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Trigger After Delete - I Need A Trigger Before Delete


hello,
I googled around some time but I found no solution for this issue
(SS2000).

I have a table tblB which has to be filled whenever in table tblA
records are inserted, updated or deleted.
So I created one trigger which works fine for inserts and updates and
fills my tblB. tblB is filled with other fields which I get from a
view vwC. This view vwC is based on a key field used in tblA.

The issue is about this view. When in tblA a record is deleted, the
corresponding record in vwC does not exist and I can't fill tblB. I
tried around with INSTEAD OF -Trigger and got error message because
tblA has RI cascades so this is not possible. A temp table could be
the right way? Can you show me an example?

thanks
--
candide_sh


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SQL - Cascading Delete, Or Delete Trigger, Maintaining Referential Integrity - PLEASE HELP ME!!!
I am having great difficulty with cascading deletes, delete triggers and referential integrity.
 
The database is in First Normal Form.
 
I have some tables that are child tables with two foreign keyes to two different parent tables, for example:

               Table A
            /               
  Table B                Table C
                           /
                Table D
 
So if I try to turn on cascading deletes for A/B, A/C, B/D and C/D relationships, I get an error that I cannot have cascading delete because it would create multiple cascade paths. I do understand why this is happening. If I delete a row in Table A, I want it to delete child rows in Table B and table C, and then child rows in table D as well. But if I delete a row in Table C, I want it to delete child rows in Table D, and if I delete a row in Table B, I want it to also delete child rows in Table D.
 
SQL sees this as cyclical, because if I delete a row in table A, both table B and table C would try to delete their child rows in table D.
 
Ok, so I thought, no biggie, I'll just use delete triggers. So I created delete triggers that will delete child rows in table B and table C when deleting a row in table A. Then I created triggers in both Table B and Table C that would delete child rows in Table D.
 
When I try to delete a row in table A, B or C, I get the error "Delete Statement Conflicted with COLUMN REFERENCE". This does not make sense to me, can anyone explain? I have a trigger in place that should be deleting the child rows before it attempts to delete the parent row...isn't that the whole point of delete triggers?????
 
This is an example of my delete trigger:
 
CREATE TRIGGER [DeleteA] ON A
FOR DELETE
AS
Delete from B where MeetingID = ID;
Delete from C where MeetingID = ID;
 
And then Table B and C both have delete triggers to delete child rows in table D. But it never gets to that point, none of the triggers execute because the above error happens first.
 
So if I then go into the relationships, and deselect the option for "Enforce relationship for INSERTs and UPDATEs" these triggers all work just fine. Only problem is that now I have no referential integrity and I can simply create unrestrained child rows that do not reference actual foreign keys in the parent table.
 
So the question is, how do I maintain referential integrity and also have the database delete child rows, keeping in mind that the cascading deletes will not work because of the multiple cascade paths (which are certainly required).
 
Hope this makes sense...
Thanks,
Josh
 
 
 

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Trigger After Delete - I Would Need A Trigger Before Delete
hello,I googled around some time but I found no solution for this issue(SS2000).I have a table tblB which has to be filled whenever in another tabletblA records are inserted, updated or deleted.So I created one trigger which works fine for inserts and updates andfills my tblB. tblB is filled with other fields which I get from aview vwC.The issue is about this view. When in tblA a record is deleted, thecorresponding record in vwC does not exist and I can't fill tblB. Itried around with INSTEAD OF -Trigger and got error message becausetblA has RI cascades so this is not possible. A temp table could bethe right way? Can you show me an example?thanks--candide_sh

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Help With Delete Trigger
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I have a SQL statement that deletes a lot of records in a table (PACCESOS_DET) and a Trigger that fires for delete on the table.
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For each row deleted I need to update a column in another table (PACCESOS_CAB).
This the trigger...

CREATE TRIGGER ActualizaDiasVisita ON dbo.PACCESOS_DET
FOR DELETE
AS
declare @mdias as int
declare @mFKFeria as int
declare @mtipo as char(1)
declare @mfkcontacto as varchar(7)

if exists( select * from PACCESOS_CAB m join deleted i on m.FKFeria= i.FKFeria and m.FKContacto=i.FKContacto and m.Tipo=i.Tipo)
begin
select @mfkferia=m.fkferia, @mfkcontacto = m.fkcontacto, @mtipo = m.tipo, @mdias = diasvisita from PACCESOS_CAB m join deleted i on m.FKFeria= i.FKFeria and m.FKContacto=i.FKContacto and m.Tipo=i.Tipo
update PACCESOS_CAB set diasvisita = @mdias -1 where FKFeria= @mFKFeria and FKContacto=@mFKContacto and Tipo=@mTipo
end




Thanks in advanced.

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since I am using the view in vb to fill a grid, i am trying to set up a INSTEAD OF DELETE trigger to delete any records in ProjectedOutputs that may be deleted from my grid. Although the records are deleting OK, so are the records in Output, which i dont want. i am not sure how to stop this, or to see if my trigger is actually firing, I would appreiciate any suggestions

CREATE TRIGGER Test
ON V_ProjectOutputs
INSTEAD OF DELETE
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DELETE PROJECTEDOUTPUTS
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Here follows the code. Hopefully anybody can help me with this problem.

SQL-statement:

Function getDeleteRequestSQL(ByRef strRequestId As String) As String
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GetConnection cnConn
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And finaly the trigger:

create trigger td_thmld2 on thmld2 for delete as
begin
declare
@numrows int,
@errno int,
@errmsg varchar(255)

select @numrows = @@rowcount
if @numrows = 0
return

select @numrows = (select count(*) from trigstat with (nolock) )
if @numrows > 0
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save transaction trans_td_thmld2 <-- REASON FOR ERROR?

/* delete all children in "thmstat" */
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/* delete all children in "thmldlk1" */
delete thmldlk1
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For SQL Server 6.5.
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To elaborat more,
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any ideas, I appreciate your help.

Thanks

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Ex:

                           emp                                                                      emp_personal

           emp_id    emp_name   emp_basic                     emp_id       emp_address

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              102          Vijay             35,000                              102             South Africa

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Is it possible with triggers?

Thanx - Nagu

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Inserting into OrderRebateHistory Table.
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Right now my code will insert the record. Then when another record gets inserted the previous record is deleted.

CREATE TRIGGER [DeletefromOrderRebateHistory] ON [dbo].[OrderRebateHistory]
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DELETE OrderRebateHistory
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Hi,
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table B with key id and foreing key A.name,A.version.

The realtion A to B is 1:n

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Thank you

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id,
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alpha,
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accessalerts,
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fwdrequired,
roadaccess,
createdate,
lastupdatedate,
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I want to create a trigger which will move the record which is deleted from SiteDirections over to SiteDirectionsDeleted. I have created the following trigger called "DeleteDirections" as follows.


CREATE TRIGGER [DeleteDirections] ON SiteDirections
FOR DELETE
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SELECT id, siteid, alpha, advancenotice, keys, accessalerts, directions, approxtraveltime, buildingtype, fwdrequired, roadaccess, createdate, lastupdatedate, lastupdatedby, createdby, parking, dirid, lastupdate, newid, action
FROM sitedirections


The trigger passes through the syntax check but instead of just moving over the single record that is deleted from SiteDirections over to SiteDirectionsDeleted it ends up moving all the content of SiteDirections into SiteDirections delted.

What do I need to change so I only move over the respective deleted record from SiteDirections to SiteDirectionsDeleted?

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rssd
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I've got a ContactInfo table, that stores a variety of information about a contact (i.e. first/last name, address, phone, date of birth, status, etc.). I seem to be randomly loosing contacts though. Older backup's of my database still show a given contact, but the current one doesn't. It's happened a few times, and I can't seem to track what's causing it. (Nothing that I'm doing *should* be causing the contact to be deleted).
 
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Creating A Delete/insert Trigger
I am trying to create a trriger.
My DB has two admin users. Only user who has a admin right can hove right to either delete or insert a record on contract table.
when they delete or insert a record on contract table, it iwll generate the modification information which is user name , contractNum, date and time.

My first question is do i need to have the modification table to store that info for that trigger or can I just generate a view?
Second question is code for that trigger will be?

My contract DDL is
create table contract(
contractNum int identity(1,1) primary key,
contractDate smalldatetime not null,
tuition money not null,
studentId char(4) not null foreign key references student (studentId),
contactId int not null foreign key references contact (contactId)
);


thanks for your help in advance.
gazawaymy

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Insert/Delete Trigger Misfires
I am having problems with a trigger that is designed to audit changes to a particular field in a table. If that field is updated, then the old record is inserted into an audit table.

This trigger never fails when I run test data against it from Query Analyzer. It works some of the time when the web application updates it, fails other times.

Typically, multiple records are updated at the same time. Any ideas?

Here is the Trigger:

create trigger t_u_product_rate_detail
on product_rate_detail
for insert, update, delete

as

/--Local variable
declare
@auditdate datetime,
@audituser sysname

--Set values so function isn't executed a bunch of times
select
@auditdate = getdate(),
@audituser = suser_sname()

if exists (select * from inserted)
begin
if exists (select * from deleted)
begin
insert into product_rate_detail_audit_log
select d.product_rate_detail_id,
d.product_rate_id,
d.day_of_week_id,
d.ad_size_id,
d.rate,
d.plan_vol,
d.plan_freq,
@auditdate, @audituser, 'U'
from deleted d
join inserted i on i.product_rate_detail_id = d.product_Rate_detail_id
where (d.rate <> 0 and d.rate is not null)
and i.rate <> d.rate -- this determines if the rate has changed.
end
end


GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

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Delete Data Before Trigger Executes
I am trying to delete data from a table prior to populating with new data via a trigger if certain critria matches to eliminate duplicates. I have copied the trigger below. The syntax checks ok but I get any error message saying 'Incorrect syntax near 'GO'. 'ALTER TRIGGER' must be the first statement in a query batch' when I try to save.

Can someone tell me if this is possible please.

IF EXISTS (SELECT * FROM hold_complete
WHERE fkey = hold_complete.fkey AND actiontext = 'hold' and Subactiontext = 'pending user')
delete from hold_complete where hold_complete.fkey = fkey
GO
CREATE TRIGGER tr_hold_complete ON CallsHistory
for INSERT AS
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
insert hold_complete
select ins.AddedDT, ins.fkey, ins.actiontext,
ins.subactiontext, con.emailaddress, ca.loggeddt,
(con.forename + ' ' + con.surname) as contactname,
ca.summary, ca.notes,co.coordinator, co.coordinator,getdate(), ca.status,ca.lastsubaction,getdate(),ca.dateopened ,ca.companyname,getdate(),(null),ch.notes
FROM inserted as ins with (nolock)
join calls as ca with (nolock)on
ins.fkey = ca.callid
join contact as con with (nolock) on
ca.contactid = con.contactid
join company as co with (nolock) on
ca.companyid = co.companyid
join callshistory as ch with (nolock) on
ins.historyid = ch.historyid
where ins.actiontext = 'hold' and ins.Subactiontext in ('completed','pending user')

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TRIGGER FOR INSERT,UPDATE,DELETE
I HAVE TWO TABLES IN THE DATABSE AND THE SECOND TALE SI FOR AUDITING.
I WANT CREATE THE TRIGGER ON FIRST TABLE SO THAT I CAN PUT THE STATUS
LIKE INSERT,UPDATE OR DELETE IN THE STATUS COLUMN IN SECOND TABLE.
CAN SOMEBODY HELP IN WRITING THAT TRIGGER..?
HOW CAN I DETERMINE WAETHER THE RECORD IS BEEN INSERTED OR UPDATED OR DELETED.

DO I HAVE TO WRITE A SEPERATE TRIGGER FOR EACH ACTIVITY..OR I CAN WRITE IT IN THE
SINGLE TRIGGER..?

PLEASE SUGGEST ME..ITS URGENT.

THANKS IN ADVANCE
HARISH

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Trigger For Delete Or Specific Update
I have a table where I want to prevent user from deleting or setting a flag on a field to "y" with a database trigger (sql 2000). I understand the trigger for just one (stopping the delete, or stopping the field being changed to "y"). Should I have 2 seperate triggers or would there be a way to handle both.

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A Question About MS SQL Server Trigger For Delete
hello:
This is a question about The MS SQL Server 7.0 table trigger for delete.
In a "delete" SQL statement , no matter how many rows are effected,
the table trigger for delete just only fire one time. I don't think
this is properly. Is this the MS SQL Sever behavior?

I've studied the MS SQL server books online, but I can't find any information like "for each row" in Oracle.
Could you please help me? Thanks a lot.

Stacy Chou

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DELETE Audit Trigger With BLOBs
Greetings

I'm clear about the use of a DELETE trigger to "move" your deleted record to a second database as a sort of recycle bin.

But SS7 has the limitation, and it's mentioned in BOL, that it cannot reference your TEXT, NTEXT or IMAGE fields in the DELETED table. It says to join the original table with DELETED to get at those fields.

The only problem is the original table's record has been deleted! Even though the transaction has not yet been COMMITTED.

Here's my Trigger:

CREATE TRIGGER AuditTest ON Activity FOR DELETE AS

INSERT AuditDB.dbo.Activity
SELECT Activity.* FROM Activity INNER JOIN Deleted
ON Activity.ActivityID = Deleted.ActivityID

And for discussion, here's my Table:

ActivityID uniqueidentifier
OrgId uniqueidentifier
Title varchar(600
Active bit
Comments text
LastUpdate datetime

Any suggestions? Has anyone been able to implement a DELETE Audit
Trigger on a table with BLOBs?

Thanks,

-Rich

Richard Hundhausen
Stuttgart, Germany

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Error W/ Trigger When Firing On 'DELETE XYZ WHERE IN (1,2,3)'
Hi,

Thanks for looking at this post. I currently have a trigger that fires when a row is inserted or deleted on a table. The idea behind the trigger is that when a row is inserted (representing a sub-category for images), the categories parent needs to have some work done on it. I currently have the trigger working just fine with single inserts and single deletes:


sql Code:






Original
- sql Code





CREATE TRIGGER smvcModImageManagerCategory_insert_delete_pdfManger_sync
ON smvcModImageManagerCategory
FOR INSERT, DELETE
AS
DECLARE @pdfId INTEGER;
DECLARE @parentPdfId INTEGER;
DECLARE @grandparentPdfId INTEGER;
DECLARE @parentId INTEGER;
DECLARE @grandparentId INTEGER;
DECLARE @tableName VARCHAR( 255 );


-- If I am being inserted or deleted, and I am not a top level
-- category, then my parent's pdf record needs to be set so that
-- the pdf file is updated
IF (SELECT id FROM Inserted) IS NOT NULL
BEGIN
SELECT @pdfId = (SELECT pdfManagerId FROM Inserted),
@parentId = (SELECT parentCategory FROM Inserted),
@grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory
WHERE id = @parentId);
END
ELSE
BEGIN
SELECT @pdfId = (SELECT pdfManagerId FROM Deleted),
@parentId = (SELECT parentCategory FROM Deleted),
@grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory
WHERE id = @parentId)
END



-- If I am not a top level category, set my parent's pdf to be
-- updated
IF @parentId <> -1
BEGIN
SELECT @parentPdfId = (SELECT pdfManagerId
FROM smvcModImageManagerCategory
WHERE id = @parentId);
UPDATE smvcModPdfManager SET data_last_updated = GETDATE()
WHERE id = @parentPdfId;
END
GO






 CREATE TRIGGER smvcModImageManagerCategory_insert_delete_pdfManger_syncON smvcModImageManagerCategoryFOR INSERT, DELETEAS     DECLARE @pdfId INTEGER;    DECLARE @parentPdfId INTEGER;    DECLARE @grandparentPdfId INTEGER;    DECLARE @parentId INTEGER;    DECLARE @grandparentId INTEGER;    DECLARE @tableName VARCHAR( 255 );         -- If I am being inserted or deleted, and I am not a top level    -- category, then my parent's pdf record needs to be set so that     -- the pdf file is updated    IF (SELECT id FROM Inserted) IS NOT NULL    BEGIN        SELECT @pdfId = (SELECT pdfManagerId FROM Inserted),            @parentId = (SELECT parentCategory FROM Inserted),            @grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory                                WHERE id = @parentId);    END    ELSE    BEGIN        SELECT @pdfId = (SELECT pdfManagerId FROM Deleted),            @parentId = (SELECT parentCategory FROM Deleted),            @grandparentId = (SELECT parentCategory FROM smvcModImageManagerCategory                                WHERE id = @parentId)    END             -- If I am not a top level category, set my parent's pdf to be    -- updated    IF @parentId <> -1    BEGIN        SELECT @parentPdfId = (SELECT pdfManagerId                                 FROM smvcModImageManagerCategory                                WHERE id = @parentId);        UPDATE smvcModPdfManager SET data_last_updated = GETDATE()            WHERE id = @parentPdfId;    ENDGO



However, when I execute a statement like:


sql Code:






Original
- sql Code





DELETE FROM smvcModImageManagerCategory WHERE (smvcModImageManagerCategory.id IN ('86','87','88','90','91'))






 DELETE FROM smvcModImageManagerCategory WHERE (smvcModImageManagerCategory.id IN ('86','87','88','90','91'))



I get an error because the virtual 'Deleted' table has more than one record in it. So, what I really need is advice on how to turn the above trigger into something that will be able to handle multiple deletes.

Thank you.

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Cascade Delete Trigger On Same Table
 I have 4 colums in a table
Project, Sections,Tasks,Subtasks
Each subtask will haven a row.

I need to write a trigger when I delete a task it needs to delete all the subtasks relating to it. When I delete a section it needs to delete all the tasks and subasks relating to it. similarly for project.
This trigger for task-subtask works.
CREATE TRIGGER "[Deletetasktrigger]" ON [Tbl] FOR DELETE AS
SET NOCOUNT ON
/* * CASCADE DELETES TO '[Tbl B]' */
DELETE [tbl] FROM deleted, [Tbl] WHERE deleted.[task] = [Tbl].[task]
THis works fine. But when I do it for sections I get this error.

"Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32)" ..

Help Please!!!!!!

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(SQL Server 2005) Instead Of Delete Trigger
Hi,

I simply need a trigger to delete some datasets from a view but have some trouble writing an adequate trigger. Here is my attempt:

Use myDB;
Go
CREATE TRIGGER IO_Trig_Del_myView ON myView
INSTEAD OF Delete
AS
BEGIN
SET NOCOUNT ON
-- Check for dataset, if present delete.
IF (EXISTS (SELECT Z.[myPk]
FROM myTable t, deleted
WHERE t.[myPk] = deleted.[myPk]))
Delete From myTable
Where myTable.[myPk] = deleted.[myPk]...

This causes the following failure:

Msg 4104, Level 16, State 1, Procedure IO_Trig_Del_myView, Line 11
The multi-part identifier "deleted.myPK" could not be bound.

Can somebody explain the reason to me? myPk is part of the View I created. Since I do have three tables in myView so I get that message three times, once per table. 

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Trigger To Capure Delete Information ???
Hi There

We have some mystery deletes happening on a table.

The server is very busy, so a profiler trace on this table would result in thousands of events to sift through.

So i would like to put a trigger on this table that on delete could capture information such as the sql statement or user that caused he delete.

Anyone got any ideas on the best way to do this? Or any way to do this ?

Thanx

 

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Question About Trigger Insert Before Delete
Hello, everybody
 
 I have a question about trigger.
I have a table called "Users", it has a ID (auto increment), UserName, FirstName...ect.
The question is if one row is deleted, I want to put this row into "Users_Histroy" Table whose structure is the same as "Users" Table and then delete this row in "Users" Table..
How can I achieve this? I am pretty new about triggers.
Thank you very much.

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Trigger On Insert To Delete Record
Can anybody help me in writing a SQl trigger to delete a record when inserted after 70 seconds.?

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Using Trigger/Stored Procedure (Delete, Insert)?
I have 3 tables...TableA, TableB, TableC TableA - Personal InformationPersonalInfoId (Primary) , First Name,Last NameTableB - Personal Information To Department IDReferenceID, FKPersonalInfoId, FKDepartmentIdTableC - DepartmentDepartmentId, DepartmentNameI am coding Asp.Net VB using VWD express with Sql Server Express.  I know how to create a stored procedure to delete, insert and even update a record in TableA, TableB, TableC respectively.If I need to delete a record in TableC, which has a related record in TableB, I have read that I need to use a Trigger.  I never have used a Trigger and it is new to me.  Can someone point me a way on how to use one in this case of my deleting scenario.  Pretty much, if a user clicks on a delete button, and deletes a record in my TableC, I dont want a  FKDpartmentId in my TableB that doesnt exist anymore because it was deleted in TableC or prevent a user from deleting that record till the relationship in TableB is no longer valid. In the same vain, If I have a input form which ask the user to enter their First Name and Last Name and Department, i would like to add those records in TableA for First and Last Name, TableB for the Department.  Once again, how do I create a Trigger that if I insert a record in Table A to also insert the information for Department in Table B, if its successful in my stored procedure.  Hope that made sense.Thanks.   

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Create Trigger Which Wil Do Event Before Delete A Record..
Hi There, I have created a trigger which supposingly will do event before delete the record from its own table.unfortunately when i try delete the record to test it whether it will do the event (inserting some records to another table), i found that it was not doing the event like i wanted to be. :(the trigger is as below :=======================CREATE TRIGGER TG_D_AGENT ON dbo.AgentFOR DELETEASbegindeclare @vAgentID as numeric,@vAgency as varchar(50),@vUnit as varchar(50),@vAgentCode as varchar(50),@vName as varchar(50),@vIC as varchar(14),@vAddress as varchar(100),@vContactNumber as varchar(50),@vDownlink as varchar(50),@vGSM as varchar(10),@vAM as varchar(10),@vDeleted_date as datetime set @vDeleted_date = convert(datetime, convert(varchar(10) , getdate(),103),103)declare cur_policy_rec CURSOR forselect AgentID,Agency,Unit,AgentCode,[Name],IC,Address,ContactNumber,Downlink,GSM,AM from insertedopen cur_policy_recfetch from cur_policy_rec into @vAgentID,@vAgency,@vUnit,@vAgentCode,@vName,@vIC, @vAddress,@vContactNumber,@vDownlink,@vGSM,@vAM WHILE @@FETCH_STATUS=0BEGIN INSERT INTO [Agent_history] (AgentID,Agency,Unit,AgentCode,Name,IC,Address,Con tactNumber,Downlink,GSM,AM,Deleted_date) VALUES(@vAgentID,@vAgency,@vUnit,@vAgentCode,@vNam e,@vIC,@vAddress,@vContactNumber,@vDownlink,@vGSM, @vAM,@vDeleted_date)fetch from cur_policy_rec into @vAgentID,@vAgency,@vUnit,@vAgentCode,@vName,@vIC, @vAddress,@vContactNumber,@vDownlink,@vGSM,@vAM enddeallocate cur_policy_recend===============================in oracle , i normallly can do something like this...====================================CREATE TRIGGER TG_D_AGENT ON dbo.AgentBEFORE DELETE ON dbo.Agent FOR EACH ROWbeginIs that such thing function like 'BEFORE' in MS SQL SERVER 2000, coz in sql server im not sure they do have or not. Plz someone help me on this...realy appreciated if can!

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