Disabilitazione Trigger [DISABLE TRIGGER]

Jul 20, 2005

Salve, non riesco a disabilitare un trigger su sqlserver nè da query
analyzer, nè da enterprise manager.
In pratica tal cosa riuscivo a farla in Oracle con TOAD, mentre qui non
riesco.
Mi interessa disattivarlo senza cancellarlo per poi riattivarlo al bisogno
senza rilanciare lo script di creazione.
Grazie a tutti

Hi I need to disable a DB trigger and I'm not able to do this neither with
query analyzer, neither with enterprise manager.
I remeber this job was quite simple using TOAd in Oracle.
I'm interested in making it disabled not delete it, without run creation
script.

Thanks a lot to everybody.

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Thanks.

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Sorry to reopen a post, but I'm having the same problem. Worse, I can't change the trigger code right now.

My concerns with disabling triggers are:

1) DISABLE TRIGGER affects all sessions, not just the session doing the mass load
2) DISABLE TRIGGER is permanant until re-enabled, so if the mass load process fails (and if our TRY/CATCH blocks aren't perfect), then the triggers would remain disabled for normal OLTP use.
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Feb 21, 2005

Hello, everyone:

There is a trigger to monitor the modification on a table, and it turn on. For a special duration, I need to turn off this trigger to modify the table. And then turn on the trigger again.

Any help will be appreciated.

Thanks

ZYT

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Disable Trigger ONLY For My Insert?

Oct 1, 2007



Howdy all. Got a q someone might know something about.

Assume TableA and TableB, identical structure. TableA has an insert trigger.

I want to insert the contents of B into A, but i do NOT want the trigger to fire for my particular insert. During the insert (might be millions of records coping from B to A) i would like the trigger to continue to fire for anyone else that inserts data.

My research suggests that I need to BCP out from B to a file, then BULK INSERT from the file back to A. Anyone have any other ideas?

This was my first thoght, but of course, this will disable the trigger for ALL insert operations, not just mine:



Code Block
DISABLE MyInsertTrigger on TableA;
GO
insert into TableA
select * from TableB
GO
ENABLE MyInsertTrigger on TableA;
GO

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Disable Trigger Syntax?

Sep 4, 2007





Code Snippet
CREATE PROCEDURE Staff_NoteGroup_insert
(

@staffID AS int,
@owner AS int,
@subject AS varchar(256),
@message AS varchar(512),
@date_add AS DateTime
)
AS
BEGIN TRANSACTION SERIALIZABLE

DECLARE @id as int
SELECT @id = (SELECT MAX(id) FROM Staff_NoteGroup) + 1

IF @id IS NULL

SET @id = 1

INSERT INTO Staff_NoteGroup VALUES(@id, @staffID, @owner, @subject, GETDATE(), GETDATE())

IF @@error <> 0 BEGIN

ROLLBACK
RETURN
END

DISABLE TRIGGER Staff_Note_insert ON DATABASE
INSERT INTO Staff_Note VALUES(1, @id, @owner, @message, @date_add)
ENABLE TRIGGER Staff_Note_insert ON DATABASE

IF @@error <> 0 BEGIN

ROLLBACK
RETURN
END
COMMIT
GO






Below is the error message.


Msg 156, Level 15, State 1, Procedure Staff_NoteGroup_insert, Line 26

Incorrect syntax near the keyword 'TRIGGER'.

Msg 102, Level 15, State 1, Procedure Staff_NoteGroup_insert, Line 28

Incorrect syntax near 'ENABLE'.

Msg 102, Level 15, State 1, Procedure Staff_NoteGroup_insert, Line 33

Incorrect syntax near 'COMMIT'.


Where is the problem?
I'm using sql server 2005

Thanks,
Max

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SQL Server 2005 SP2 add LOGON TRIGGER feature,

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for example:

create trigger tr_logon1_bug

to all server

for logon

as

insert into t1 values(original_name(), getdate());



and, drop table 't1'.



the result, everyone fail to logon, even if sa. (may be..)

therefore, cannot disable/drop this trigger ...



So, Are there anyway to disable logon trigger,

or to connect by sa/Admin,

when logon trigger failed.



Regards,

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Hi

So, I know, after searching these forums, that it is possible to disable a trigger before updating a table and then enabling it again afterwords, for instance, from a stored procedure.

I might be dealing with hypotheticals here, but when I do a ...

ALTER TABLE table
{ ENABLE | DISABLE } TRIGGER
{ ALL | trigger_name [ ,...n ] }

... from a stored procedure, will it not be database wide?
Should I worry about another change to the table happening in the timespan in which the trigger is disabled (which it would be for during a single update), which the trigger should have caught?

Regards, Egil.

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We have setup a replication in SQL2000:

We have DTS package automatically pouring data into the publishing database(source tables). During this process, we want to temporary disable certain triggers. However, the command

Alter table 'tbl' disable trigger 'abc' errored out. The error message said:

''Cannot alter the table 'tbl' because it is being published for replication."

I've digged more into this and found although it's not allowed to disable a triggers,

the SQLServer do allow delete the trigger and recreate them.

Is there any way to disable the trigger directly?

Thanks in advance,

Don



BTW:

I've used the following sql directly, however the trigger still fires.

UPDATE
sysobjects
SET
status = status|2048
WHERE
type = 'TR'
AND
parent_obj = OBJECT_ID (@table_name)



The only other way around now is to create stored procedures that dynamically create the trigger. Because our trigger is normmally larger than 8000 bytes. We have to create one stored procedure per trigger. This option is not acceptable because not only it takes quite a time, but also a maintainance nightmare.



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I have 2 dbs (SQL 2012) - one contains a trigger that is enabled/disabled by a procedure in the other database. This all works fine.

If I create a Database Project solution in Visual Studio 2012 SSDT (or 2013) for both databases, the stored procedure generates a SQL71502 stating that my trigger name can't be resolved.

To recreate the issue:

CREATE DATABASE DbWithTrigger
GO
USE DbWithTrigger
GO
CREATE TABLE dbo.TblWithTrigger(
Id int NULL,
SomeValue varchar(30) NULL

[code]....

-- Test to confirm

EXEC CrossDbTriggerCall
INSERT DbWithTrigger.dbo.TblWithTrigger VALUES(1, 'Blah blah')

In Visual Studio 2012:

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2. In project settings set the Target platform to SQL 2012
2. Import the DbWithTrigger db into this project
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4. In project settings set the Target platform to SQL 2012
5. Import the DbCallsTrigger db into this project
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Nov 14, 2006

Hey,

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If you need the design or create script (table layout), please let me know.

Thanks.

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Dec 5, 2006

This Audit Trigger is Generic (i.e. non-"Table Specific") attach it to any tabel and it should work. Be sure and create the 'Audit' table first though.

The following code write audit entries to a Table called
'Audit'
with columns
'ActionType' //varchar
'TableName' //varchar
'PK' //varchar
'FieldName' //varchar
'OldValue' //varchar
'NewValue' //varchar
'ChangeDateTime' //datetime
'ChangeBy' //varchar

using System;
using System.Data;
using System.Data.SqlClient;
using Microsoft.SqlServer.Server;

public partial class Triggers
{
//A Generic Trigger for Insert, Update and Delete Actions on any Table
[Microsoft.SqlServer.Server.SqlTrigger(Name = "AuditTrigger", Event = "FOR INSERT, UPDATE, DELETE")]

public static void AuditTrigger()
{
SqlTriggerContext tcontext = SqlContext.TriggerContext; //Trigger Context
string TName; //Where we store the Altered Table's Name
string User; //Where we will store the Database Username
DataRow iRow; //DataRow to hold the inserted values
DataRow dRow; //DataRow to how the deleted/overwritten values
DataRow aRow; //Audit DataRow to build our Audit entry with
string PKString; //Will temporarily store the Primary Key Column Names and Values here
using (SqlConnection conn = new SqlConnection("context connection=true"))//Our Connection
{
conn.Open();//Open the Connection
//Build the AuditAdapter and Mathcing Table
SqlDataAdapter AuditAdapter = new SqlDataAdapter("SELECT * FROM Audit WHERE 1=0", conn);
DataTable AuditTable = new DataTable();
AuditAdapter.FillSchema(AuditTable, SchemaType.Source);
SqlCommandBuilder AuditCommandBuilder = new SqlCommandBuilder(AuditAdapter);//Populates the Insert command for us
//Get the inserted values
SqlDataAdapter Loader = new SqlDataAdapter("SELECT * from INSERTED", conn);
DataTable inserted = new DataTable();
Loader.Fill(inserted);
//Get the deleted and/or overwritten values
Loader.SelectCommand.CommandText = "SELECT * from DELETED";
DataTable deleted = new DataTable();
Loader.Fill(deleted);
//Retrieve the Name of the Table that currently has a lock from the executing command(i.e. the one that caused this trigger to fire)
SqlCommand cmd = new SqlCommand("SELECT object_name(resource_associated_entity_id) FROM
ys.dm_tran_locks WHERE request_session_id = @@spid and resource_type = 'OBJECT'", conn);
TName = cmd.ExecuteScalar().ToString();
//Retrieve the UserName of the current Database User
SqlCommand curUserCommand = new SqlCommand("SELECT system_user", conn);
User = curUserCommand.ExecuteScalar().ToString();
//Adapted the following command from a T-SQL audit trigger by Nigel Rivett
//http://www.nigelrivett.net/AuditTrailTrigger.html
SqlDataAdapter PKTableAdapter = new SqlDataAdapter(@"SELECT c.COLUMN_NAME
from INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk ,
INFORMATION_SCHEMA.KEY_COLUMN_USAGE c
where pk.TABLE_NAME = '" + TName + @"'
and CONSTRAINT_TYPE = 'PRIMARY KEY'
and c.TABLE_NAME = pk.TABLE_NAME
and c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME", conn);
DataTable PKTable = new DataTable();
PKTableAdapter.Fill(PKTable);

switch (tcontext.TriggerAction)//Switch on the Action occuring on the Table
{
case TriggerAction.Update:
iRow = inserted.Rows[0];//Get the inserted values in row form
dRow = deleted.Rows[0];//Get the overwritten values in row form
PKString = PKStringBuilder(PKTable, iRow);//the the Primary Keys and There values as a string
foreach (DataColumn column in inserted.Columns)//Walk through all possible Table Columns
{
if (!iRow[column.Ordinal].Equals(dRow[column.Ordinal]))//If value changed
{
//Build an Audit Entry
aRow = AuditTable.NewRow();
aRow["ActionType"] = "U";//U for Update
aRow["TableName"] = TName;
aRow["PK"] = PKString;
aRow["FieldName"] = column.ColumnName;
aRow["OldValue"] = dRow[column.Ordinal].ToString();
aRow["NewValue"] = iRow[column.Ordinal].ToString();
aRow["ChangeDateTime"] = DateTime.Now.ToString();
aRow["ChangedBy"] = User;
AuditTable.Rows.InsertAt(aRow, 0);//Insert the entry
}
}
break;
case TriggerAction.Insert:
iRow = inserted.Rows[0];
PKString = PKStringBuilder(PKTable, iRow);
foreach (DataColumn column in inserted.Columns)
{
//Build an Audit Entry
aRow = AuditTable.NewRow();
aRow["ActionType"] = "I";//I for Insert
aRow["TableName"] = TName;
aRow["PK"] = PKString;
aRow["FieldName"] = column.ColumnName;
aRow["OldValue"] = null;
aRow["NewValue"] = iRow[column.Ordinal].ToString();
aRow["ChangeDateTime"] = DateTime.Now.ToString();
aRow["ChangedBy"] = User;
AuditTable.Rows.InsertAt(aRow, 0);//Insert the Entry
}
break;
case TriggerAction.Delete:
dRow = deleted.Rows[0];
PKString = PKStringBuilder(PKTable, dRow);
foreach (DataColumn column in inserted.Columns)
{
//Build and Audit Entry
aRow = AuditTable.NewRow();
aRow["ActionType"] = "D";//D for Delete
aRow["TableName"] = TName;
aRow["PK"] = PKString;
aRow["FieldName"] = column.ColumnName;
aRow["OldValue"] = dRow[column.Ordinal].ToString();
aRow["NewValue"] = null;
aRow["ChangeDateTime"] = DateTime.Now.ToString();
aRow["ChangedBy"] = User;
AuditTable.Rows.InsertAt(aRow, 0);//Insert the Entry
}
break;
default:
//Do Nothing
break;
}
AuditAdapter.Update(AuditTable);//Write all Audit Entries back to AuditTable
conn.Close(); //Close the Connection
}
}


//Helper function that takes a Table of the Primary Key Column Names and the modified rows Values
//and builds a string of the form "<PKColumn1Name=Value1>,PKColumn2Name=Value2>,......"
public static string PKStringBuilder(DataTable primaryKeysTable, DataRow valuesDataRow)
{
string temp = String.Empty;
foreach (DataRow kColumn in primaryKeysTable.Rows)//for all Primary Keys of the Table that is being changed
{
temp = String.Concat(temp, String.Concat("<", kColumn[0].ToString(), "=", valuesDataRow[kColumn[0].ToString)].ToString(), ">,"));
}
return temp;
}
}

The trick was getting the Table Name and the Primary Key Columns.
I hope this code is found useful.

Comments and Suggestion will be much appreciated.

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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

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Tyson

3/4/04


5

Tom

Finney

Jones

1/1/2000


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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:

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on a
for insert
as
insert into b(ID)

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

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Hi all in .net I've created an application that allows creation of triggers, i also want to allow the deletion of triggers.
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I have the following Trigger

the error is at

DROP TRIGGER @DeleteTrigger

I'm guessing it dosen't like the trigger name being a variable instead of a static name
how do i get around this?

thanks in advance

-- ================================================

-- Template generated from Template Explorer using:

-- Create Trigger (New Menu).SQL

--

-- Use the Specify Values for Template Parameters

-- command (Ctrl-Shift-M) to fill in the parameter

-- values below.

--

-- See additional Create Trigger templates for more

-- examples of different Trigger statements.

--

-- This block of comments will not be included in

-- the definition of the function.

-- ================================================

SET ANSI_NULLS ON

GO

SET QUOTED_IDENTIFIER ON

GO

-- =============================================

-- Author: <Author,,Name>

-- Create date: <Create Date,,>

-- Description: <Description,,>

-- =============================================

CREATE TRIGGER RemoveTriggers

ON tblTriggers

AFTER DELETE

AS

BEGIN

-- SET NOCOUNT ON added to prevent extra result sets from

-- interfering with SELECT statements.

SET NOCOUNT ON;

Declare @DeleteTrigger as nvarchar(max)

select @DeleteTrigger = TableName FROM DELETED



IF OBJECT_ID (@DeleteTrigger,'TR') IS NOT NULL

DROP TRIGGER @DeleteTrigger

GO

END

GO

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Hi,

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and i.req_fname <> d.req_fname from the where clause then it works fine the first time too. Seems like null value of the column is messing things up

Any thoughts?


Here is my t-sql


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select i.req_guid, i.req_fname, 'req_fname', IsNull(i.req_last_update_user,@default_user) as username from inserted i, deleted d

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Thanks,
leo

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