Multi-Row Update Trigger

Nov 20, 2007

Hi,

I need to update LastReceivedQty and LastReceivedDate fields in the Product table each time a DeliveryNoteDetail entry is created for a PurchaseOrderDetail line.

DeliveryNote -> DeliveryNoteDetail -> PurchaseOrderDetail -> Product

DeliveryNote has the ReceivedDate
DeliveryNoteDetail has the ReceivedQty

I made the following trigger for handling single row updates, which works fine.

UPDATE Purchasing.Product
SET LastReceivedQty = i.ReceivedQty, LastReceivedDate = dn.ReceivedDate
FROM Purchasing.DeliveryNote dn INNER JOIN
Purchasing.DeliveryNoteDetail dnd ON dn.DeliveryNoteID = dnd.DeliveryNoteID INNER JOIN
inserted i ON dnd.DeliveryNoteDetailID = i.DeliveryNoteDetailID INNER JOIN
Purchasing.PurchaseOrderDetail pod ON dnd.PurchaseOrderDetailID = pod.PurchaseOrderDetailID INNER JOIN
Purchasing.Product p ON pod.VendorVendorProductID = p.VendorVendorProductID

Now I don't know how to handle multi-row situations when the same product is updated.
Since I cannot rely on the order that the updates are performed I need to somehow select the MAX(ReceivedDate).

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Trigger Behaving Differently On Multi-row Update

Aug 1, 2007

Let me set the scene:

I have an update trigger on a table. When a specific column is updated, I get the rowid from 'inserted' and then pass it via service broker to another database that will fire off a maintenance routine at a later time. This whole process seems to work fine if I update a single row at a time through Query Analyzer.

During testing (of the service broker part) I found that if in Query Analyzer I run an update that updates all of the records at once, then the trigger seems to fire only once for the entire process, therefore killing the rest of my process.

I would have thought that regardless of how a record was being updated the trigger would fire atomically for each row.

Any guidance on this would be MOST appreciated!

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How To Create Trigger For Multi Insert Employees Update Tb Employee Once

Jan 24, 2008

how to do this
i have table of employee ,evry employee have a unique ID "empid"
empid VAL_OK
--------------------------
111 0
222 0
333 0

now insert multiple insert to my work_table shifts for all month for evry employee
like this
(this is work_table)
empid date val
--------------------------------------------------
111 01/02/2008 1
111 02/02/2008 2
...............
111 29/02/2008 5
--next employee
222 01/02/2008 1
222 02/02/2008 4
...............
222 29/02/2008 6
--next employee
333
--next employee
444
--next employee
555
-------------------------------------------------------------


now i need for evry OK insert (for all month) each employee
go to the TB_Employee
and update each employee once !!
from VAL_OK=0 to VAL_OK=1
like this

empid VAL_OK
--------------------------
111 1
222 1
333 1
----------------------
like this i know who is the employee have shift for all month and who NOT !

i think it like this



Code Snippet
Create trigger for_insert on tb_work
For insert
begin
if @@rowcount = 1
Update tb_employee
Set
val_ok= 1

else
/* when @@rowcount is greater than 1,
use a group by clause */
Update tb_employee
set
val_ok= 1
select empid from tb_work
group by tb_work.empid

End







TNX

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The Multi Delete && Multi Update - Stored Procedure Not Work Ok

Feb 4, 2008

the stored procedure don't delete all the records
need help



Code Snippet
DECLARE @empid varchar(500)
set @empid ='55329429,58830803,309128726,55696314'
DELETE FROM [Table_1]
WHERE charindex(','+CONVERT(varchar,[empid])+',',','+@empid+',') > 0
UPDATE [empList]
SET StartDate = CONVERT(DATETIME, '1900-01-01 00:00:00', 102), val_ok = 0
WHERE charindex(','+CONVERT(varchar,[empid])+',',','+@empid+',') > 0
UPDATE [empList]
SET StartDate = CONVERT(DATETIME, '1900-01-01 00:00:00', 102), val_ok = 0
WHERE charindex(','+CONVERT(varchar,[empid])+',',','+@empid+',') > 0




TNX

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Help Send An Personal Email From Database Mail On Row Update-stored PROCEDURE Multi Update

May 27, 2008

hi need help how to send an email from database mail on row update
from stored PROCEDURE multi update
but i need to send a personal email evry employee get an email on row update
like send one after one email


i use FUNCTION i get on this forum to use split from multi update

how to loop for evry update send an single eamil to evry employee ID send one email

i update like this


Code Snippet
:

DECLARE @id nvarchar(1000)
set @id= '16703, 16704, 16757, 16924, 17041, 17077, 17084, 17103, 17129, 17134, 17186, 17190, 17203, 17205, 17289, 17294, 17295, 17296, 17309, 17316, 17317, 17322, 17325, 17337, 17338, 17339, 17348, 17349, 17350, 17357, 17360, 17361, 17362, 17366, 17367, 17370, 17372, 17373, 17374, 17377, 17380, 17382, 17383, 17385, 17386, 17391, 17392, 17393, 17394, 17395, 17396, 17397, 17398, 17400, 17401, 17402, 17407, 17408, 17409, 17410, 17411, 17412, 17413, 17414, 17415, 17417, 17418, 17419, 17420, 17422, 17423, 17424, 17425, 17426, 17427, 17428, 17430, 17431, 17432, 17442, 17443, 17444, 17447, 17448, 17449, 17450, 17451'
UPDATE s SET fld5 = 2
FROM Snha s
JOIN dbo.udf_SplitList(@id, ',') split
ON split.value = s.na
WHERE fld5 = 3

now
how to send an EMAIL for evry ROW update but "personal email" to the employee



Code Snippet
DECLARE @xml NVARCHAR(MAX)DECLARE @body NVARCHAR(MAX)
SET @xml =CAST(( SELECT
FirstName AS 'td','',
LastName AS 'td','' ,
SET @body = @body + @xml +'</table></body></html>'
EXEC msdb.dbo.sp_send_dbmail
@recipients =''
@copy_recipients='www@iec.com',
@body = @body,
@body_format ='HTML',
@subject ='test',
@profile_name ='bob'
END
ELSE
print 'no email today'


TNX

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Nov 9, 2007

It appears to update only the first qualifying row. The trace shows a row count of one when there are multiple qualifying rows in the table. This problem does not exist in JDBC 2000.

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Oct 7, 2005

I'm pretty new at T-SQL programming, though I'm pretty familiar with most SQL statements. I'm trying to write an insert trigger that handles a multi-row insert, but I'm avoiding using cursors (which I'll have to resort to if all else fails). I've looked everwhere I can think of for an answer, outside of buying another book, but I can't seem to find a solution. Anyone have a good way I can alter this trigger to accept multirow inserts without using a cursor?Note: The purpose of this trigger is to copy the features of a mobile phone account whenever a new mobile phone account is created (as in this is the information for an invoice, and the mobile account is to be copied and updated for the new invoice each month.)CREATE TRIGGER [copymobilefeatures] ON [dbo].[mobilesub] FOR INSERTAS
insert into #featuresselect i.invoicedate, i.subaccountnumber, i.planid, f.featureidfrom mobilesub m join (inserted i join mobilefeatures f  on i.invoicedate = f.invoicedate )  on m.subaccountnumber = f.subaccountnumber 
insert into mobilefeatures(invoicedate, subaccountnumber, planid, featureid)select * from #featuresI'd love code examples, but a detailed written explaination of what needs to be done might be even more helpful. I'm looking for understanding, not just something I can copy and paste. Thanks!

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Mar 28, 2001

SQL 7 SP3

Hi.

I have a trigger that fires for any updates/deletes/adds and logs information via a sp call.

If I have more than one record, is there a better way to process them other than using a cursor ?

Yes, they have to be processed through the sp.

Thanks,

Craig

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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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Instead Of Trigger Considerations For Multi-Row Insert

Apr 12, 2006

I would like to know how to, if at all possible, to reconstruct the following trigger as to be able to handle multiple row insert when a single insert command is used - because the trigger will only be called once...I'm not familiar and don't know anything about cursors and i've read that its not the best way to go.

TRIGGER ON childtable INSTEAD OF INSERT
AS
BEGIN
DECLARE @customkey char(16);
DECLARE @nextchild int;
DECLARE @parent int;
DECLARE @date datetime;

SET @date = getdate();

SELECT @parent = parenttable FROM inserted;

SELECT @nextchild=count(*)+1 FROM childtable WHERE parenttable = @parent;

IF (@nextchild >= 9998) return;

SET @customkey = €˜type€™+ convert(char(4),year(@date)) + convert(char(2),month(@date)) + convert(char(2),day(@date))+convert(char(4),@nextchild + 1);

INSERT INTO childtable (customkey,parent) VALUES (@customkey,@parent);
END

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Feb 28, 2008

Hi there,

I am looking for a way to define a trigger that is a replacement for a multi-column foreign key.

I know how to a convert a single-column foreign key constraint into a trigger (i.e., to resolve diamond-structured references).

CREATE TABLE parent_tab
(
col_a INTEGER NOT NULL,
CONSTRAINT pk PRIMARY KEY(col_a)
);

CREATE TABLE child_tab
(
col_x INTEGER NOT NULL,
CONSTRAINT fk FOREIGN KEY (col_x) REFERENCES parent_tab(col_a) ON DELETE CASCADE
);

The conversion would remove the foreign key definition and add this trigger:

CREATE TRIGGER tr_single
ON parent_tab INSTEAD OF DELETE
AS BEGIN
DELETE FROM child_tab WHERE (child_tab.col_x IN (SELECT col_a FROM deleted))
DELETE FROM parent_tab WHERE (parent_tab.col_a IN (SELECT col_a FROM deleted))
END;

Unfortunately, now I need to resolve a situation where there is involved a multi-column foreign key.

CREATE TABLE parent_tab
(
col_a INTEGER NOT NULL,
col_b INTEGER NOT NULL,
CONSTRAINT pk PRIMARY KEY(col_a, col_b)
);

CREATE TABLE child_tab
(
col_x INTEGER NOT NULL,
col_y INTEGER NOT NULL,
CONSTRAINT fk FOREIGN KEY (col_x, col_y) REFERENCES parent_tab(col_a, col_b) ON DELETE CASCADE
);

This does not work, because the temporary table "deleted" might contain more than one row. How do I make sure that the values belong to the same row?

-- incorrect trigger, might delete too many rows
CREATE TRIGGER tr_single
ON parent_tab INSTEAD OF DELETE
AS BEGIN
DELETE FROM child_tab WHERE (child_tab.col_x IN (SELECT col_a FROM deleted) AND child_tab.col_y IN (SELECT col_b FROM deleted))
DELETE FROM parent_tab WHERE (parent_tab.col_a IN (SELECT col_a FROM deleted) AND parent_tab.col_b IN (SELECT col_b FROM deleted))
END;

-- some magic needed :-)
CREATE TRIGGER tr_single
ON parent_tab INSTEAD OF DELETE
AS BEGIN
DELETE FROM child_tab WHERE (child_tab.col_x IN (SELECT col_a FROM deleted AS t1) AND child_tab.col_y IN (SELECT col_b FROM deleted AS t2) AND row_id(t1) = row_id(t2))
DELETE FROM parent_tab WHERE (parent_tab.col_a IN (SELECT col_a FROM deleted AS t1) AND parent_tab.col_b IN (SELECT col_b FROM deleted AS t2) AND row_id(t1) = row_id(t2))
END;

I know the trigger definition above is ***... but I hope that it helps to make clear what I need.

Btw., I use SQL Server 2005.

Thanks in advance,

slowjoe

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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.
 
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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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Jan 5, 2004

Hi All,

I am trying to update a huge table with about 70 million records and the table do not have a primary key.

I want to update a "FLAG" field in the table with value 'N' default value of flag fields for all records is NULL.

I want to update the whole table in chunks say 50,000 records a time...

like
update tablename (first 50000)
set flag = 'N' where flag = NULL.

Hope I am clear..:-)

thanks
hardlyworking..

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Sep 27, 2006

I'm a newbie have trouble using the "inserted" table in a trigger. When I run these SQL statements:CREATE DATABASE foobarGOUSE foobar GOCREATE TABLE foo ( fooID int IDENTITY (1, 1) NOT NULL, lastUpdated datetime, lastValue int, PRIMARY KEY(fooID))GOCREATE TABLE bar ( barID int IDENTITY (1, 1) NOT NULL, fooID int NOT NULL, [value] int NOT NULL, updated datetime NOT NULL DEFAULT (getdate()), primary key(barID), foreign key(fooID) references foo (fooID))GOCREATE TRIGGER onInsertBarUpdateFoo ON Bar FOR INSERTAS UPDATE Foo SET lastUpdated = inserted.updated, lastValue = inserted.[Value] WHERE foo.fooID = inserted.fooIDGO

I get the error message:

Msg 4104, Level 16, State 1, Procedure onInsertBarUpdateFoo, Line 4
The multi-part identifier "inserted.fooID" could not be bound.

I can get the trigger to work fine as long as I don't reference "inserted".

What am I missing?

I'm using Microsoft SQL Server Management Studio Express 9.00.2047.00 and SQL Express 9.0.1399

Thanks in advance for your help...
Larry

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May 26, 2004

Being an access guy, I am having a hard time understanding why I can't do a join statement on an UPDATE?

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Aug 24, 2007

Hi,
I have the following case:-

File a(transaction File)__File b(summary File)___File c(summary)
acctno___Value DB/CR_____Acctno DB,CR_______acctno DB,CR
1___________100db___________1______________________1
1___________300cr___________2______________________2
1___________600db
2___________700db

I want to update the account on table b and c from table a.

My current update is just for one table as follows:-
UPDATE amaster
SET cmdb = cmdb +
(SELECT SUM(transact.damt) AS Expr1
FROM transact
WHERE (acctno = amaster.acctno)
GROUP BY acctno),
cmcr = cmcr +
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thanks

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May 30, 2008

Hi,
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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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Jul 23, 2005

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Dec 17, 2001

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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
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May 30, 2008

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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
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Jul 20, 2005

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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)

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May 25, 2008

hi need help
i have this stored procedure
the problem is that
i canot update like this not more than 20 - 30 rows
(i send it from a web page from check box)
it work but it limited rows for update not more than 20 - 30 rows
in one time



Code Snippet
SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [sto_update_snha]
@id varchar(1000)
as
UPDATE Snha
SET fld5 = 3
WHERE charindex(','+CONVERT(varchar,[id])+',',','+@id+',') > 0 AND (fld5 = 2)




TNX

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Feb 5, 2008


spaces problem on multi update delete stored procedure
on the the insert i get it like this


58830803, 55329429, 308962604, 55696314, 309128726



as you see only the first empid=58830803 is without spaces
how to fix this
my code




Code Snippet
DECLARE @empid varchar(500)
set @empid ='58830803, 55329429, 308962604, 55696314, 309128726'
DELETE FROM [Table_1]
WHERE charindex(','+CONVERT(varchar,[empid])+',',','+@empid+',') > 0
UPDATE [empList]
SET StartDate = CONVERT(DATETIME, '1900-01-01 00:00:00', 102), val_ok = 0
WHERE charindex(','+CONVERT(varchar,[empid])+',',','+@empid+',') > 0
UPDATE [empList]
SET StartDate = CONVERT(DATETIME, '1900-01-01 00:00:00', 102), val_ok = 0
WHERE charindex(','+CONVERT(varchar,[empid])+',',','+@empid+',') > 0




TNX

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Apr 6, 2004

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Dec 2, 2004

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<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

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As
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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

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I guess the best would be to use a trigger?
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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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