Creating A Trigger To Check Before Deleting A Record

Jun 12, 2008

I am using the tables created by the aspnet_regsql.exe tool for security.  Basically, I need to ensure that an account named Administrator is never deleted.  I also have a role named administrator, and I need to make sure that Administrator is never removed from the administrator role.

Can I create a trigger to ensure that the Administrator is never deleted and that the Administrator is never removed from the Administrator role?  I know it will probably be two separate triggers: one on the aspnet_users table and one on the aspnet_usersinroles table.

Thanks a lot for the help!

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Creating A Trigger That Emails When New Record Is Added.

May 21, 2007

I'm hoping one of you will be able to help me because I haven't had very good luck finding any information on this.



I'm kind of new to SQL, but I'm learning as much as I can.



I created a web form that sends a new record to a SQL 2005 table I setup.



This all works exactly as it should, but I would like to have an email sent out every time a record is added to this table.



I have SQL Mail setup and I ran a test and it worked, but I can't seem to find any info on how to create a trigger that will send an email to me when a new record is added to the table.



My Database is called Engineering

The table is called ESSPartNumLog



And I have the following Columns that I would like to send in my email..



ESSSequence (PK,int, not null)

MaterialType (nvarchar(255, null)

ESSPrefix (nvarchar(255, null)

PartDescription (nvarchar(255, null)

Project (nvarchar(255, null)

PM (nvarchar(255, null)



Any ideas, or can you point me in the right direction?

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Deleting A Record

Oct 9, 2007

I have three tables
1. membership table(aspnet_membership table)
2. User Contacts table
3. Address table
These three table have relation ship with one another through a UserId field. 
How will you set up cascaded delete on these tables, Like if I delete a user in the membership table I want the related records in the other tables to be deleted as well. Cascaded delete is it something done through code, or is it definde when the tables are created.
Please advice. 
 

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Deleting All But Top Record.

Jun 23, 2005

Hey Guys,I have Performance Monitor running and storing the network usage to my MsSQL database, and this is done a few times a minute. I have a page that then shows show much of my bandwidth is being used. As you can gather, the database quickly starts filling up with hundrreds of records so I could do with a script that delete these records. I cant simply delete all records because that would cause my webpage to fail so I need a way to delete all records apart from the latest one. Wondering if anyone would know how I could do this?

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Deleting Duplicate Record

Nov 19, 2004

hi to all,

How to delete duplicate record in the recordset?

Thanks...

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Help With Add, Update Or Deleting A Record

Feb 27, 2006

Hi SQL gurus,

I have a form that depending on the outcome, will either add, update or delete a record.

1) If there IS NO record of "this" and "that" and Request("x") <> "" it will add a new record.

2) If there IS a record for "this" and "that" and Request("x") <> "" it will update column 1,2,3 or 4.

3) If there is a record for "this" and "that" and Request("x") = "" it will delete the record.

My problem is if there is a value in request("1") it works fine, but if there is no value in ("1") and there is a value in 2, 3, or 4 it will delete the record.


If request("1") <> "" OR request("2") <> "" OR request("3") <> "" OR request("4") <> "" Then

sSQL = "SELECT * FROM some_column WHERE this = '" & request("this) & "' and that = '" & request("that) & "'"
oRS.Open sSQL,oConn,adOpenKeySet,adLockOptimistic
If oRS.EOF Then
oRS.Addnew
oRS.Fields("this") = request("this")
ors.Fields("that") = request("that")
Else
ors.Movefirst
End If
oRS.fields("1") = request("1")
oRS.fields("2") = request("2")
oRS.fields("3") = request("3")
oRS.fields("4") = request("4")
oRS.Update
oRS.Close

Else

sSQL = "Delete from some_table Where this = '" & '" & request("this) & "' & "' AND that = '" & '" & request("that) & "' & "'"
objCmd.ActiveConnection = oConn
objCmd.CommandType = adCmdText
objCmd.CommandText = sSQL
objCmd.Execute

End if

Hope I explained that okay.

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Deleting A Record From A VIEW

Jul 20, 2005

Hi All,I am using Microsoft SQL Enterprise Manager version 8.0 and havecreated a view from a combination of 4 different tables. I would liketo be able to go into sql and open the view and select a row anddelete that row however this seem impossible right now. I am not sureif it's possible to delete a row from a view?? Or could it be thatthese tables are all interconnected and in order to delete a recordthat is joined to one or more of the tables it has to be deleted atthe top level of the join heirarchy etc etc. (do you understand what imean?) Can this be done??Thanks in advance,Erin

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Check Values Record By Record

Nov 14, 2007

Consider this scenario.
I have two database in the sql server and consider that i have a query which has 4 tables inner joined.
When i execute the query in the database1 , the query is returning rows, But when  i execute the same query in the database2, the query is not retuning rows . I know that the
no rows are returned because of missing data in the database2. But have no idea how to trace what values are missing in the database2. Please note the tables is having a huge
list of records by which manually comparison is painfull. Please consider i dont have any background idea of the values in the tables but just using it. Any help would be
appericated.
 

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Problem In Deleting A Record From Tale

Nov 25, 2006

hai dears i want to delete a row from the table on the basis of key sent in beusers obj
 
"connection myConn = new connection();" this is ma own class that establishes the connetion which works fine in other caseseg insert
'' it shows no error or exception ' but do not delete record
so plz tell me how to do this...
 or whats wrong in this
public void delete(BEusers obj)
{
connection myConn = new connection();
 oCommand = new SqlCommand("sp_delete_tbl_users_by_userid",myConn.sqlCon);
oCommand.CommandType = CommandType.StoredProcedure;
 
 try {
 myConn.OpenConnection();
 sp = oCommand.Parameters.Add("@User_Id", SqlDbType.VarChar);
 sp.Size = 20;
sp.Value = obj.user_id;
oCommand.ExecuteNonQuery();
 }
catch (Exception oException)
{ throw oException; }
finally { myConn.CloseConnection(); }
 }
 

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Deleting A Record Older Then 10 Minutes

Aug 26, 2005

Hey Guys,I have been trying to work out how I would delete a record that was created more then 10 minutes ago.I can use this to delete records older then a day.DELETE FROM DownloadQueue WHERE Downloading = '0' AND QueuePos = '0' AND DateTime < GETDATE() - 1Just need something now that will do it for just 10 minutes.Cheers.

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Deleting The Duplicate Record From Table

Mar 26, 2008

Hi ,
i am using sql server 2005.
i have one table where i need to find records that have same citycode and hospitalcode and doctorcode then delete the record keeping only one record of them
my problem is table structure have idendtity column which is unique.
that is m table structure is something like

recid citycode hospcode doctorcode otherdesp
1 0001 hp001 d0001 ...
2 0002 hp002 d0002 ...
3 0001 hp001 d0001 ...
4 0002 hp002 d0002 ...

please suggest

thank you

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SqlCeResultSet - Problem After Deleting First Record

Oct 4, 2006



Hi,

I've noticed that after the first record from a ResultSet is deleted, HasRows property throws an exception like "The current row was deleted." Method ReadFirst() throws similar exception as well.

More details:

1. Create a ResultSet: ExecuteResultSet(ResultSetOptions.Updatable | ResultSetOptions.Scrollable | ResultSetOptions.Sensitive)

2. Let's say, there is no records in the resultset. Insert two new ones. Then call: ReadAbsolute(0); Delete(); HasRows; and the exception is thrown.

3. Then you can call ReadFirst() or Read with the same result.

4. Now call ReadAbsolute(0). It returns true. Call HasRows, ReadFirst() or Read() and you will get the exception each time.

I tried to explain this with the fact that Delete() doesn't change the current position of the ResultSet. But I don't see why that would mess the HasRows property or why after ReadAbsolute(0) retuns true, HasRows or ReadFirst() doesn't work.

Could anybody tell me what the problem is?

Thank you.

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SqlCeResultSet - Problem After Deleting First Record

Oct 3, 2006

Hi,

I've noticed that after the first record from a ResultSet is deleted, HasRows property throws an exception like "The current row was deleted."   Method ReadFirst() throws similar exception as well.

More details:

1. Create a ResultSet: ExecuteResultSet(ResultSetOptions.Updatable | ResultSetOptions.Scrollable | ResultSetOptions.Sensitive)

2. Let's say, there is no records in the resultset.  Insert two new ones.  Then call: ReadAbsolute(0); Delete(); HasRows; and the exception is thrown.

3. Then you can call ReadFirst() or Read with the same result.

4. Now call ReadAbsolute(0).  It returns true.  Call HasRows, ReadFirst() or Read() and you will get the exception each time.

I tried to explain this with the fact that Delete() doesn't change the current position of the ResultSet.  But I don't see why that would mess the HasRows property or why after ReadAbsolute(0) retuns true, HasRows or ReadFirst() doesn't work.

Could anybody tell me what the problem is?

Thank you.

 

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Trigger For Deleting Row From Same Table.

May 31, 2002

Hello everybody,
I have problem deleting row from same table using below trigger

CREATE TRIGGER [tDeleteDomain] ON dbo.iMS_Domains
FOR DELETE
AS
IF @@RowCount > 1
BEGIN
ROLLBACK TRAN
RAISERROR ('You can only delete one domain at a time.', 16, 10)
END
DECLARE@DomainID int
SELECT@DomainID = ID
FROMDELETED
DELETE FROMiMS_Domains
WHEREAliasFor = @DomainID

If I am using this trigger I am getting the below error
Server: Msg 217, Level 16, State 1, Procedure tDeleteid, Line 16
Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32)

Can anybody give good suggestiong regarding this.

Thanks,
ravi

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Stored Procedure For Deleting A Record With Contstraints (m:n)

Oct 9, 2007

I can not get this stored procedure to delete my records...

I have a
contact table
RecordID
FirstName
LastName
etc

and a Address table

RecordID
Street
Zip
Town
Country

And a Relation table

RecordID
ContactID
AddressID
CreateDate


set ANSI_NULLS ON

set QUOTED_IDENTIFIER ON

GO

ALTER PROCEDURE [dbo].[bc_Contact_Delete]

@ContactID int

AS

--SET NOCOUNT ON

BEGIN TRY

BEGIN TRANSACTION -- Start the transaction



-- Delete all Adresses

DELETE FROM [Address]

WHERE

RecordId in (SELECT ca.AdressId from [ContactAddress] ca

where

ca.ContactID = @ContactID)

-- Delete all Relations

DELETE FROM [ContactAdress]



WHERE ContactID = @ContactID

--- Delete Kontakt

DELETE FROM [Contact] WHERE (([RecordId] = @ContactID))

COMMIT TRANSACTION

END TRY

BEGIN CATCH

-- Whoops, there was an error

ROLLBACK TRANSACTION

-- Raise an error with the

-- details of the exception

DECLARE @ErrMsg nvarchar(4000),

@ErrSeverity int

SELECT @ErrMsg = ERROR_MESSAGE(),

@ErrSeverity = ERROR_SEVERITY()



RAISERROR(@ErrMsg, @ErrSeverity, 1)

END CATCH

RETURN


My Errormessage is

The DELETE statement conflicted with the REFERENCE constraint "FK_bc_ContactAdress_bc_Address". The conflict occurred in database "bContacts", table "dbo.ContactAddress", column 'AdressID'.

Can someone please post me an advice?

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Mar 11, 1999

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I use the standard ODBC setup, do I need to do anything else beside using the standard Access link.

Thanks in advance

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Aug 30, 2013

The following is the trigger which create a row in the audit table when a single deletion is occurred.

ALTER TRIGGER [dbo].[TRG_Delete_tbl_attendance]
ON [dbo].[tbl_attendance]
AFTER DELETE
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.

[code]....

I am trying to create a trigger which should prevent the bulk deletion. The following is the trigger which I have written, it is preventing the bulk deletion. But the problem is, it is removing the single deletion entries in the audit table. I want audit table to hold back the single deletion entries without allowing the bult deletion

ALTER TRIGGER [dbo].[TRG_Delete_Bulk_tbl_attendance]
ON [dbo].[tbl_attendance]
AFTER DELETE
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;

[code]....

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Possible To Avoid The FILLING Of GAP (created By Deleting A Record) In The Identity Column ?

Jun 18, 2007

Hi all,
(I am using SQL Server 2005)
I have created a new 'CUSTOMERS' table and created a colum 'CustomerID' as an Identity column.
Now, a problem I find is that when I delete a particular record, its Identity value is used automatically for the New record I insert later!
I do not want to re-use the already used Identity value.
I just want to have the last CustomerID to be higher that all the previous ones.
Is there any way to do this?
Thanking you in advance,
Tomy

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Jan 28, 2008



Hi,

If I want to automatically insert a record which has default value in a table,
how can I create the trigger?

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May 12, 2014

,I am creating a database where each record is required to have a twin record in the database.These is a type a value and a type b value and both must be present for the record to be valid.

Customer_ID, Order_Type, Product_Code
54, a, 00345
54, b, 00356

Is this something that would have to be done programmatically, or is it possible to create a constraint of some sort to ensure this?

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Feb 1, 2007

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Dec 24, 2007

Hi,
 I was wondering if someone can help.
 In vb.net what is the best way to check if a record exists if you are using an sql data reader?
For my application I need to display a button control (make it visible on the page) if a record is available after executing my sql select statement.
cheers
Mark :)

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Apr 16, 2007

Hi,

Any one can help me with the following requirement:-

. Checking the record if its lock before issues any statement

Any sample will be helpful


Best Regards

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Nov 25, 2006

Aperently I could not insert a text field to another table from INSERTED in a trigger.It seems th follwoing is working, do you see any problem joining INSERTED to the mySrcTable which is the table that has this trigger
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Nov 25, 2006

Apparently I could not insert a text field to another table from INSERTED in a trigger.
It seems the following is working, do you see any problem joining INSERTED to the mySrcTable which is the table that has this trigger

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SELECT i.myTrID, i.myFirstName, p.myBigText
FROM INSERTED i INNER JOIN mySrcTable p ON i.myTrID = p.myTrID
WHERE (i.myTrType = 'In')

Thanks,

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Sep 4, 2006

Hi,

How can I check if there is trigger for one table, and if yes disable?

if ( there is trigger in cm_template = yes )

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else

do stuff...

Since I try disable one trigger in a table which there is not trigger I think I'll receive one error. am I right?

cheers,

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Thanx and cheerz Wim

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May 17, 2005

Hi,
Can someone please tell me the best practices for checking the primary key field before inserting a record into my database?
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I guess I could use try, catch within the .APSX page or would a stored procedure be better?
Thanks
Brett

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May 22, 2008

Hi all,

I wanted to check the previous and next record values.

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sKey NextKey PreviousKey

1 2 Null
2 8 1
8 5 2
5 null 8

I wanted to check the value of NextKey of Prev record and Skey of Next record.

Any idea?

Regards
Helen

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May 22, 2008

Hi all,

I wanted to check the previous and next record values.

For example:

sKey NextKey PreviousKey

1 2 Null
2 8 1
8 5 2
5 null 8


Ex : In the first record of the table, the NextKey is pointing to 2.
So the next record of Skey will be 2. The Next Key for this record is 8. Like wise the next record of this should have the Skey as 8.

Now I need to check whether the NextKey and SKey are correct for all rows.

For that I need to check the previous record of "Next key" and next record of "Skey".

Any idea?

Regards
Helen

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Aug 7, 2014

I want to incorporate a Check constraint within a trigger, based on this but im struggling with the coding.Assuming that is an Alphanumeric field you should be checking what value is in the alphanumeric column from inserted, comparing it with whatever is in the AMGR_User_Fields_Tbl to see if there’s a duplicate and then raising the error...This is my Trigger:

ALTER TRIGGER [dbo].[DUPLICATES]
ON [dbo].[AMGR_User_Fields_Tbl]

FOR INSERT, UPDATE
AS
DECLARE @Alphanumericcol VARCHAR (750)

-- This trigger has been created to check that duplicate rows are not inserted into table.

-- Check if row exists
SELECT @Alphanumericcol
FROM Inserted i, AMGR_User_Fields_Tbl t

[code]....

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