Is it possible to create a trigger on a subscriber table so that when something on the subsriber table is changed a trigger can send some of the changes made to the subscriber table to another table?
View 6 Replies
Hi,
I have a trigger set on TABLE1 so that any update to this column should set off trigger to write to the AUDIT log table, it works fine otherwise but not the very first time when table1 has null in the column. if i comment out
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
Insert into dbo.AUDIT (audit_req, audit_new_value, audit_field, audit_user)
select i.req_guid, i.req_fname, 'req_fname', IsNull(i.req_last_update_user,@default_user) as username from inserted i, deleted d
where i.req_guid = d.req_guid
and i.req_fname <> d.req_fname
Thanks,
leo
I have 1 table to be merge replicated to 2 other servers (DATA5 and DATA5R). Whichever server I push a subscription to first works just fine. The second server get the following error.
Table 'UPDATE_LOG' does not exist in the Subscriber database.
(Source: DATA5R (Data source); Error number: 21078)
---------------------------------------------------------------------------------------------------------------
'. Check sysobjects.
(Source: DATA5R (Data source); Error number: 2501)
---------------------------------------------------------------------------------------------------------------
The process could not deliver the snapshot to the Subscriber.
(Source: Merge Replication Provider (Agent); Error number: -2147201001)
---------------------------------------------------------------------------------------------------------------
I'm not sure why it expect the table to be there already. It doesn't on the first server. Am I missing something. If I create the substription for DATA5R first then it works and DATA5 fails.
What am I missing?
When you setup a subscriber to a publication, that is pull the publication, does it copy all the rows or does it keep track of which rows changed.
View 1 Replies View RelatedI would like to add a column to a published table but not have that column replicated to subscribers. I can accomplish this via the UI by adding the column and then unchecking it. This adds the column to the publisher table but does not replicate it to the subscriber.
I am looking for a programmatic method to add a column to the base table and unmark it for replication.
Thanks for your assistance.
I do not understand why I have this issue.
SQL 2012 SP2, Transactional Replication.
I have added a new table to a database (existing publication) using T-SQL, I then opened up publisher properties, and ticked the new table/article so that it would be added to the subscriber. It did not show up.
I did not use a snapshot to initialize the subscription.
Immediate Synch is 0.
allow_anonymous is 0.
I mark the subscription to be reinitialized. When I start the snapshot agent I get '0% A snapshot was not generated because no subscriptions needed initialization'.
What could I be doing wrong, or missed out? Do I need to drop and recreate the subscription to get the article to show up?
Hey,
I'm new to this whole SQL Server 2005 thing as well as database design and I've read up on various ways I can integrate business constraints into my database. I'm not sure which way applies to me, but I could use a helping hand in the right direction.
A quick explanation of the various tables I'm dealing with:
WBS - the Work Breakdown Structure, for example: A - Widget 1, AA - Widget 1 Subsystem 1, and etc.
Impacts - the Risk or Opportunity impacts for the weights of a part/assembly. (See Assemblies have Impacts below)
Allocations - the review of the product in question, say Widget 1, in terms of various weight totals, including all parts. Example - September allocation, Initial Demo allocation, etc. Mostly used for weight history and trending
Parts - There are hundreds of Parts which will eventually lead to thousands. Each part has a WBS element. [Seems redundant, but parts are managed in-house, and WBS elements are cross-company and issued by the Government]
Parts have Allocations - For weight history and trending (see Allocations). Example, Nut 17 can have a September 1st allocation, a September 5th allocation, etc.
Assemblies - Parts are assemblies by themselves and can belong to multiple assemblies. Now, there can be multiple parts on a product, say, an unmanned ground vehicle (UGV), and so those parts can belong to a higher "assembly" [For example, there can be 3 Nut 17's (lower assembly) on Widget 1 Subsystem 2 (higher assembly) and 4 more on Widget 1 Subsystem 5, etc.]. What I'm concerned about is ensuring that the weight roll-ups are accurate for all of the assemblies.
Assemblies have Impacts - There is a risk and opportunity impact setup modeled into this design to allow for a risk or opportunity to be marked on a per-assembly level. That's all this table represents.
A part is allocated a weight and then assigned to an assembly. The Assemblies table holds this hierarchical information - the lower assembly and the higher one, both of which are Parts entries in the [Parts have Allocations] table.
Therefore, to ensure proper weight roll ups in the [Parts have Allocations] table on a per part-basis, I would like to check for any inserts, updates, deletes on both the [Parts have Allocations] table as well as the [Assemblies] table and then re-calculate the weight roll up for every assembly. Now, I'm not sure if this is a huge performance hog, but I do need to keep all the information as up-to-date and as accurate as possible. As such, I'm not sure which method is even correct, although it seems an AFTER DML trigger is in order (from what I've gathered thus far). Keep in mind, this trigger needs to go through and check every WBS or Part and then go through and check all of it's associated assemblies and then ensure the weights are correct by re-summing the weights listed.
If you need the design or create script (table layout), please let me know.
Thanks.
Are there any limitations or gotchas to updating the same table whichfired a trigger from within the trigger?Some example code below. Hmmm.... This example seems to be workingfine so it must be something with my specific schema/code. We'reworking on running a SQL trace but if anybody has any input, fireaway.Thanks!create table x(Id int,Account varchar(25),Info int)GOinsert into x values ( 1, 'Smith', 15);insert into x values ( 2, 'SmithX', 25);/* Update trigger tu_x for table x */create trigger tu_xon xfor updateasbegindeclare @TriggerRowCount intset @TriggerRowCount = @@ROWCOUNTif ( @TriggerRowCount = 0 )returnif ( @TriggerRowCount > 1 )beginraiserror( 'tu_x: @@ROWCOUNT[%d] Trigger does not handle @@ROWCOUNT[color=blue]> 1 !', 17, 127, @TriggerRowCount) with seterror, nowait[/color]returnendupdate xsetAccount = left( i.Account, 24) + 'X',Info = i.Infofrom deleted, inserted iwhere x.Account = left( deleted.Account, 24) + 'X'endupdate x set Account = 'Blair', Info = 999 where Account = 'Smith'
View 1 Replies View RelatedThis 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.
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
Buffalo
Tyson
3/4/04
5
Tom
Finney
Jones
1/1/2000
I want to be able to create a trigger that updates table 2 when a row is inserted into table 1. However I€™m not sure how to increment the ID in table 2 or to update only the row that has been inserted.
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:
create trigger test_trigger
on a
for insert
as
insert into b(ID)
select i.id
from inserted i
where
--specific USER
We have a database we are replicating to about 8 SQL Express subscribers from a SQL 2012 SP2 publisher. The size of the database grew too large for the 10GB license limit for SQL Express and now replication refuses to replicate any of our deletions on the publisher to reduce the size of the database. I've come up with a few options below.
1) Drop one of the larger table indices on the subscriber database to get below the size restriction. Permit the replication to replicate the deleted records and then rebuild the index. (I'm not sure how important an index is to this table. Is it merely performance related?)
2) "Upsize" SQL Express to SQL Standard on the affected boxes. Allow the deletes to replicate. Backup the database, downgrade to SQL Express and restore the database back to SQL a new SQL express instance. This would involve a lot of work on each box. I'd like to avoid it if possible.
I write a insert trigger on my table LeaveRegister(1000 rows) and inserting rows in audit table, but when i inserting a row in LeaveRegister table. In audit table 1000 + 1 rows are inserting every time.
View 6 Replies View RelatedI am trying to update one table when records are inserted in another table.
I have added the following trigger to the table “ProdTr” and every time a record is added I want to update the field “Qty3” in the table “ActInf” with a value from the inserted record.
My problem appears to be that I am unable to fill the variables with values, and I cannot understand why it isn’t working, my code is:
ALTER trigger [dbo].[antall_liter] on [dbo].[ProdTr]
for insert
as
begin
declare @liter as decimal(28,6)
[Code] ....
I want to insert a row for a Global user in Table 'A' whenever ADO.Net code inserts a Local user row into same table. I recommended using a trigger to implement this functionality, but the DBA was against it, saying that stored proecedures should be used, since triggers are unreliable and slow down the system by placing unecessary locks on the table. Is this true OR the DBA is saying something wrong? My thinking is that Microsoft will never include triggers if they are unreliable and the DBA is just wanting to offload the extra DBA task of triggers to the programmer so that a stored procedure is getting called, so he has less headache on his hands.Thanks
View 2 Replies View RelatedIf the id1 will change in table1 it should also change the corresponding id1 field in table2 it does not do anything.
CREATE TRIGGER [dbo].[IDCHANGE]
ON [dbo].[table1]
AFTER UPDATE
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
[Code] .....
I want to pass the 'inserted' table from a trigger into an SP, I think I need to do this by dumping inserted table into a temporary table and passing the temp table. However, I need to do this for many tables, and don't want to list all the column names for each table/trigger (maintenance nightmare).
Can I dump the 'inserted' table to a temp table WITHOUT specifying the column names?
Any idea where to look for?
thanks,
im using DTS to copy a table from one database to another and i need to create a new table based off the table genereate by DTS. Can i place a trigger on that table?
View 2 Replies View RelatedI would like to run an Update Trigger once a year on a Vacation Table that would do the following: Update the field of VacationCarriedOver for each row in the table. So if a person had 10 days left they can only carry over half so it would set the CarriedOver to 5 and add that to the TotalDays of Vacation field. I'm not comfortable w/Triggers so any help would be a great help. Thanks
View 6 Replies View RelatedHi,
I have a Insert / Update Trigger on Table called TBL_A. Inside the trigger I am updating the same table TBL_A.
Will this cause recursion of the trigger? And will it keep on firing again and again?
Thanks in advance ...jfk
hi, i am writing a trigger to log inserts,updates and deletes in a table and would like to also enter the user details ie who did the transaction. is the spid in the inserted table? if not how do i get this information?
TIA
Hi,
I want to create a trigger on sysfiles. I had logged in as sa account but able to create it... I am getting the below error...
Server: Msg 229, Level 14, State 5, Procedure TAU_Sysfiles_WSCLog_Reminder, Line 65535
CREATE TRIGGER permission denied on object 'sysfiles', database 'WorldScope_Dev', owner 'dbo'.
Can any body please help me how to go ahead creating trigger in the system tables...
Thanks in Advance...
-Mohit.
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
Hi,
Can I create trigger on a system table in the Master database, what I need is to create trigger on sysxlogins table.
Thanks
I have an Order header table (ORDER_HEADER) and I want to update a lines table (ORDER_LINES), colum DATE via a trigger (when UPDATE or INSERT).
What is the synthax ?
Thanks
Hi,everyone.
I have a problem with SQL SERVER 2005, described as follows,
(1) To create two tables MASTERINFO and PRODUCT,
----TABLE MASTERINFO-----
CREATE TABLE MASTERINFO
(
ID CHAR(2),
FIELDNAME VARCHAR(50),
FIELDTYPE VARCHAR(50),
);
Table MASTERINFO with following records,
MASTERINFO('1','PRODUCTNAME','VARCHAR(50)');
MASTERINFO('2','PRODUCTADD','VARCHAR(50)');
MASTERINFO('3','PRODUCTEXP','VARCHAR(50)');
------TABLE PRODUCT-----
CREATE TABLE PRODUCT
(
ID CHAR(5),
PRODUCTNAME VARCHAR(50),
PRODUCTADD VARCHAR(50),
PRODUCTEXP VARCHAR(50),
);
In our project, field name and field data type of fields PRODUCTNAME,PRODUCTADD and PRODUCTEXP in the table PRODUCT are changed with values of fields FIELDNAME and FIELDTYPE in the table MASTERINFO.That is to say, when using the following UPDATE statement,
UPDATE MASTERINFO SET FIELDNAME='PRODUCTNAME1',FIELDTYPE='VARCHAR(60)' WHEN ID='1';
We hope that field name of field PRODUCTNAME is automatically changed into PRODUCTNAME1 and data type of its is changed into 'VARCHAR(60) in the table PRODUCT.
I want to use a trigger to realize, but I failed for ALTER TABLE statement can not be included in the trigger. How can I do?
Please give me some advice. Thank you in advance.
I have 4 colums in a table
Project, Sections,Tasks,Subtasks
Each subtask will haven a row.
I need to write a trigger when I delete a task it needs to delete all the subtasks relating to it. When I delete a section it needs to delete all the tasks and subasks relating to it. similarly for project.
This trigger for task-subtask works.
CREATE TRIGGER "[Deletetasktrigger]" ON [Tbl] FOR DELETE AS
SET NOCOUNT ON
/* * CASCADE DELETES TO '[Tbl B]' */
DELETE [tbl] FROM deleted, [Tbl] WHERE deleted.[task] = [Tbl].[task]
THis works fine. But when I do it for sections I get this error.
"Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32)" ..
Help Please!!!!!!
Can we use tables variables in triggers... if yes, any example...
View 4 Replies View RelatedI have an application that creates and makes use of a table in tempdb.My problem is that I have a couple of triggers on this table that getdropped everytime SQL Server restarts (due to the fact that tempdb getsrecreated). Is there a way to automatically recreate these triggerseach time SQL Server starts? It looks like it is not possible to have a"create trigger" statement within a stored procedure. I would greatlyappreciate some ideas....thanks in advance!
View 3 Replies View RelatedI have a 3rd party program that creates some tables in my sql server2005 database, then it does inserts on the tables. Is there a way Icould create a system level trigger that would immediately andautomatically modfiy the table structure after the table is created(hopefully before the inserts occur)? I need to change a field fromnumeric(5, 0) to numeric(15, 0).Thanks,Roger
View 3 Replies View RelatedHi all,I have two tables tbl_A and tbl_B.Table Definitions:tbl_A (field_1, field_2, field_3)tbl_B (field_1, field_2)I would like to populate tbl_B when a record is inserted into tbl_A.Note that tbl_A.field_1 = tbl_B.field_1 and tbl_A.field_2 =tbl_B.field_2 .How do I write a trigger on tbl_A to get the corresponding recordinserted into tbl_B?RegardsJune.....
View 2 Replies View RelatedHi.I have a problem I hope someone can help me with.I have a database of events. Each event has a date and a duration(days).What I need to do is to be able to display search for events on someweb pages. My problem is that if an event is on say 15 nov 2004 andhas a duration of 3 days, at the moment if someone searches for the16th nov 2004 that event wont show up. To solve this what I have triedto do is put a trigger on my events table that populates another tableeach time a record is inserted. In the other table (orderedevents) anentry is added for each day specified in the duration field. I can thequery this table for the search. For example if this is added into theevents tableTitle: Event1Date: 15/11/2004Duration: 3Then this would be added to the orderedevents tableTitle: Event1Date: 15/11/2004Duration: 3Title: Event1Date: 16/11/2004Duration: 3Title: Event1Date: 17/11/2004Duration: 3This is what I have got so far. Someone kindly helped me with thisbefore but they had developed it on MySql, I'm using Sql Server and itdoesn't seem to work. All it does is add a blank row to OrderedEvents.Can anyone suggest any amendments that will make it work on SqlServer?CREATE Trigger TriggerInsertOrderedEventsON eventsFOR INSERTASSET NOCOUNT ONDECLARE @CountDuration int,@FixedDuration int,@eventdate datetime,@EventTitle varcharSET @CountDuration = 0SET @EventTitle = (SELECT EventTitle FROM inserted)SET @FixedDuration = (SELECT EventDuration FROM inserted)SET @EventDate = (SELECT EventDate FROM inserted)WHILE (@CountDuration <= @FixedDuration - 1)BEGININSERT OrderedEvents (Eventdate,EventDuration,EventTitle)VALUES(dateadd(day,@CountDuration,@EventDate),@Fix edDuration,@EventTitle)SET @CountDuration = @CountDuration + 1ENDSET NOCOUNT OFFThanks in advance.
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