Multi-insert Trigger

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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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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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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Multi-rec Processing In A Trigger & Sp

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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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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Trigger - Require Help For Updating A Trigger Following An INSERT On Another Table

Oct 30, 2007

Table 1





First_Name

Middle_Name

Surname


John

Ian

Lennon


Mike

Buffalo

Tyson


Tom

Finney

Jones

Table 2




ID

F

M

S

DOB


1

Athony

Harold

Wilson

24/4/67


2

Margaret

Betty

Thathcer

1/1/1808


3

John

Ian

Lennon

2/2/1979


4

Mike

Buffalo

Tyson

3/4/04


5

Tom

Finney

Jones

1/1/2000


I want to be able to create a trigger that updates table 2 when a row is inserted into table 1. However I€™m not sure how to increment the ID in table 2 or to update only the row that has been inserted.

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Trigger - Require Help For Updating A Trigger Following An INSERT On Another Table

Feb 5, 2008

A





ID

Name


1

Joe


2

Fred


3

Ian


4

Bill


B





ID


1


4

I want to be able to create a trigger so that when a row is inserted into table A by a specific user then the ID will appear in table B. Is it possible to find out the login id of the user inserting a row?

I believe the trigger should look something like this:

create trigger test_trigger
on a
for insert
as
insert into b(ID)

select i.id
from inserted i
where
--specific USER

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Converting Multi-column Referential Constraint Into A Trigger

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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Interaction Between Instead Of Insert Trigger And Output Clause Of Insert Statement

Jan 14, 2008


This problem is being seen on SQL 2005 SP2 + cumulative update 4

I am currently successfully using the output clause of an insert statement to return the identity values for inserted rows into a table variable

I now need to add an "instead of insert" trigger to the table that is the subject of the insert.

As soon as I add the "instead of insert" trigger, the output clause on the insert statement does not return any data - although the insert completes successfully. As a result I am not able to obtain the identities of the inserted rows

Note that @@identity would return the correct value in the test repro below - but this is not a viable option as the table in question will be merge replicated and @@identity will return the identity value of a replication metadata table rather than the identity of the row inserted into my_table

Note also that in the test repro, the "instead of insert" trigger actually does nothing apart from the default insert, but the real world trigger has additional code.

To run the repro below - select each of the sections below in turn and execute them
1) Create the table
2) Create the trigger
3) Do the insert - note that table variable contains a row with column value zero - it should contain the @@identity value
4) Drop the trigger
5) Re-run the insert from 3) - note that table variable is now correctly populated with the @@identity value in the row

I need the behaviour to be correct when the trigger is present

Any thoughts would be much appreciated

aero1


/************************************************
1) - Create the table
************************************************/
CREATE TABLE [dbo].[my_table](
[my_table_id] [bigint] IDENTITY(1,1) NOT NULL,
[forename] [varchar](100) NULL,
[surname] [varchar](50) NULL,
CONSTRAINT [pk_my_table] PRIMARY KEY NONCLUSTERED
(
[my_table_id] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF, FILLFACTOR = 70) ON [PRIMARY]
)

GO
/************************************************
2) - Create the trigger
************************************************/
CREATE TRIGGER [dbo].[trig_my_table__instead_insert] ON [dbo].[my_table]
INSTEAD OF INSERT
AS
BEGIN

INSERT INTO my_table
(
forename,
surname)
SELECT
forename,
surname
FROM inserted

END

/************************************************
3) - Do the insert
************************************************/

DECLARE @my_insert TABLE( my_table_id bigint )

declare @forename VARCHAR(100)
declare @surname VARCHAR(50)

set @forename = N'john'
set @surname = N'smith'

INSERT INTO my_table (
forename
, surname
)
OUTPUT inserted.my_table_id INTO @my_insert
VALUES( @forename
, @surname
)

select @@identity -- expect this value in @my_insert table
select * from @my_insert -- OK value without trigger - zero with trigger

/************************************************
4) - Drop the trigger
************************************************/

drop trigger [dbo].[trig_my_table__instead_insert]
go

/************************************************
5) - Re-run insert from 3)
************************************************/
-- @my_insert now contains row expected with identity of inserted row
-- i.e. OK

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Can't Access Inserted Table From Trigger; Msg 4104 The Multi-part Identifier ... Could Not Be Bound.

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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Mar 11, 2008

I have a SQL2k5 table capturing transaction via an online vendor application. I need to join this data with cooresponding data that exist within a 2003 MS Access .MDB application. I've had recent training in SQL Serv 2005 T-SQL and programming. This is what I'm planning but not if this is the best/simple plan.

write After Insert trigger for SQL tbl to invoke a sp
write After Insert trigger for SQL tbl to invoke a sp (OK with this) write a sp to select last inserted record from SQL tbl (OK with this)
sp will use pk_col to pull data from linked MS Access 2003 using OPENQUERY or four part naming (is one way better than the other?)
insert Parent record into MS Access parent tbl (after insert, how can i get Parent Key from this insert to use as Child FK col? will @@identity work?)
insert Child record into MS Access child tbl (how can i get Child Key from this insert to use as GrandChild FK col? @@identity?)
insert GrandChild record into MS Access GrandChild table



any help greatly appreciated!
Thanks for being there....


Tom

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Mar 1, 2004

Hi

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When I provide multiple insert SQL then only first insert works while rest insert statements does not work

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Jan 14, 2005

Hi.

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Tax Detail Table Exchange Table

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Thank for your answer.

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Nov 28, 2005

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)

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Oct 22, 2007

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ON people
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END
ELSE BEGIN
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END
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Jan 27, 2004

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Mar 2, 2004

So... dear friends
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May 4, 2008

I have an EMPLOYEE table and DEPARTMENT table, i have to create one to many relationship where one employee can be in many departments, please guide me

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create table department (d_id INTEGER, d_name varchar(30))

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May 18, 2008

I'm having table as below,
StudentEnroll_Thismonth
TransID(AutoNumber) | StudentID | Subject | TransDate
------------------------------------------------
1 | 0021 | A890 | 4/1/2008
2 | 0021 | A830 | 4/1/2008
3 | 0025 | A890 | 4/1/2008
4 | 0025 | A112 | 4/1/2008
5 | 0026 | A545 | 4/1/2008
.............
.............
99 | 0021 | A900 | 4/30/2008
100 | 0021 | A902 | 4/30/2008
101 | 0025 | A900 | 4/30/2008
*The table above contains what subject taken by student

Let's say, GETDATE()=5/1/2008
If execute Trans-SQL below,
INSERT INTO StudentEnroll_ThisMonth(StudentID,Subject,TransDate) values(0023,'B328',GETDATE())

How the trigger looks like to make sure the data in table shown as follow,
StudentEnroll_Thismonth
TransID(AutoNumber) | StudentID | Subject | TransDate
-----------------------------------------------------------
120 | 0023 | B328 | 5/1/2008
*All the previous month record move to StudentEnroll_PreviousMonth automatically

StudentEnroll_PreviousMonth
TransID(AutoNumber) | StudentID | Subject | TransDate
------------------------------------------------
..................
..................
..................
200 | 0021 | A890 | 4/1/2008
201 | 0021 | A830 | 4/1/2008
203 | 0025 | A890 | 4/1/2008
204 | 0025 | A112 | 4/1/2008
205 | 0026 | A545 | 4/1/2008
.................
.................
301 | 0021 | A900 | 4/30/2008
302 | 0021 | A902 | 4/30/2008
303 | 0025 | A900 | 4/30/2008

Anyone can help me to show the trigger?

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