Trigger For Multiple Db Update
Oct 30, 2003
I have a messy design that I can't change but need to keep in synch. I have a master table where a person's info is entered into. Upon that entry I have to take that info (name, bdate,ssn,location) and populate it to 4 separate tables in 4 separate databases, all of which have their own id field which has to be incremented (no none of them are identity columns). At the end of the process I have to update the master record with the id fields of all the other four tables. I was going to do this with an insert trigger. As far as protecting the id's across all four databases, I was going to use a begin trans and get the next id field for all four databases and then apply the logic to add the records. Does this seem a safe approach, or am I missing something? Do I need to do a begin tran for each database separately?
THanks
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Apr 15, 2014
I have the following trigger that updates a couple test fields to null when they are 1/1/1900, works great on inserts, and one line updates:
CREATE TRIGGER UpdateDate
ON test
AFTER INSERT, UPDATE
AS
UPDATE Test
SET
[CheckDate] = CASE WHEN [CheckDate] = '19000101' THEN NULL ELSE [CheckDate] END,
[CheckDate2] = CASE WHEN [CheckDate2] = '19000101' THEN NULL ELSE [CheckDate2] END
where AutoID = (select AutoID from inserted)
However, when trying to do a multi line update statement, I get the following error:
Msg 512, Level 16, State 1, Procedure UpdateDate, Line 7
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.The statement has been terminated
How can I get around this?
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May 1, 2001
I have a table which when certain columns are updated, need a trigger to fire to update a next schedule date in that same table for that record. I can write the trigger, but my question for performance and efficiency is which approach would be better. Separate triggers fo the 8 columns, or a large trigger with an If to check if these columns are updated.
Thanks
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Jul 17, 2007
Hello,
Anyone know how to create an update trigger where the primary key isn't fixed.
If the primary key change how can I tie together the Deleted and Inserted tables if more than one row is updated?
/Patrik
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Jan 15, 2015
I have a After insert, update trigger. When I update multiple records with unique constraints column in it update fails. But if this a single record update it works.
Could like to know the reason.
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Jul 20, 2005
Are there any limitations or gotchas to updating the same table whichfired a trigger from within the trigger?Some example code below. Hmmm.... This example seems to be workingfine so it must be something with my specific schema/code. We'reworking on running a SQL trace but if anybody has any input, fireaway.Thanks!create table x(Id int,Account varchar(25),Info int)GOinsert into x values ( 1, 'Smith', 15);insert into x values ( 2, 'SmithX', 25);/* Update trigger tu_x for table x */create trigger tu_xon xfor updateasbegindeclare @TriggerRowCount intset @TriggerRowCount = @@ROWCOUNTif ( @TriggerRowCount = 0 )returnif ( @TriggerRowCount > 1 )beginraiserror( 'tu_x: @@ROWCOUNT[%d] Trigger does not handle @@ROWCOUNT[color=blue]> 1 !', 17, 127, @TriggerRowCount) with seterror, nowait[/color]returnendupdate xsetAccount = left( i.Account, 24) + 'X',Info = i.Infofrom deleted, inserted iwhere x.Account = left( deleted.Account, 24) + 'X'endupdate x set Account = 'Blair', Info = 999 where Account = 'Smith'
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Jan 3, 2005
hi!
I have a big problem. If anyone can help.
I want to retrieve the last update time of database. Whenever any update or delete or insert happend to my database i want to store and retrieve that time.
I know one way is that i have to make a table that will store the datetime field and system trigger / trigger that can update this field record whenever any update insert or deletion occur in database.
But i don't know exactly how to do the coding for this?
Is there any other way to do this?
can DBCC help to retrieve this info?
Please advise me how to do this.
Thanks in advance.
Vaibhav
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Jul 8, 2015
I have a table where table row gets updated multiple times(each column will be filled) based on telephone call in data.
Initially, I have implemented after insert trigger on ROW level thinking that the whole row is inserted into table will all column values at a time. But the issue is all columns are values are not filled at once, but observed that while telephone call in data, there are multiple updates to the row (i.e multiple updates in the sense - column data in row is updated step by step),
I thought to implement after update trigger , but when it comes to the performance will be decreased for each and every hit while row update.
I need to implement after update trigger that should be fired on column level instead of Row level to improve the performance?
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May 30, 2008
Hi,
I am not sure if this is the right forum to post this question.
I run an update statement like "Update mytable set status='S' " on the SQL 2005 management Studio.
When I run "select * from mytable" for a few seconds all status = "S". After a few seconds all status turn to "H".
This is a behaviour when you have an update trigger for the table. But I don't see any triggers under this table.
What else would cause the database automatically change my update?
Could there be any other place I should look for an update trigger on this table?
Thanks,
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Feb 15, 2008
Hello
I've to write an trigger for the following action
When a entry is done in the table Adoscat79 having in the index field Statut_tiers the valeur 1 and a date in data_cloture for a customer xyz
all the entries in the same table where the no_tiers is the same as the one entered (many entriers) should have those both field updated
statut_tiers to 1
and date_cloture to the same date as entered
the same action has to be done when an update is done and the valeur is set to 1 for the statut_tiers and a date entered in the field date_clture
thank you for your help
I've never done a trigger before
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Feb 25, 2015
I need to update multiple columns in a table with multiple condition.
For example, this is my Query
update Table1
set weight= d.weight,
stateweight=d.stateweight,
overallweight=d.overallweight
from
(select * from table2)d
where table1.state=d.state and
table1.month=d.month and
table1.year=d.year
If table matches all the three column (State,month,year), it should update only weight column and if it matches(state ,year) it should update only the stateweight column and if it matches(year) it should update only the overallweight column
I can't write an update query for each condition separately because its a huge select
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Dec 17, 2001
I have an update trigger which fires from a transactiion table to update a parent record in another table. I am getting no errors, but also no update. Any help appreciated (see script below)
create trigger tr_cmsUpdt_meds on dbo.medisp for UPDATE as
if update(pstat)
begin
update med
set REC_FLAG = 2
from deleted dt
where med.uniq_id = dt.uniq_id
and dt.pstat = 2
and dt.spec_flag = 'kop'
end
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May 30, 2008
I am trying to update a fields with an UPDATE statement but I keep getting the error message when I run the query.
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
I have this Update trigger that I know is causing the error message because I guess it's not built to manage multi-row updates.
Can someone help me re-write it. I also tried using the WHERE p.ID = p.ID but when I do that it modifies all rows in the modifieddate column instead of just the cells/rows that I'm updating
ALTER TRIGGER [dbo].[MultitrigCA]
ON [dbo].[ProdDesc]
AFTER UPDATE
AS
SET NOCOUNT ON
IF UPDATE (codeabbreviation)
UPDATE p
sET p.ModifiedDate = GETDATE()
FROM ProdDesc AS p
WHERE p.ID = (SELECT ID FROM inserted)
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Jul 20, 2005
Hi there,I'm a little stuck and would like some helpI need to create an update trigger which will run an update query onanother table.However, What I need to do is update the other table with the changedrecord value from the table which has the trigger.Can someone please show me how this is done please??I can write both queries, but am unsure as to how to get the value ofthe changed record for use in my trigger???Please helpM3ckon*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Apr 3, 2008
hi!
i have a database with about 20 tables. i appended to each table a column "UpdatedOn", and i want to write a trigger to set the date of the update date in that column, using a trigger.
i want to avoid the trigger launching for the last column (UpdatedOn).
how can i detect the rows that changed, and modify only the update date/time?
i read something about TableName_Inserted and TableName_Deleted, but i would prefer to copy as generic as possible the data from there, meaning, not to write column names in my script.
another idea i thought about was to prevent the trigger executing if no other column except for UpdatedOn changed, but... i encounter some trouble, when i try to pass column name (as string) to UPDATE() function.(Error: Expecting ID or QUOTED_ID)
thank you in advance.
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Mar 18, 2005
hi,friends
we show record from multiple table using single 'selectcommand'.
like....
---------
select *
from cust_detail,vend_detail
---------
i want to insert value in multiple database table(more than one) using single 'insert command'.
is it possible?
give any idea or solution.
i want to update value in multiple database table(more than one) using single 'update command'
i want to delete value in multiple database table(more than one) using singl 'delete command'
it is possible?
give any idea or solution.
it's urgent.
thanks in advance.
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Oct 19, 2005
UPDATE #TempTableESR SET CTRLBudEng = (SELECT SUM(Salaries) from ProjectBudget WHERE Project = @Project)UPDATE #TempTableESR SET CTRLBudTravel = (SELECT SUM(Travels) from ProjectBudget WHERE Project = @Project)UPDATE #TempTableESR SET CTRLBudMaterials = (SELECT SUM(Materials) from ProjectBudget WHERE Project = @Project)UPDATE #TempTableESR SET CTRLBudOther = (SELECT SUM(Others) from ProjectBudget WHERE Project = @Project)UPDATE #TempTableESR SET CTRLBudContingency = (SELECT SUM(Contingency) from ProjectBudget WHERE Project = @Project)above is the UPDATE command i am using in one of my stored procedures. I have to SELECT from my ProjectBudget table 5 times to update my #TempTableESR table. is there an UPDATE command i can use which would let me update multiple fields in a table using one SELECT command?
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Jul 20, 2005
I'm having an Employee table with a Salary field. How can we increate thesalary of the employees with following conditions:1) salary between 1000 and 10000 : increase 25%2) salary between 10000 and 20000 : increase 15%3) salary between 20000 and 30000 : increase 5%Surely you can create a cursor to solve this. But the question is, Is itpossible to solve this in a single query, if no what is most optimizedway?
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Apr 6, 2004
Hello All,
I've been adviced without much detail that the best way to handle updates is with an Update Trigger to write to an AuditTable.
I always thought it was better to avoid triggers.
I'm getting confused very fast in reading about triggers.
Could someone please point me in the right direction?
Thank you,
Tina
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Dec 2, 2004
i am using address table to store the address of employees, agents, students; so can't use cascade update and delete. so i decided to use trigger but i got stuck here as well.
Here employeeid is the PK of employee id. so when it is updated, i want to update that id in corresponding address table as well.
so what i need is to find out the previous value of EmployeeID before updating to use in WHERE clause and new EmployeeID to use in SET clause.
<code>
CREATE TRIGGER [AddressUpdate] ON [dbo].[MCS_Employee]
FOR UPDATE
AS
IF UPDATE(EmployeeID)
BEGIN
UPDATE MCS_Address SET EmployeeID = 'i am stuck here; how to know the previous value?
WHERE EmployeeID = ???
END
</end>
ironically, PK in my table can be updateable as well.
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Sep 1, 2005
Hello all. I have a table which is the exact replication of a different table. Now if an update takes place in the original table I want to copy that row into the new table without the update.I have this but I am not sure if it works.Create Trigger Content_Archive on content
For Update
As
Insert Into content_audit Select * From DeletedI dont know if Updated exists so I am using Deleted. It is returning both rows (before and after update). And the insert should take place as soon as an update takes place in any field in the content table.
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Feb 21, 2001
Hello, I have two tables, looks as follow.
TOPIC
------
TOPIC_ID
STATUS_ID
TOPIC
THREAD
-------
THREAD_ID
TOPIC_ID
STATUS_ID
THREAD
THREAD_DATE
NAME
I want to update STATUS_ID in TOPIC when I post a new THREAD.
I guess the best would be to use a trigger?
Don't know much how you write them so if someone please could help or point me in right direction.
My plan is to always show the updated STATUS_ID in TOPIC while I have history in the THREAD TBL.
I am using MS SQL 7.0
Thanks for a great site.
Linkan
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Feb 22, 2001
Hello,
I am new to this and on my way to learning. I hope someone can help me with a trigger. I want to update status of one table when I insert a new threat in another. This is what I have come up with so far.
CREATE TRIGGER [trg_Update_Status] ON tForumThread
FOR INSERT
AS
BEGIN
UPDATE tJournalTopic (STATUS_ID)
SELECT STATUS_ID
FROM Inserted
Thanks,
Linkan
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Dec 17, 2002
I need to be able to select the row or specific field that was updated in an update trigger. I dont have any time-stamp or before-after value columns to compare. Please help!
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Aug 20, 2001
I HAVE TWO TABLES IN THE DATABSE T1 AND THE SECOND TABLE(T2) IS FOR AUDITING.
THE STRUCTURE OF BOTH THE TABLES IS SIMILAR WITH ONE MORE COLUMN 'STATUS' IN THE T2.
I HAVE ALREADY WRITTEN THE TRIGGERS FOR THE INSERT AND DELETE TRIGGERS SO THAT I CAN SAVE THE
RECORD WITH STATUS OF 'NEW INSERT' OR 'DELETE' OR 'UPDATE' IN THE AUDIT TABLE(T2).
HELP ME IN WRITING THE TRIGGER FOR UPDATE.
MY PROBLEM IS I DON'T KNOW HOW TO STORE THE UPDATED COLUMNS VALUES INTO VARIABLES AND SO THAT
I CAN STORE THE OLD VALUES INTO THE AUDIT TABLE(T2).
I M USING SQL SERVER 6.5, SO WE CAN NOT USE COLUMNS_UPDATED() IN THE TRIGGER.
PLEASE SUGGEST ME THE CODE SO THAT I CAN STORE THE OLD ROW IN THE TABLE(T1) TO TABLE (T2)
WITH STATUS 'UPDATE' IN THE T2.
PLEASE SUGGEST ME..ITS URGENT.
THANKS IN ADVANCE
HARISH
=============================
/*test trigger for insert status */
if exists (select * from sysobjects where id = object_id('dbo.tri_t1_insert') and sysstat & 0xf = 8)
drop trigger dbo.tri_t1_insert
GO
CREATE TRIGGER tri_t1_insert ON dbo.t1
FOR INSERT
AS
declare @v1 binary(20),
@v2 varchar(255)
Begin
select @v1=stamp,@v2=name from inserted
insert into t2(stamp,name,status) values(@v1,@v2,'NEW INSERT')
end
GO
========================================
/*test trigger for delete status */
if exists (select * from sysobjects where id = object_id('dbo.tri_t1_delete') and sysstat & 0xf = 8)
drop trigger dbo.tri_t1_delete
GO
CREATE TRIGGER tri_t1_delete ON dbo.t1
FOR delete
AS
declare @v1 binary(20),
@v2 varchar(255)
Begin
select @v1=stamp,@v2=name from deleted
insert into t2(stamp,name,status) values(@v1,@v2,'DELETE')
end
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May 29, 2002
I have an update trigger on a table on my transactional database that inserts a row of data into another database (audit database)for any modification made on the transactional database.
So if i modify a row on tran db it will write the data modified as a new row in the audit db.
This works fine if I am updating only 1 row with each Update statement. However if I update more than 1 row (multiple rows) with the same Update statement, the update trigger only inserts the last row modified in the audit database. So I lose record of any other rows modified with the same update statement.
Is there a way by which i can change my Update trigger or something, so I get all the rows updated by 1 update statement inmy audit database???
Thanks a bunch,
Judy
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Apr 9, 2001
Hello All,
How do I create an update trigger that only updates the record that is being updated?
TIA,
Terry
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Mar 4, 2005
well basically i have a table with 3 columns in a table called TEST like:
TEST1 TEST2 TEST3
------- ------- -------
NULL NULL NULL
these columns can allow nulls. What i whant to do with my trigger is do a after trigger and check after the load if a certain column is NULL place a X instead like a flag but only on the columns that are NULL how would i do this.
plz help
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Oct 14, 2005
Is there a way I can get the old value of a specific field when using an update trigger?
e.g. I want to use the condition 'If Update(Column) '
in odrer to create a logfile which stores the old and new value of a field.
The new value can be get from a Select from Inserted table.
Is there a way I can get the old value (before update) also??
Regards,
Manolis
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Mar 7, 2006
I have created a table with the following columns Jobnumber varchar(20), weight real(4), freightcost money(8), trackingnumber vchar(50), comments varchar(2000) and voidid varchar(3)
I wrote a trigger that updates this data based on the voidid to update the package table as followed:
CREATE TIGGER [UPS] ON dbo.UPSSHIPMENT
FOR INSERT
AS
DECLARE @JOBNUMBER CHAR(20)
DECLARE @WEIGHT REAL(4)
DECLARE @FREIGHTCOST MONEY(8)
DECLARE @TRACKINGNUMBER CHAR(25)
DECLARE @SHIPMETHOD CHAR(50)
DECLARE @voidid char(2)
SELECT @JOBNUMBER=JOBNUMBER,
@WEIGHT=WEIGHT,
@FREIGHTCOST=FREIGHTCOST,
@TRACKINGNUMBER=TRACKINGNUMBER,
@SHIPMETHOD=SHIPMETHOD,
@VOIDID=VOIDID
FROM INSERTED
UPDATE PACKAGE
SET PACKAGE.WEIGHT = @WEIGHT,
PACKAGE.FREIGHTCOST = @FREIGHTCOST,
PACKAGE.TRACKINGNUMBER = @TRACKINGNUMBER,
PACKAGE.COMMENTS = @SHIPMETHOD
WHERE PACKAGE.JOBNUMBER = @JOBNUMBER
AND @VOIDID = 'N'
UPDATE PACKAGE
SET PACKAGE.WEIGHT = '',
PACKAGE.TRACKINGNUMBER = '',
PACKAGE.COMMENTS = 'UPS VOID',
PACKAGE.FREIGHTCOST = ''
WHERE PACKAGE.JOBNUMBER = @JOBNUMBER
AND @VOIDID = 'Y'
I am getting the following error see attached.
Any help would be great Thank you!
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May 10, 2006
Hallo there,
I'm totally new to writing triggers, but managed to get a trigger to update a specific column (ufINCTcost) on change of another column (ufINCKm)
My problem is that the trigger performs this update on ALL rows, which makes it very slow. How can I get it to only update the column on the row where the change was made ?
My trigger looks as follows:
CREATE TRIGGER updateincidents ON [dbo].[_rtblIncidents]
FOR UPDATE, INSERT
AS
IF UPDATE (ufINCKm)
BEGIN
UPDATE dbo._rtblIncidents
SET ufINCTcost=dbo._rtblIncidents.ufINCKm+dbo._rtblInc idents.ufINCToll+dbo._rtblIncidents.ufINCParking+d bo._rtblIncidents.ufINCFlight+dbo._rtblIncidents.u fINCRental
Hope you can help !!
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Nov 11, 2006
Hi,
I've got 2 tables, EMPLOYEE and STORE
The EMPLOYEE table holds all the basic stuff you would want to know about an employee and it contains a STORE_CODE attribute that points to the same attribute in the STORE table (to keep track of the store they work at). The STORE table has the STORE_CODE attribute, a NUM_EMP attribute that keeps track of the number of employees at that store, and some other information that is of no relevance to the question.
I've written the following TRIGGER to update the NUM_EMP attribute in STORE everytime a row is inserted or deleted from EMPLOYEE. It works fine for inserts and deletes but I am clueless as how to make it work for updates (an EMPLOYEE transfers to another store). I appreciate any feedback and please feel free to tell where I've gone wrong so far.
Thanks!
CREATE TRIGGER [UPDATENUMEMP] ON [EMPLOYEE]
FOR INSERT,UPDATE,DELETE
AS
DECLARE @STORECODE INT
DECLARE @NUMEMP INT
/*DELETE CASE*/
IF (NOT EXISTS (SELECT * FROM INSERTED) AND EXISTS (SELECT * FROM DELETED))
BEGIN
DECLARE DELETECURSOR CURSOR FOR
SELECTSTORE_CODE, COUNT(*) AS NUMEMP
FROMDELETED
GROUP BY STORE_CODE
OPEN DELETECURSOR
FETCH NEXT FROM DELETECURSOR INTO @STORECODE, @NUMEMP
WHILE(@@FETCH_STATUS = 0)
BEGIN
UPDATESTORE
SETNUM_EMP = NUM_EMP - @NUMEMP
WHERESTORE_CODE = @STORECODE
FETCH NEXT FROM DELETECURSOR INTO @STORECODE, @NUMEMP
END
CLOSE DELETECURSOR
DEALLOCATE DELETECURSOR
END
/*INSERT CASE*/
IF(EXISTS (SELECT * FROM INSERTED) AND NOT EXISTS (SELECT * FROM DELETED))
BEGIN
DECLARE INSERTCURSOR CURSOR FOR
SELECTSTORE_CODE, COUNT(*) AS NUMEMP
FROMINSERTED
GROUP BY STORE_CODE
OPEN INSERTCURSOR
FETCH NEXT FROM INSERTCURSOR INTO @STORECODE, @NUMEMP
WHILE(@@FETCH_STATUS = 0)
BEGIN
UPDATESTORE
SETNUM_EMP = NUM_EMP + @NUMEMP
WHERESTORE_CODE = @STORECODE
FETCH NEXT FROM INSERTCURSOR INTO @STORECODE, @NUMEMP
END
CLOSE INSERTCURSOR
DEALLOCATE INSERTCURSOR
END
GO
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