARE #RepWos AS VARCHAR(5000);
SET #AllWos = (SELECT AllWos FROM INSERTED);
SET #RepWos = (SELECT AllWos FROM INSERTED);
SET #PmWos = (SELECT AllWos FROM INSERTED);
EXEC Z_UpdateStageTable #AllWos;
EXEC Z_UpdateStageTable #RepWos;
EXEC Z_UpdateStageTable #PmWos;
END
Is there a typo in the SET part of the AFTER trigger? You're selecting the same thing into three different variables.
Rather than confirming the behavior of Z_UpdateStageTable, I'd try to replace it with something dirt simple (a parameterless sql statement, say) to test whether the trigger's being called. It's possible that the sproc's not being called with what you think it's being called with.
You can add PRINT statements to the trigger and manually insert from ManagementStudio/Enterprise Manager to see where the trigger fails.
I see a problem when you insert multiple records in a single statement, as the SELECT FROM Inserted will return more than 1 record.
You can also update the SET statement to SELECT #Var = AllWos FROM Inserted
Hold on a second, if userid is your PK then Z_MobileSyncFilters will not have data yet, this is also an instead of trigger
this wholw block doesn't do anything really, why do you need this trigger?
DELETE FROM Z_MobileSyncFilters WHERE UserID = (SELECT UserID FROM INSERTED);
INSERT INTO Z_MobileSyncFilters
SELECT *
FROM INSERTED;
you second trigger is flawed because it will faile if you have a multi row operation
why do you have 2 insert trigger (1 instead 1 after) on this table?