Is there a way to make a sql table trigger fire off conditionally on calling app?We have this vendor app database which also have in-house custom built app operates on them. Some one are thinking using triggers to audit second part of the app activities, but want to skip the vendor app part of operation for at least performance reason.To my knowledge, the answer is no. An insert trigger will fire off whenever there is an insert. It doesn't provide a mechanism to check which app/process first, then conditionally fire or not fire.
Does anyone know how to do the following. I'm trying to mimicreplication with triggers.I have 2 databases, each have these 2 tables.1.USERSID intNAME varchar(20)2.CHANGESTABLE varchar(20)TYPE varchar(10)col1 varchar(20)col2 varchar(20)On the USERS table I have a for insert trigger. Whenever a new user isadded the trigger puts an entry into the CHANGES table such as("USERS", "INSERT", "1", "Fred")I now have an application (vb.net) that monitors the CHANGES table onserver1. If it finds an entry it determines the table using the TABLEcolumn and performs the necessary insert and deletes the entry fromCHANGES. Now the problem is server2 also has an for insert trigger onthe USERS table so it puts an entry into CHANGES on server2. As youcan imagine this goes around in a loop.What I was hoping for was someway of saying, "I'm inserting from myapplication so don't do the trigger".Any ideas gratefully appreciated.Steve.
I have tables that I want to fire either an update or insert trigger on.I could write a script containing a long list of inserts but I'm looking forsomething simpler. Would isql work? Any special conditions to get it towork?I've tried tricks like 'update x set col = col' or 'update x set col = col +'' 'All the alternatives seem to have problems. Any ideas?----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==----http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups----= East and West-Coast Server Farms - Total Privacy via Encryption =----
I am sure someone must have run into this before. I have a couple of tables with a parent child relationship.
I created a trigger on the insert of the parent but don't want it to fire until both the parent and child have been inserted into.
However sometimes the child may not get inserted in to at all. In other words it is a 1 to 0 or more relationship.
I created the whole insert into the parent and the child and wrapped it all up in a transaction hoping that the trigger would not fire until the transaction actually completed.
However such is not the case and it fires when the parent is inserted into but nothing is inserted into the child yet even though that is part of the transaction.
Is it possible to postpone trigger fire until after both parent and child table values have been inserted?
I have two different SQL 2008 servers, I don't have permission to create a linked server in any of them. i created a trigger on server1.table1 to insert the same record to the remote server server2.table1 using OPENROWSET
i created a stored procedure to insert this record, and i have no issue when i execute the stored procedure. it insert the recored into the remote server.
The problem is when i call the stored procedure from trigger, i get an error message.
Stored Procedure: USE [DB1] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON
[Code] ....
When i try to insert a new description value in the table i got the following error message:
No row was updated the data in row 1 was not committed Error source .Net SqlClient Data provider. Error Message: the operation could not be performed because OLE DB provider "SQLNCLI10" for linked server "(null)" returned message "The partner transaction manager has disabled its support for remote/network transaction.".
correct the errors entry or press ESC to cancel the change(s).
Is it possible to create a trigger to monitor when a value changes from 1 to 0 in a particular row. Example, rows have names, pins and status columns. When the status column of a row changes from 1 to 0, I am going to send a mail item to the person whose name has had the status changed.
I am using SQL Server 2005 database for a webbased application built on .net 2.0. Here is my situation. I have a SubmitDate and a Status field in a table. I want the trigger to fire based on the datevalue in the SubmitDate field. SubmitDate field is the last date for the user to submit an application. For eg: if the SubmitDate value is 03/10/07 , I want the trigger to fire on :01 of 03/11/07 to change the Status field value to Inactive. Is that possible? Thoughts on how to do it?
I have a trigger on UPDATE on a table. I'm running some maintenanceUPDATE and DELETE queries which I want the trigger to ignore but at thesame time I want other UPDATE queries that other users might be runningto keep triggering the trigger. Is there a SET statement perhaps thatI could set before my query? Or a clause in the UPDATE statement?This is on MSSQL 2000 server, on Win2k3
 IF OBJECT_ID('dbo.AuditLog','U') IS NULL BEGIN CREATE TABLE [dbo].[AuditLog]
[code]....
[AuditLogId] [bigint] IDENTITY(1,1) NOT NULL, [DateCreated] [datetime] NOT NULL, [TableName] [nvarchar](200) NULL,
i have the Audit_log table and the trigger above on Account table..it is working fine and i have some 1000 records in Audit log table  , but it did not fire for some customers and i found trigger did not fire for 60 plus customers any possible reasons ??? that trigger did not fire ? Below are the timings account have been created but trigger did not log themÂ
Is there a way to fire a trigger when a particular user (with sql login) logs into sql server? We are planning to use the above trigger to start a job which inturn records some inf.
A job runs every morning at 3.00 am to back up a database. Many of the tables have triggers on to write updates, deletes and inserts to audit tables.A typical trigger looks like this.
USE [ProjectDB_Live] GO /****** Object: Trigger [dbo].[trgStakeHolders] Script Date: 03/02/2015 10:23:38 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON
[code]....
I added a trigger to a table over the weekend - structured the same as the one above and, when the back up ran last night, it copied every row in the table into the audit table as if every row in the table had been updated.
Hi.I need to make a trigger which fires when after an UPDATE is done ontable A in database X. The trigger must perform a statement whichcopies some of the data from the update to table B in database Y onthe same server.My question is: Can I access the data which caused the trigger to fireor just get an indication of which entry in table A had been updated?Best RegardsJens Christian Andersen.
I created a view that joins several tables together and added an instead of insert, update trigger on it. My trigger works when I do an update/insert directly to the view, but it doesn't seem to fire when an insert/update is made to any of the tables that the view is based on. Is there a way to have the trigger fire when something happens to the tables that the view is based on? The application that the database is using is something that was purchased so I don't have access to the code to change any SQL statements that it's using.
Hi. I am having a problem with a 2005 report that has two tables and is designed thru visual studio. The second table is set to page break before printing and also to repeater headers on new pages. It works fine just like that. However, if I place a condition on the visibilty of the table based on an input report parameter it does not page break before rendering the table. In fact it does not page break at all leaving me with an extremely long last page. The visiblity parameter does properly toggle. This is all occurring when rendering the report to the screen using the windows reportviewer. When I export to PDF it looks fine.
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
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.
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'
This Audit Trigger is Generic (i.e. non-"Table Specific") attach it to any tabel and it should work. Be sure and create the 'Audit' table first though.
The following code write audit entries to a Table called 'Audit' with columns 'ActionType' //varchar 'TableName' //varchar 'PK' //varchar 'FieldName' //varchar 'OldValue' //varchar 'NewValue' //varchar 'ChangeDateTime' //datetime 'ChangeBy' //varchar
using System; using System.Data; using System.Data.SqlClient; using Microsoft.SqlServer.Server;
public partial class Triggers { //A Generic Trigger for Insert, Update and Delete Actions on any Table [Microsoft.SqlServer.Server.SqlTrigger(Name = "AuditTrigger", Event = "FOR INSERT, UPDATE, DELETE")]
public static void AuditTrigger() { SqlTriggerContext tcontext = SqlContext.TriggerContext; //Trigger Context string TName; //Where we store the Altered Table's Name string User; //Where we will store the Database Username DataRow iRow; //DataRow to hold the inserted values DataRow dRow; //DataRow to how the deleted/overwritten values DataRow aRow; //Audit DataRow to build our Audit entry with string PKString; //Will temporarily store the Primary Key Column Names and Values here using (SqlConnection conn = new SqlConnection("context connection=true"))//Our Connection { conn.Open();//Open the Connection //Build the AuditAdapter and Mathcing Table SqlDataAdapter AuditAdapter = new SqlDataAdapter("SELECT * FROM Audit WHERE 1=0", conn); DataTable AuditTable = new DataTable(); AuditAdapter.FillSchema(AuditTable, SchemaType.Source); SqlCommandBuilder AuditCommandBuilder = new SqlCommandBuilder(AuditAdapter);//Populates the Insert command for us //Get the inserted values SqlDataAdapter Loader = new SqlDataAdapter("SELECT * from INSERTED", conn); DataTable inserted = new DataTable(); Loader.Fill(inserted); //Get the deleted and/or overwritten values Loader.SelectCommand.CommandText = "SELECT * from DELETED"; DataTable deleted = new DataTable(); Loader.Fill(deleted); //Retrieve the Name of the Table that currently has a lock from the executing command(i.e. the one that caused this trigger to fire) SqlCommand cmd = new SqlCommand("SELECT object_name(resource_associated_entity_id) FROM ys.dm_tran_locks WHERE request_session_id = @@spid and resource_type = 'OBJECT'", conn); TName = cmd.ExecuteScalar().ToString(); //Retrieve the UserName of the current Database User SqlCommand curUserCommand = new SqlCommand("SELECT system_user", conn); User = curUserCommand.ExecuteScalar().ToString(); //Adapted the following command from a T-SQL audit trigger by Nigel Rivett //http://www.nigelrivett.net/AuditTrailTrigger.html SqlDataAdapter PKTableAdapter = new SqlDataAdapter(@"SELECT c.COLUMN_NAME from INFORMATION_SCHEMA.TABLE_CONSTRAINTS pk , INFORMATION_SCHEMA.KEY_COLUMN_USAGE c where pk.TABLE_NAME = '" + TName + @"' and CONSTRAINT_TYPE = 'PRIMARY KEY' and c.TABLE_NAME = pk.TABLE_NAME and c.CONSTRAINT_NAME = pk.CONSTRAINT_NAME", conn); DataTable PKTable = new DataTable(); PKTableAdapter.Fill(PKTable);
switch (tcontext.TriggerAction)//Switch on the Action occuring on the Table { case TriggerAction.Update: iRow = inserted.Rows[0];//Get the inserted values in row form dRow = deleted.Rows[0];//Get the overwritten values in row form PKString = PKStringBuilder(PKTable, iRow);//the the Primary Keys and There values as a string foreach (DataColumn column in inserted.Columns)//Walk through all possible Table Columns { if (!iRow[column.Ordinal].Equals(dRow[column.Ordinal]))//If value changed { //Build an Audit Entry aRow = AuditTable.NewRow(); aRow["ActionType"] = "U";//U for Update aRow["TableName"] = TName; aRow["PK"] = PKString; aRow["FieldName"] = column.ColumnName; aRow["OldValue"] = dRow[column.Ordinal].ToString(); aRow["NewValue"] = iRow[column.Ordinal].ToString(); aRow["ChangeDateTime"] = DateTime.Now.ToString(); aRow["ChangedBy"] = User; AuditTable.Rows.InsertAt(aRow, 0);//Insert the entry } } break; case TriggerAction.Insert: iRow = inserted.Rows[0]; PKString = PKStringBuilder(PKTable, iRow); foreach (DataColumn column in inserted.Columns) { //Build an Audit Entry aRow = AuditTable.NewRow(); aRow["ActionType"] = "I";//I for Insert aRow["TableName"] = TName; aRow["PK"] = PKString; aRow["FieldName"] = column.ColumnName; aRow["OldValue"] = null; aRow["NewValue"] = iRow[column.Ordinal].ToString(); aRow["ChangeDateTime"] = DateTime.Now.ToString(); aRow["ChangedBy"] = User; AuditTable.Rows.InsertAt(aRow, 0);//Insert the Entry } break; case TriggerAction.Delete: dRow = deleted.Rows[0]; PKString = PKStringBuilder(PKTable, dRow); foreach (DataColumn column in inserted.Columns) { //Build and Audit Entry aRow = AuditTable.NewRow(); aRow["ActionType"] = "D";//D for Delete aRow["TableName"] = TName; aRow["PK"] = PKString; aRow["FieldName"] = column.ColumnName; aRow["OldValue"] = dRow[column.Ordinal].ToString(); aRow["NewValue"] = null; aRow["ChangeDateTime"] = DateTime.Now.ToString(); aRow["ChangedBy"] = User; AuditTable.Rows.InsertAt(aRow, 0);//Insert the Entry } break; default: //Do Nothing break; } AuditAdapter.Update(AuditTable);//Write all Audit Entries back to AuditTable conn.Close(); //Close the Connection } }
//Helper function that takes a Table of the Primary Key Column Names and the modified rows Values //and builds a string of the form "<PKColumn1Name=Value1>,PKColumn2Name=Value2>,......" public static string PKStringBuilder(DataTable primaryKeysTable, DataRow valuesDataRow) { string temp = String.Empty; foreach (DataRow kColumn in primaryKeysTable.Rows)//for all Primary Keys of the Table that is being changed { temp = String.Concat(temp, String.Concat("<", kColumn[0].ToString(), "=", valuesDataRow[kColumn[0].ToString)].ToString(), ">,")); } return temp; } }
The trick was getting the Table Name and the Primary Key Columns. I hope this code is found useful.
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.
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)
This is probably a stupid question, but here goes: I am trying toupdate a table differently based on what is in one of the columnswithin the table. For example, I want to set Fld1 to be "On" if Fld2is "A", and I want to set Fld1 to be "Off" if Fld2 is "B". This iseasy to do in two SQL statements, but I was wondering if there's someway to do it in a single SQL statement. Thus far, I have had no luckin figuring out how to do this. Any ideas would be appreciated!!
I need some help aggregating values in a single table, where neither a simple Sum() nor a simple First() function will do... Would like to do Sum(First()) but that's not allowed!
Sample dataset (select * from cs_view):
Gender | Program | Student | Class_Section | Heads | Credits ------ | ------- | ------- | ------------- | ----- | ------- Female | English | Elena | Phys 101-b | 1 | 4 Female | English | Elena | Hist 101-c | 1 | 4 Female | English | Elena | Engl 101-a | 1 | 4 Female | English | Elena | Engl 105-b | 1 | 4 Male | History | Rich | Phys 105-a | 1 | 4 Male | History | Rich | Engl 101-c | 1 | 4 Male | History | Rich | Hist 101-b | 1 | 4 Male | History | Jacob | Phys 101-a | 1 | 4 Male | History | Jacob | Hist 101-b | 1 | 4 Male | History | Jacob | Engl 101-c | 1 | 4 Male | History | Jacob | Phys L-101-a | 1 | 0
Dataset has one row per student enrollment in class section. No trouble summing credits by student or by program (or gender). HOWEVER, aggregate head-count should add each student only once.
Desired table: Gender Program Heads Credits ------ ------- ----- ------- Female English 1 16 Male History 2 24 - --- 3 40If I add a third grouping level, that is, add a student-level grouping to the desired table, First(Fields!Heads.Value) will return the correct student-level head count; however, I don't know how to sum up the student-level group header rows ('subtotal' rows), to aggregate head count by gender or by program.
I think this may be an increadibly simple one, but it's been driving me up the wall. I have a dataset that contains some summary information about a group of companies which i'd like to represent in a report. The dataset looks like this:
I can't figure out how to select a specific field from the dataset (e.g. Company = Company1 and Lead_Type = Internal). This sort of thing must be done all the time, I'm sure I'm missing something fairly obvious. Any posts back gratefully received.
I'm pararmeterizing a SQLDataSource, but I've encountered a problem. The users want all records returned if no ID is provided. So when they first hit the page, they will see all records, then they can filter down to one ID if needed. However, if I add a selectparameter of ID, I have to default it to a value, which won't give the users all records. Suggestions?
I have conditionially visible groups that are show/hide based on a report parameter. The problem is that I also want to have a document label on this group. When the group is hidden a blank entry appears in the doument map rather that no entry at all. Is this a bug or is there some work around. Thanks.
