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 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.)
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
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
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
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
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?
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.
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.
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.
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?
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
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?
-- 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?
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
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?
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.
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.
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.
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
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) )
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
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
'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
'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")
'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
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")
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???
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.
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.
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.
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?
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.
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??
