Audit Tables, Delete Triggers, And Asp.net
Jul 20, 2005
i'm in a bit of a bind at work. if anyone could help, i'd greatly
appreciate it.
i have a web app connecting to a sql server using sql server
authentication. let's say, for example, my login/password is
dbUser/dbUser. the web app however, is using windows authentication.
so if I am logged into the network as 'DOMAINEric', when I access my
web app, my web app knows that I am 'DOMAINEric'. but to the sql
server db, I am user 'dbUser'.
now, i for each table i have, i need to implement an audit table to
record all updates, inserts, deletes that occur against it. i was
going to do so with triggers. this is all fine for selects, inserts,
and updates. for each table, i have an updatedby and an updatedate.
for example, let's say i have a table:
create table blah
(
id int,
col1 varchar(10),
updatedby varchar(30),
updatedate datetime
)
and corresponding audit table:
create audit_blah
(
id int,
blah_id int,
blah_col1 varchar(10),
blah_updatedby varchar(1),
blah_updatedate datetime
)
for update and insert triggers, i can know what to insert into the
updatedby column of audit_blah because it's in a corresponding row in
blah. my web app knows what user is accessing the application, and
can insert that name into blah. blah's trigger will then insert that
name into audit_blah.
however, in the case of a delete, i'm not passing in an 'updatedby',
because i'm deleting. in this situation, how can the trigger know
what user is deleting? the db only knows that sql user 'dbUser' is
deleting, but doesn't know that 'dbUser' is deleting on behalf of
'DOMAINEric'. is there any way for my app to inform the trigger to
access my windows identity without having a corresponding row in the
table from which to pull that info?
obviously, i could have each of my app's users log into SQL server
through Windows authentication; then i could just use SYSTEM_USER.
but let's say, for performance's sake, it'd be better for me to use
one sql server login. (i believe one user works better for connection
pooling purposes.) is there a way to get around this?
(i'm hoping a built-in function exists that solves all my problems.)
suggestions? resources?
any help would be great appreciated.
happy turkeys.
Eric
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Jul 23, 2005
Dear Group,I would like to create an audit table that is created with a trigger thatreflects all the changes(insert, update and delete) that occur in table.Say I have a table withSubject_ID, visit_number, dob, weight, height, User_name, inputdateThe audit table would have .Subject_ID, visit_number, dob, weight, height, User_name, inputdate,edit_action, edit_reason.Where the edit_action would be insert, update, delete; the edit_reason wouldbe the reason given for the edit.Help with this would be great, since I am new to the world of triggers.Thanks,Jeff
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Jul 20, 2005
I need audit triggers that change columns value in the same recordthat fire trigger.I need how to do..Thanks..
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Sep 23, 2004
Im using triggers to track changes Insert/Update/Deletes on my DB tables and they work for when i am manually adding/editing and deleting a single records.
The problem arises in that I have an asset/inventory management app that dumps lots of details into my DB tables at once each time its run.
Not all of the tables are updated and data cannot be completely inserted.
This is the trigger i have been using - could someone tell me how to modify it to work.
/*
This trigger audit trails all changes made to a table.
It will place in the table Audit all inserted, deleted, changed columns in the table on which it is placed.
It will put out an error message if there is no primary key on the table
You will need to change @TableName to match the table to be audit trailed
*/
ALTER trigger tr_TableName
on dbo.TableName for insert, update, delete
as
declare @bit int ,
@field int ,
@maxfield int ,
@char int ,
@fieldname varchar(128) ,
@TableName varchar(128) ,
@PKCols varchar(1000) ,
@sql varchar(2000),
@UpdateDate varchar(21) ,
@Action nvarchar(50) ,
@HostName nvarchar(50),
@PKFieldName varchar (1000)
IF EXISTS(SELECT * FROM inserted)
IF EXISTS(SELECT * FROM deleted)
--update = inserted and deleted tables both contain data
BEGIN
SET @Action = 'UPDATE'
SELECT @DeviceID = (SELECT inserted.DeviceID FROM inserted INNER JOIN deleted ON inserted.deviceID = deleted.deviceid)
END
ELSE
--insert = inserted contains data, deleted does not
BEGIN
SET @Action = 'INSERT'
select @DeviceID = (SELECT DeviceID from inserted)
END
ELSE
--delete = deleted contains data, inserted does not
BEGIN
SET @Action = 'DELETE'
select @DeviceID = (SELECT DeviceID from deleted)
END
select @TableName = 'TableName'
-- date
select @HostName = host_name(),
@UpdateDate = convert(varchar(8), getdate(), 112) + ' ' + convert(varchar(12), getdate(), 114),
--@DeviceID,
@PKFieldName=(select top 1 c.COLUMN_NAME fromINFORMATION_SCHEMA.TABLE_CONSTRAINTS pk ,INFORMATION_SCHEMA.KEY_COLUMN_USAGE c where pk.TABLE_NAME = @TableName
andCONSTRAINT_TYPE = 'PRIMARY KEY'andc.TABLE_NAME = pk.TABLE_NAME and c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME)
-- get list of columns
select * into #ins from inserted
select * into #del from deleted
-- Get primary key columns for full outer join
select@PKCols = coalesce(@PKCols + ' and', ' on') + ' i.' + c.COLUMN_NAME + ' = d.' + c.COLUMN_NAME
fromINFORMATION_SCHEMA.TABLE_CONSTRAINTS pk ,
INFORMATION_SCHEMA.KEY_COLUMN_USAGE c
where pk.TABLE_NAME = @TableName
andCONSTRAINT_TYPE = 'PRIMARY KEY'
andc.TABLE_NAME = pk.TABLE_NAME
andc.CONSTRAINT_NAME = pk.CONSTRAINT_NAME
if @PKCols is null
begin
raiserror('no PK on table %s', 16, -1, @TableName)
return
end
select @field = 0, @maxfield = max(ORDINAL_POSITION) from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = @TableName
while @field < @maxfield
begin
select @field = min(ORDINAL_POSITION) from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = @TableName and ORDINAL_POSITION > @field
select @bit = (@field - 1 )% 8 + 1
select @bit = power(2,@bit - 1)
select @char = ((@field - 1) / 8) + 1
--if substring(COLUMNS_UPDATED(),@char, 1) & @bit > 0
begin
select @fieldname = COLUMN_NAME from INFORMATION_SCHEMA.COLUMNS where TABLE_NAME = @TableName and ORDINAL_POSITION = @field
select @sql = 'insert LITE_Inventory (TableName, FieldName, OldValue, NewValue, UpdateDate, Action, Host, PkFieldName, DeviceID)'
-- select @sql = 'insert LITE_Inventory (TableName, FieldName, OldValue, NewValue, UpdateDate, Action, Host, PkFieldName)'
select @sql = @sql + ' select ''' + @TableName + ''''
select @sql = @sql + ',''' + @fieldname + ''''
select @sql = @sql + ',convert(varchar(1000),d.' + @fieldname + ')'
select @sql = @sql + ',convert(varchar(1000),i.' + @fieldname + ')'
select @sql = @sql + ',''' + @UpdateDate + ''''
select @sql = @sql + ',''' + @Action + ''''
select @sql = @sql + ',''' + @HostName + ''''
select @sql = @sql + ',''' + @PKFieldName + ''''
select @sql = @sql + ' from #ins i full outer join #del d'
select @sql = @sql + @PKCols
select @sql = @sql + ' where i.' + @fieldname + ' <> d.' + @fieldname
select @sql = @sql + ' or (i.' + @fieldname + ' is null and d.' + @fieldname + ' is not null)'
select @sql = @sql + ' or (i.' + @fieldname + ' is not null and d.' + @fieldname + ' is null)'
exec (@sql)
end
end
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Jul 23, 2005
Hello.I tried to implement audit trail, by making an audit trail table with thefollowing fileds:TableName,FieldName,OldValue,NewValue,UpdateDate,t ype,UserName.Triggers on each table were set to do the job and everything was fine exceptthat in the audit trail you couldn't know which row exacltly wasupdated/inserted/deleted...Therefore I introduced 3 additional columnes(RowMark1, RowMark2, RowMark3) which should identify theinserted/updated/deleted row.For example, RowMark1 could be foreign key, RowMark2 could be primary key,and RowMark3 could be autonumber ID.But, when I have several rows updated, RowMark columnes values are identicalin all rows in the audit trail table! What is wrong with my code, and how tosolve it ?Thank you in advance!CREATE TRIGGER Trigger_audit_TableNameON dbo.TableNameFOR DELETE, INSERT, UPDATEAS BEGINdeclare @type nvarchar(20) ,@UpdateDate datetime ,@UserName nvarchar(100),@RowMark1 nvarchar (100),@RowMark2 nvarchar (100),@RowMark3 nvarchar (100)if exists (select * from inserted) and exists (select * fromdeleted)select @type = 'UPDATE',@RowMark1=d.ForeignKeyField,@RowMark2=d.PrimaryKey Field,@RowMark3=d.IDfrom deleted delse if exists (select * from inserted)select @type = 'INSERT',@RowMark1=i.ForeignKeyField,@RowMark2=i.PrimaryKey Field,@RowMark3=i.IDfrom inserted ielseselect @type = 'DELETE',@RowMark1=d.ForeignKeyField,@RowMark2=d.PrimaryKey Field,@RowMark3=d.IDfrom deleted dselect @UpdateDate = getdate() ,@UserName = USER/*The following code is repeated for every field in a table*/if update (FieldName) or @type = 'DELETE'insert dbo.AUDIT_TRAIL (TableName, FieldName, OldValue, NewValue,UpdateDate, UserName, type,RowMark1,RowMark2,RowMark3)select 'Descriptive Table Name', convert(nvarchar(100), 'DescriptiveField Name'),convert(nvarchar(1000),d.FieldName),convert(nvarchar(1000),i.FieldName),@UpdateDate, @UserName, @type, @RowMark1, @RowMark2,@RowMark3from inserted ifull outer join deleted don i.ID = d.IDwhere (i.FieldName <> d.FieldNameor (i.FieldName is null and d.FieldName is not null)or (i.FieldName is not null and d.FieldName is null))END
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Jul 20, 2005
HiI am looking to implement an audit/history table/tables but am lookingat doing this without the use of triggers.The reason for doing this is that the application is highlytransactional and speed in critical areas is important.I am worried that triggers would slow things down.I am more used to other database where by there is a utility to "dump"the contents of the transaction logs and use this for auditingpurposes. However SQL Server does not have this functionality (unlessthere is a sql server tool - 3rd party that I do not know about)Has anyone implemented something similar? Or used/using a 3rd partytool that will do this job.Effectively the clients would like to "look" at what happened - say 15minutes ago.thanksjohn
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Jan 11, 2008
I have ddl triggers in place to watch what people do to our various database environments. I can see when someone does something to a login, but I can't tell what was done. I have a sneaky someone creating accounts with sysadmin privs and I want to catch the source. I also want to know when someone changes a password on a sql account. Does anyone know of a way to do this?
___________________________
Geek At Large
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Nov 26, 2007
Hi,
I am trying to figure out which of these option is best suited for auditing. Although each one of them has its own pros/cons.
CLR trigger is easy to write and can be made generic so that it fits for any table required to be audited.
I tried both the option in test database and i found the CLR trigger performed poorly.
Results were :
For table A (3 columns) with TSQL trigger took less than a sec for 2500 sequential inserts.
While table B (3 columns) having same structure with CLR trigger took more than 20 sec for 2500 sequential inserts.
Has anybody done performance comparision of this 2 approaches ?
Please share results if any.
I wanted to validate that is my findings correct so that i select best optimized approach.
Thanks,
Jignesh
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Feb 6, 2006
Hi,
I am looking to track any changes made to any table within a db into a single audit table which will hold as fields: the table that has been updated/inserted, the field that was changed, its primary key, the old value and the new value specific to that field, and the date it was updated/inserted.
From what I have read, it does not look like this is possible with a trigger on table as it is not row specific and that I might have to control this from the business layer (vb.net). I am correct in this assumption, or is there a way of tracking specific data changes through triggers.
thanks
Welly
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Jul 13, 2007
Hello. Taking a typical use having a history table, maintained from a base table via triggers... Trying to see how/if that can be done using the SQl 2005 Service Broker method, with messaging? The thought is that if we can do the History table updates ASYNC, the user will not wait more than setting up the Broker message queue. I saw this article about something similar, but it deals with LOGON triggers.
http://www.sqlservercentral.com/columnists/FVandeputte/sqlserver2005logontriggers.asp
I'd think you can't do Hisotyr type triggers, with a message, because wouldn't you need to write all teh INSERTED/UPDATED data somewhere anyways? and there could be multiple rows affected in any given insert/update/delete, so could you even pass that thru to a Broker?
Anyone know of any references to using Broker Services for sending INSERTED/UPDATED data along for Historical versioning?
Also, was curious about error handling, because say you update teh base table, and then a problem occurs, and the Hisotry table is not updated. I want them in sync. Where is the message data stored, and is it accesible even if teh server reboots before the data is RECEIVED from teh QUEUE?
Thanks, Bruce
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Sep 21, 2007
Hi
I was curious whether it's possible to audit DELETE statements in the MS SQL database. I created a procedure (below), but I didn't find any event associated with DELETE statements.
Any help will be greatly appreciated!
Thanks,
Alla
CREATE proc sp_Turn_Audit_On
as
/************************************************** **/
/* Created by: SQL Profiler */
/* Date: 11/15/2006 05:16:40 PM */
/************************************************** **/
-- Create a Queue
declare @rc int
declare @TraceID int
declare @maxfilesize bigint
declare @StatusMsg varchar
declare @ServerTraceFile varchar
set @ServerTraceFile = 'E:Program FilesMicrosoft SQL ServerMSSQLTraceAudit_Info'
set @maxfilesize = 1024
-- Client side File and Table cannot be scripted
-- Set the events
declare @on bit
set @on = 1
exec @rc = sp_trace_create @TraceID OUTPUT, 0, N'\hostnamedbauditlogmy_dir', @maxfilesize, NULL
print @TraceID
if (@rc != 0) goto error
exec sp_trace_setevent @TraceID, 14, 1, @on
exec sp_trace_setevent @TraceID, 14, 6, @on
exec sp_trace_setevent @TraceID, 14, 9, @on
exec sp_trace_setevent @TraceID, 14, 10, @on
exec sp_trace_setevent @TraceID, 14, 11, @on
exec sp_trace_setevent @TraceID, 14, 12, @on
exec sp_trace_setevent @TraceID, 14, 13, @on
exec sp_trace_setevent @TraceID, 14, 14, @on
exec sp_trace_setevent @TraceID, 14, 16, @on
exec sp_trace_setevent @TraceID, 14, 17, @on
exec sp_trace_setevent @TraceID, 14, 18, @on
-- Set the Filters
declare @intfilter int
declare @bigintfilter bigint
exec sp_trace_setfilter @TraceID, 10, 0, 7, N'SQL Profiler'
-- Set the trace status to start
exec sp_trace_setstatus @TraceID, 1
--SELECT @StatusMsg = 'sp_trace_setstatus' + ' Error - ' + @TraceID
-- display trace id for future references
select TraceID=@TraceID
goto noCursor
error:
select ErrorCode=@rc
noCursor:
return
GO
exec sp_procoption N'sp_Turn_Audit_On', N'startup', N'true'
GO
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Oct 14, 1999
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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Nov 17, 2006
Hi,
I've created a few audit trace sessions and each of them is producing files.
The procedure I used is listed below:
IF EXISTS (SELECT 1 FROM sysobjects WHERE [name] = 'sp_Turn_Audit_On' AND type = 'P')
DROP PROC sp_Turn_Audit_On
GO
CREATE proc sp_Turn_Audit_On
as
/************************************************** **/
/* Created by: SQL Profiler */
/* Date: 11/15/2006 05:16:40 PM */
/************************************************** **/
-- Create a Queue
declare @rc int
declare @TraceID int
declare @maxfilesize bigint
set @maxfilesize = 1024
exec @rc = sp_trace_create @TraceID output, 2, N'E:Program FilesMicrosoft SQL ServerMSSQLTraceAudit_Info.trc', @maxfilesize, NULL
if (@rc != 0) goto error
-- Client side File and Table cannot be scripted
-- Set the events
declare @on bit
set @on = 1
begin
exec sp_trace_setevent @TraceID, 14, 1, @on
exec sp_trace_setevent @TraceID, 14, 6, @on
exec sp_trace_setevent @TraceID, 14, 9, @on
exec sp_trace_setevent @TraceID, 14, 10, @on
exec sp_trace_setevent @TraceID, 14, 11, @on
exec sp_trace_setevent @TraceID, 14, 12, @on
exec sp_trace_setevent @TraceID, 14, 13, @on
exec sp_trace_setevent @TraceID, 14, 14, @on
exec sp_trace_setevent @TraceID, 14, 16, @on
exec sp_trace_setevent @TraceID, 14, 17, @on
exec sp_trace_setevent @TraceID, 14, 18, @on
exec sp_trace_setevent @TraceID, 15, 1, @on
exec sp_trace_setevent @TraceID, 15, 6, @on
exec sp_trace_setevent @TraceID, 15, 9, @on
exec sp_trace_setevent @TraceID, 15, 10, @on
exec sp_trace_setevent @TraceID, 15, 11, @on
exec sp_trace_setevent @TraceID, 15, 12, @on
exec sp_trace_setevent @TraceID, 15, 13, @on
exec sp_trace_setevent @TraceID, 15, 14, @on
exec sp_trace_setevent @TraceID, 15, 16, @on
exec sp_trace_setevent @TraceID, 15, 17, @on
exec sp_trace_setevent @TraceID, 15, 18, @on
exec sp_trace_setevent @TraceID, 20, 1, @on
exec sp_trace_setevent @TraceID, 20, 6, @on
exec sp_trace_setevent @TraceID, 20, 9, @on
exec sp_trace_setevent @TraceID, 20, 10, @on
exec sp_trace_setevent @TraceID, 20, 11, @on
exec sp_trace_setevent @TraceID, 20, 12, @on
exec sp_trace_setevent @TraceID, 20, 13, @on
exec sp_trace_setevent @TraceID, 20, 14, @on
exec sp_trace_setevent @TraceID, 20, 16, @on
exec sp_trace_setevent @TraceID, 20, 17, @on
exec sp_trace_setevent @TraceID, 20, 18, @on
exec sp_trace_setevent @TraceID, 37, 1, @on
exec sp_trace_setevent @TraceID, 37, 6, @on
exec sp_trace_setevent @TraceID, 37, 9, @on
exec sp_trace_setevent @TraceID, 37, 10, @on
exec sp_trace_setevent @TraceID, 37, 11, @on
exec sp_trace_setevent @TraceID, 37, 12, @on
exec sp_trace_setevent @TraceID, 37, 13, @on
exec sp_trace_setevent @TraceID, 37, 14, @on
exec sp_trace_setevent @TraceID, 37, 16, @on
exec sp_trace_setevent @TraceID, 37, 17, @on
exec sp_trace_setevent @TraceID, 37, 18, @on
exec sp_trace_setevent @TraceID, 46, 1, @on
exec sp_trace_setevent @TraceID, 46, 6, @on
exec sp_trace_setevent @TraceID, 46, 9, @on
exec sp_trace_setevent @TraceID, 46, 10, @on
exec sp_trace_setevent @TraceID, 46, 11, @on
exec sp_trace_setevent @TraceID, 46, 12, @on
exec sp_trace_setevent @TraceID, 46, 13, @on
exec sp_trace_setevent @TraceID, 46, 14, @on
exec sp_trace_setevent @TraceID, 46, 16, @on
exec sp_trace_setevent @TraceID, 46, 17, @on
exec sp_trace_setevent @TraceID, 46, 18, @on
exec sp_trace_setevent @TraceID, 47, 1, @on
exec sp_trace_setevent @TraceID, 47, 6, @on
exec sp_trace_setevent @TraceID, 47, 9, @on
exec sp_trace_setevent @TraceID, 47, 10, @on
exec sp_trace_setevent @TraceID, 47, 11, @on
exec sp_trace_setevent @TraceID, 47, 12, @on
exec sp_trace_setevent @TraceID, 47, 13, @on
exec sp_trace_setevent @TraceID, 47, 14, @on
exec sp_trace_setevent @TraceID, 47, 16, @on
exec sp_trace_setevent @TraceID, 47, 17, @on
exec sp_trace_setevent @TraceID, 47, 18, @on
exec sp_trace_setevent @TraceID, 104, 1, @on
exec sp_trace_setevent @TraceID, 104, 6, @on
exec sp_trace_setevent @TraceID, 104, 9, @on
exec sp_trace_setevent @TraceID, 104, 10, @on
exec sp_trace_setevent @TraceID, 104, 11, @on
exec sp_trace_setevent @TraceID, 104, 12, @on
exec sp_trace_setevent @TraceID, 104, 13, @on
exec sp_trace_setevent @TraceID, 104, 14, @on
exec sp_trace_setevent @TraceID, 104, 16, @on
exec sp_trace_setevent @TraceID, 104, 17, @on
exec sp_trace_setevent @TraceID, 104, 18, @on
exec sp_trace_setevent @TraceID, 107, 1, @on
exec sp_trace_setevent @TraceID, 107, 6, @on
exec sp_trace_setevent @TraceID, 107, 9, @on
exec sp_trace_setevent @TraceID, 107, 10, @on
exec sp_trace_setevent @TraceID, 107, 11, @on
exec sp_trace_setevent @TraceID, 107, 12, @on
exec sp_trace_setevent @TraceID, 107, 13, @on
exec sp_trace_setevent @TraceID, 107, 14, @on
exec sp_trace_setevent @TraceID, 107, 16, @on
exec sp_trace_setevent @TraceID, 107, 17, @on
exec sp_trace_setevent @TraceID, 107, 18, @on
exec sp_trace_setevent @TraceID, 109, 1, @on
exec sp_trace_setevent @TraceID, 109, 6, @on
exec sp_trace_setevent @TraceID, 109, 9, @on
exec sp_trace_setevent @TraceID, 109, 10, @on
exec sp_trace_setevent @TraceID, 109, 11, @on
exec sp_trace_setevent @TraceID, 109, 12, @on
exec sp_trace_setevent @TraceID, 109, 13, @on
exec sp_trace_setevent @TraceID, 109, 14, @on
exec sp_trace_setevent @TraceID, 109, 16, @on
exec sp_trace_setevent @TraceID, 109, 17, @on
exec sp_trace_setevent @TraceID, 109, 18, @on
exec sp_trace_setevent @TraceID, 110, 1, @on
exec sp_trace_setevent @TraceID, 110, 6, @on
exec sp_trace_setevent @TraceID, 110, 9, @on
exec sp_trace_setevent @TraceID, 110, 10, @on
exec sp_trace_setevent @TraceID, 110, 11, @on
exec sp_trace_setevent @TraceID, 110, 12, @on
exec sp_trace_setevent @TraceID, 110, 13, @on
exec sp_trace_setevent @TraceID, 110, 14, @on
exec sp_trace_setevent @TraceID, 110, 16, @on
exec sp_trace_setevent @TraceID, 110, 17, @on
exec sp_trace_setevent @TraceID, 110, 18, @on
exec sp_trace_setevent @TraceID, 115, 1, @on
exec sp_trace_setevent @TraceID, 115, 6, @on
exec sp_trace_setevent @TraceID, 115, 9, @on
exec sp_trace_setevent @TraceID, 115, 10, @on
exec sp_trace_setevent @TraceID, 115, 11, @on
exec sp_trace_setevent @TraceID, 115, 12, @on
exec sp_trace_setevent @TraceID, 115, 13, @on
exec sp_trace_setevent @TraceID, 115, 14, @on
exec sp_trace_setevent @TraceID, 115, 16, @on
exec sp_trace_setevent @TraceID, 115, 17, @on
exec sp_trace_setevent @TraceID, 115, 18, @on
-- Set the Filters
declare @intfilter int
declare @bigintfilter bigint
exec sp_trace_setfilter @TraceID, 10, 0, 7, N'SQL Profiler'
-- Set the trace status to start
exec sp_trace_setstatus @TraceID, 1
-- display trace id for future references
select TraceID=@TraceID
goto noCursor
error:
select ErrorCode=@rc
noCursor:
return
end
Unfortunately, I didn't mention the @stoptime for each of the trace sessions and now I'm unable to delete the trace files. Is there any select statement that will be useful in finding the @traceid for these auditting sessions? Also, how am I able to stop the sessions without stopping the related services?
Thank you in advance.
Best regards,
Alla
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Mar 31, 2008
Currently running Sql Server 2005Is it possible to issue the delete command and capture the affected rows asxml types that will be stored in an audit table with an xml column?Something along the lines of:delete from source_tableoutput(deleted.*into audit_table (xml_audit_column)for xml auto)where source_table.column = @delete_value
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Oct 25, 2004
Auditors want us to track when Insert, Update and Delete failures occur. Is this possible in SQL 2000?
They also want us to track schema changes. Is this possible?
Thanks, Dave
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Nov 13, 2006
Hi,
I have a parent table (Projects) and few child tables (Project invoices, Project Sub-consultants, etc). Typically, 'Projects' table contain details about projects. Other child tables contain specific information about a particular project, like invoices, details of sub-consultants, etc.
I introduced a 'After Delete' trigger in parent table, which should delete all rows in child tables, at once the row is deleted in parent table. The code I have used is as follows:
Declare @PID char(8) -- Project ID SET @PID = (Select ProjNo from Deleted)BEGIN delete from ProjInvoice where ProjectID = @PID END
Now, when I delete a row in parent table and see the child tables, only the particular field says 'NULL' and all other field remains. (I have tested the SQL statement as stand-alone query and it works fine).
What's wrong with the trigger?
Thanks in advance.
Sathya
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Mar 21, 2008
Hi,
I have 2 table that are exactly the same and want to create a trigger on table1 that will do the following:
Every time i delete from table1, the "Instead of delete Trigger" will automaticaly delete the data from table2 and not from table1.
Can anyone help me?
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Jun 8, 2015
I have a windows 2012 server and will like to know how to audit DMLs on a table (delete, truncate, update) on this table, I want to see all T-Sql DML statement carried out on this table in a file.How can this be achieved using if possible something already built into SSMS.
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Jul 21, 2014
I would like to do a dynamic audit for the tables ( columns which needs to audited will also change dynamically). For example,
I am having 3 tables, table1 table2 table3
User can select Table 1 ( col 1, col3, col4) and Table2 ( col 3 and col 5).
I want to achieve this functionality without any triggers or output clause, so only one option which is left is "ChangeDataCapture" ( to my knowledge). So i did a small POC. The problem here is, system captures all the field data even though value doesn't change, for example,
TableA
CountryId CountryCode CountryName
1 IND INDIA
Update TableA
Set CountryCode = 'INDI', CountryName = 'INDIA'
Where CountryId = 1
On running the above query, CDC stores the value for both the columns, but i don't want this. I only wanted to store the CountryCode value alone.
CREATE TABLE [dbo].tCountry(
CountryId bigint IDENTITY(1,1) NOT NULL Primary Key,
CountryName [varchar](50) NULL,
CountryCode [varchar](50) NULL,
CreateBy bigint
)
EXEC sys.sp_cdc_enable_db
[code]....
--See here, i want to display CountryName as NULL, because i didnt do any changes in this column
--Why am i asking this bcoz, Frm my front end application, i will send the complete list of columns and the values to the update query.
Select * from cdc.dbo_tCountry_CT Where __$operation in (3,4)
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Aug 31, 2007
I am trying to write triggers on each tables in my database to audit data changes. My AuditLog table consists of the following columns -
LoginName varchar(100) - user name
Action varchar(5) - this will store 'INSERT','UPDATE','DELETE'
TableName varchar(30) - name of the table updated
PrimaryKey int - primary key of the record updated
ColumnName varchar(30) - name of the column updated
OldValue varchar(1000) - old value converted to varchar
NewValue varchar(1000) - new value converted to varchar
RecUpdDate datetime - record update date.
This table design will work for tables with single column primary keys. However, it will not work for tables with composite primary keys. Any suggestions on how to make this work with composite primary keys? I prefer not to change the tables in my database to use single column primary key.
Thanks in advance.
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Jul 20, 2005
Hi everybody,I just wrote my first two triggers and from the minimal amount of testing Ihave done, they work! However, I was hoping I could get some feedback fromthose of you more experienced in writing triggers.Here is the first one:CREATE TRIGGER DecreInters ON InteractionFOR DELETEASdeclare @stu INTdeclare @num INTselect @stu = Student_FK from deletedselect @num = (select Inters from Student where Student_Key = @stu)UPDATE StudentSET Inters = @num - 1FROM StudentWHERE Student.Student_Key = @stuHere is the second one:CREATE TRIGGER IncreIntersON InteractionAFTER INSERTASdeclare @stu INTdeclare @num INTdeclare @last_rec INTselect @last_rec = @@IDENTITYselect @stu = (select Student_FK from Interaction where Interaction_ID =@last_rec)select @num = (select Inters from Student where Student_Key = @stu)UPDATE StudentSET Inters = @num + 1FROM StudentWHERE Student.Student_Key = @stuAre there any shortcuts I could use or things I could do to make thesetriggers more efficient. Please give me some feedback and let me know ofany problems that might possibly be caused due to my doing this improperly.Thanks ahead,Corey
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Dec 16, 2005
Quote: Originally Posted by mrtwice99 Yes, but how would you figure out which row was "before" it?
Code:
SELECT id, sortOrder, name FROM daTable
WHERE id = 937 OR sortorder =
( select max(sortorder) from daTable
where sortorder < ( select sortorder from daTable where id = 937) )
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Nov 26, 2007
this is my Delete Query NO 1
alter table ZT_Master disable trigger All
Delete ZT_Master WHERE TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0)
alter table ZT_Master enable trigger All
I have troble in Delete Query No 2
here is a select statemnt , I need to delete them
select d.* from ZT_Master m, ZT_Detail d where (m.Prikey=d.MasterKey) And m.TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND m.TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0)
I tried modified it as below
delete d.* from ZT_Master m, ZT_Detail d where (m.Prikey=d.MasterKey) And m.TDateTime> = DATEADD(month,DATEDIFF(month,0,getdate())-(select Keepmonths from ZT_KeepMonths where id =1),0) AND m.TDateTime< DATEADD(month,DATEDIFF(month,0,getdate()),0)
but this doesn't works..
can you please help?
and can I combine these 2 SQL Query into one Sql Query? thank you
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Nov 1, 2014
I have made a server security audit and specify from database audit specification to audit "select" on a certain user and on a certain table. I logged in by this user and made the select statement..when i run this query
"select * from sys.fn_get_audit_file('d:Auditaudit1*',null,null)"
It return a value at which time the query has done
after 15 minutes i repeated the same action, i run the audit query and the same result is showed off on the panel.is it suppose to return a list of values by how many times this user has made the select statement on that table ? for example at 5:00 pm then 6:00 pm and so on
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Feb 5, 2007
From Newbie to Newbie,
Add reference to:
'Microsoft ActiveX Data Objects 2.8 Library
'Microsoft ADO Ext.2.8 for DDL and Security
'Microsoft Jet and Replication Objects 2.6 Library
--------------------------------------------------------
Imports System.IO
Imports System.IO.File
Code Snippet
'BACKUP DATABASE
Public Shared Sub Restart()
End Sub
'You have to have a BackUps folder included into your release!
Private Sub BackUpDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BackUpDB.Click
Dim addtimestamp As String
Dim f As String
Dim z As String
Dim g As String
Dim Dialogbox1 As New Backupinfo
addtimestamp = Format(Now(), "_MMddyy_HHmm")
z = "C:Program FilesVSoftAppMissNewAppDB.mdb"
g = addtimestamp + ".mdb"
'Add timestamp and .mdb endging to NewAppDB
f = "C:Program FilesVSoftAppMissBackUpsNewAppDB" & g & ""
Try
File.Copy(z, f)
Catch ex As System.Exception
System.Windows.Forms.MessageBox.Show(ex.Message)
End Try
MsgBox("Backup completed succesfully.")
If Dialogbox1.ShowDialog = Windows.Forms.DialogResult.OK Then
End If
End Sub
Code Snippet
'RESTORE DATABASE
Private Sub RestoreDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
RestoreDB.Click
Dim Filename As String
Dim Restart1 As New RestoreRestart
Dim overwrite As Boolean
overwrite = True
Dim xi As String
With OpenFileDialog1
.Filter = "Database files (*.mdb)|*.mdb|" & "All files|*.*"
If .ShowDialog() = Windows.Forms.DialogResult.OK Then
Filename = .FileName
'Strips restored database from the timestamp
xi = "C:Program FilesVSoftAppMissNewAppDB.mdb"
File.Copy(Filename, xi, overwrite)
End If
End With
'Notify user
MsgBox("Data restored successfully")
Restart()
If Restart1.ShowDialog = Windows.Forms.DialogResult.OK Then
Application.Restart()
End If
End Sub
Code Snippet
'CREATE NEW DATABASE
Private Sub CreateNewDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
CreateNewDB.Click
Dim L As New DatabaseEraseWarning
Dim Cat As ADOX.Catalog
Cat = New ADOX.Catalog
Dim Restart2 As New NewDBRestart
If File.Exists("C:Program FilesVSoftAppMissNewAppDB.mdb") Then
If L.ShowDialog() = Windows.Forms.DialogResult.Cancel Then
Exit Sub
Else
File.Delete("C:Program FilesVSoftAppMissNewAppDB.mdb")
End If
End If
Cat.Create("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Program FilesVSoftAppMissNewAppDB.mdb;
Jet OLEDB:Engine Type=5")
Dim Cn As ADODB.Connection
'Dim Cat As ADOX.Catalog
Dim Tablename As ADOX.Table
'Taylor these according to your need - add so many column as you need.
Dim col As ADOX.Column = New ADOX.Column
Dim col1 As ADOX.Column = New ADOX.Column
Dim col2 As ADOX.Column = New ADOX.Column
Dim col3 As ADOX.Column = New ADOX.Column
Dim col4 As ADOX.Column = New ADOX.Column
Dim col5 As ADOX.Column = New ADOX.Column
Dim col6 As ADOX.Column = New ADOX.Column
Dim col7 As ADOX.Column = New ADOX.Column
Dim col8 As ADOX.Column = New ADOX.Column
Cn = New ADODB.Connection
Cat = New ADOX.Catalog
Tablename = New ADOX.Table
'Open the connection
Cn.Open("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Program FilesVSoftAppMissNewAppDB.mdb;Jet
OLEDB:Engine Type=5")
'Open the Catalog
Cat.ActiveConnection = Cn
'Create the table (you can name it anyway you want)
Tablename.Name = "Table1"
'Taylor according to your need - add so many column as you need. Watch for the DataType!
col.Name = "ID"
col.Type = ADOX.DataTypeEnum.adInteger
col1.Name = "MA"
col1.Type = ADOX.DataTypeEnum.adInteger
col1.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col2.Name = "FName"
col2.Type = ADOX.DataTypeEnum.adVarWChar
col2.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col3.Name = "LName"
col3.Type = ADOX.DataTypeEnum.adVarWChar
col3.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col4.Name = "DOB"
col4.Type = ADOX.DataTypeEnum.adDate
col4.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col5.Name = "Gender"
col5.Type = ADOX.DataTypeEnum.adVarWChar
col5.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col6.Name = "Phone1"
col6.Type = ADOX.DataTypeEnum.adVarWChar
col6.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col7.Name = "Phone2"
col7.Type = ADOX.DataTypeEnum.adVarWChar
col7.Attributes = ADOX.ColumnAttributesEnum.adColNullable
col8.Name = "Notes"
col8.Type = ADOX.DataTypeEnum.adVarWChar
col8.Attributes = ADOX.ColumnAttributesEnum.adColNullable
Tablename.Keys.Append("PrimaryKey", ADOX.KeyTypeEnum.adKeyPrimary, "ID")
'You have to append all your columns you have created above
Tablename.Columns.Append(col)
Tablename.Columns.Append(col1)
Tablename.Columns.Append(col2)
Tablename.Columns.Append(col3)
Tablename.Columns.Append(col4)
Tablename.Columns.Append(col5)
Tablename.Columns.Append(col6)
Tablename.Columns.Append(col7)
Tablename.Columns.Append(col8)
'Append the newly created table to the Tables Collection
Cat.Tables.Append(Tablename)
'User notification )
MsgBox("A new empty database was created successfully")
'clean up objects
Tablename = Nothing
Cat = Nothing
Cn.Close()
Cn = Nothing
'Restart application
If Restart2.ShowDialog() = Windows.Forms.DialogResult.OK Then
Application.Restart()
End If
End Sub
Code Snippet
'COMPACT DATABASE
Private Sub CompactDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
CompactDB.Click
Dim JRO As JRO.JetEngine
JRO = New JRO.JetEngine
'The first source is the original, the second is the compacted database under an other name.
JRO.CompactDatabase("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Program
FilesVSoftAppMissNewAppDB.mdb; Jet OLEDB:Engine Type=5", "Provider=Microsoft.Jet.OLEDB.4.0;
Data Source=C:Program FilesVSoftAppMissNewAppDBComp.mdb; JetOLEDB:Engine Type=5")
'Original (not compacted database is deleted)
File.Delete("C:Program FilesVSoftAppMissNewAppDB.mdb")
'Compacted database is renamed to the original databas's neme.
Rename("C:Program FilesVSoftAppMissNewAppDBComp.mdb", "C:Program FilesVSoftAppMissNewAppDB.mdb")
'User notification
MsgBox("The database was compacted successfully")
End Sub
End Class
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Aug 12, 2007
I am trying to write one sql statement that deletes from two tables. Is it possible ? If yes, any thoughts ?
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Jan 18, 2006
I need help...here is the problem.Last weekend, the servers in our datacenter where moved around. After thismove, and maybe coincidental, 1 server is performing very poor. Afterrunning a trace with SQL Profiler, I saw the problem which was laterconfirmed with another tool for SQL server performance monitoring. It seemsthat all connections to the SQL server (between 200 - 400) are doing a login/ logout for each command that they process. For example, the user'sconnection will login, perform a SELECT, and then logout. This is not a..NET application. The client software was not changed, it is still thesame. The vendor has said that it is not supposed to do that, it issupposed to use 1 connection that log's on in the morning and logs off atthe end of the day or whenever the user exits. 1 user may have severalconnections to the database.At times, the server is processing over 250 login / logouts (avgeraged for30 second period). Has anyone seen this problem? I have the server inAUDIT FAILUREs only. The server has become very unresponsive, things thattook 3 seconds now take over 15 seconds.Any ideas???
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May 18, 2003
Hello, everyone. I am sorry I haven't been around for long but I have got this confusion. I haven't been able to set triggers between 2 tables.
I have got a set of data in 1 table and another set in the other table. I want to set the trigger by comparing the data column from one table to another.
All I want to know is is ti possible to do it? Because I have been told that I can only set triggers on only one table.
Any help is much appreciated.
Thanks in advance.
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Apr 20, 1999
I'm thinking of building a trigger against a system table(sysobjects) in
database(a) on server(a) that will assist me in updating a table in
database(b)on server(b). What I need to know from table(b)is if a new table
has been added and removed from database(a) on server(a). I want to use a
store procedure to query the table(b). I was thinking of building a trigger
against my sysobjects table that would update table(b) whenever any tables
are added or removed from database(a). Has anyone built triggers against
system tables? I am running SQL 7.
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Feb 14, 2008
Hi,
I have decided to use CLR Triggers to synchronize data between two different tables but I have a problem. The scenario is this. I do an insert in Table1. Table1 firest the trigger which then inserts a record in Table2. The trigger in Table2 fires a trigger which does an insert to Table1 again.
I need to find a way to disable the trigger so that it will not go in an infinite loop when I insert a record in either of the tables. What I have done so far is to disable Table2's trigger before I commit my insert to Table2 so that Table2's trigger won't fie. I will then enable the trigger after the insert is committed. Also, I have a webservice which manages the inserts/updates/deletes. I call webmethods from this webservice in my clr triggers.
Help please!
Thanks,
Ryan
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Apr 15, 2008
How can we write triggers on system table dbo.sysobjects,
when i tries to write a trigger, it is giving an error that permission is denied.
I even give a permission of "allow modifications to system catalogs" in Enterprise manager.
still it is not giving permission.
How can i create a trigger on dbo.sysobjects table?
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Feb 27, 2002
Does anyone know if it's possible to create a trigger on the sysdatabases table in the master database? I keep getting permission denied which I'm not sure is right.
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Mar 1, 2002
Hi,
Does anyone know of a way I can create a trigger on a system table (say sysdatabases in master). I know this is not supported but presumably there's a way it can be done by referencing it's equivilant in Information_schema somewhere.
I'm trying to write a script that will automatically set up a backup schedule for a database that has just been created. I was hoping the trigger would query the sysdatabases table for new database name entries, log necessary info in an audit table and then call a backup script to set up the schedule. Any ideas??
Thanks
Rob
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