My current situation is I have an application currently using windows authentication developed mostly in classic asp with a few .net 1.x files mixed in.
The sql database uses hundreds of triggers to track user actions in nearly 40 tables:
- table trigger recognizes that an update/insert is occurring, calls a user function that returns the user id (by using system_user), and along with the update/insert the user id and current date time are saved to the record.
This is fine under windows authentication, but we're planning on integrating this application with several others under the same domain using forms authentication. My connection string for forms has everyone connecting to the database using a single login. Permissions, otherwise, are handled at the page level. I obviously have no plans of storing the password in some form of session variable. Consequently, under forms authentication, the database will be recognize everyone as the same person.
Maybe I'm just missing the obvious solution, so what are your thoughts on a solution for this?
This isn€™t an problem as such, it€™s more of a debate.
If a table needs a number of update triggers which do differing tasks, should these triggers be separated out or encapsulated into one all encompassing trigger. Speaking in terms of performance, it doesn€™t make much of an improvement doing either depending upon the tasks performed. I was wondering in terms of maintenance and best practice etc. My view is that if the triggers do totally differing tasks they should be a trigger each on their own.
I try to use trigger to see if Component table update at same time update the AssemblySubcomponent AssemblyID
but it say
Msg 4104, Level 16, State 1, Procedure trigupdateSubcomponentID, Line 6 The multi-part identifier "a.SubcomponentID" could not be bound.
the code look like
create trigger trigupdateAssemblyID on Component for update, insert as begin if update (ComponentID) update AssemblySubcomponent set a.AssemblyID= i.ComponentD from inserted i join AssemblySubcomponent a on a.AssemblyID =i.ComponentID
How do I set up an insert trigger to copy all of the inserted data to another table? In other words, when someone adds a new paramater in the params table, I want to automatically create a matching set of data in the goals table. Thanks,Krista
I have a question about a table with triggers or maybe a check constraint.I have the following create tables:
create table bid( seller char(10) not null, item_nummer numeric(3) not null, )
create table Item( startprice char(5) not null, description char(22) not null, start_date char(10) not null, end_date char(10) not null, seller char(10) not null, item_nummer numeric(3) not null, )
What i'm trying to make is this trigger/constraint: colomn "seller" from table Item will get NULL as long as systemdate is > start_date and end_date, then it will get the value from seller from table bid on the same item_nummer in both table).
Hi i have a view that contain multiple tables from my database and i want to view it on datagridview and update it's data some people says you can update joined tables using instead of triggers how is that ?is there any example ?
I've imported data from an Excel spreadsheet to a table that has fields to match the destination table I'm trying to populate. The destination table has an Insert trigger with several checks on certain fields to make sure they have corresponding records in other tables.
If I do a statement like "INSERT INTO destinationTable ( ItemId, Product, SuperID, etc etc ) SELECT * FROM oldtable" it runs for a while then gives me error messages from the trigger and rolls back the Insert.
The trigger has code such as "IF (SELECT COUNT(*) FROM inserted WHERE ((inserted.Product Is Not Null))) != (SELECT COUNT(*) FROM tblInProduct, inserted WHERE (tblInProduct.Product = inserted.Product)) BEGIN (Error message code goes here) END"
So, do I need to do an INNER JOIN to each of the related files? When I try that, I get this error: "Msg 121, Level 15, State 1, Line 2 The select list for the INSERT statement contains more items than the insert list. The number of SELECT values must match the number of INSERT columns." Is SQL counting the foreign key fields as separate fields, or what?
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.
I want to be able to duplicate every single record that is inserted or updated in a particular table to another table, but not the delete. Is the best way to set-up a trigger? If so can anyone provide me with an example of how to do this? Also could you just duplicate certain columns in the row I would you have to do all columns?
I was hoping for some information regarding table triggers. We have databases that are part of an AlwaysOn availability group on SQL Server 2012. Some of the tables have table triggers defined. There are both types of triggers, INSTEAD OF and AFTER INSERT, etc.
From my understanding of how secondary read-only replicas work, I am assuming that these triggers have no impact at all when the database is a read-only secondary replica and they only fire when the database is the primary read-write database.
However, after doing a search on the internet, I have not been able to find a definitive source of information.
I would like to ensure data integrity in a column (actually multiple columns will need a trigger) in my table(s) by setting up a trigger which allows an update of my database field only if the value which is being written to the field in the database exists in another column (in another "check" table).eg. I only want values "Yes", "No" or "" in many of my fields, which I store in a column named "YesNoBlank" in another table.Does anyone know the easy way to do this? / Syntax for the trigger?
Hello everyone,I am involved in a scenario where there is a huge (SQL Server 2005)production database containing tables that are updated multiple timesper second. End-user reports need to be generated against the data inthis database, and so the powers-that-be came to the conclusion that areporting database is necessary in order to offload report processingfrom production; of course, this means that data will have to bereplicated to the reporting database. However, we do not need all ofthe data in the production database, and perhaps a filtering criteriacan be established where only certain rows are replicated over to thereporting database as they're inserted (and possibly updated/deleted).The current though process is that the programmers designing thequeries/reports will know exactly what data they need from productionand be able to modify the replication criteria as needed. For example,programmer A might write a report where the data he needs can beexpressed in a simple replication criteria for table T where column X= "WOOD" and column Y = "MAHOGANY". Programmer B might come along amonth later and write a report whose relies on the same table T wherecolumn X = "METAL" and column Z in (12, 24, 36). Programmer B willhave to modify Programmer A's replication criteria in such a way as toaccomodate both reports, in this case something like "Copy rows fromtable T where (col X = "WOOD" and col Y = "MAHOGANY") or (col X ="METAL" and col Z in (12, 24, 36))". The example I gave is reallytrivial of course but is sufficient to give you an idea of what thecurrent thought-process is.I assume that this is a requirement that many of you may haveencountered in the past and I am wondering what solutions you wereable to come up with. Personally, I believe that the above method isprone to error (in this case the use of triggers to specifyreplication criteria) and I'd much rather use replication services tocopy tables in their entirety. However, this does not seem to be anoption in my case due to the sheer size of certain tables. Is thereanything out there that performs replication based on complexprogrammer defined criteria? Are triggers a viable alternative? Anyalternative out-of-the-box solutions?Any feedback would be appreciated.Regards!Anthony
Is it possible to achieve this using triggers:When someone tries to delete a row in table A, the trigger should first delete a corresponding row in table B and then delete the row in table A. The reason being that, there is a foreign key set on Table B that references table A. So any attempt to delete a row in table A without deleting the corresponding row from B, throws an error.
Hello All, I have to write Trigger for Update, I have two tables, one is for storing records of current values, and one is for storing history of values. How to Write a Trigger on Main Table. As we have Inserted and Deleted Tables through which we can find Values, We dont have any Table for UPDATED Values. Help me. General Problem
I need to create a set of rows every time a new row is inserted into a table. Example (I think this would work)... select @insertedId = column1 from insertedselect @id = column1 from table1 where column2 in (select column1 from table2 where column2 = @insertedId)insert into table3 values(x, y, @id) Is it possible to do the same kind of thing in a situation where the select statement returns multiple values and execute the insert statement for each of these values? Also, if table3 was in fact the table on which the trigger acts, would it then be executed for every row created by the trigger? Sorry if I sound confused. I am.
hi everybody..i tried to put thios loop in sql server 2000 But it is not taking The @ action taken value ,,it is only taking the default value of @actiontaken value. SET @ActionTaken = 'A' IF (@AType = 'A')IF @Status= 'O' IF (@KAppInd ='Y' AND @DAppInd=null)BEGINSET @ActionTaken = 'O'END
Please tell me other option in sql server 2000 for setting variable value based on conditions
Hi using triggers i try to insert some values in to my 2 tables: But its showing teh error as "The request for procedure 'Triginsert123s' failed because 'Triginsert123s' is a trigger object." This is my code in back end: sqlcon.Open() Dim cmd As New SqlCommand("Triginsert123s '" & txtID.Text & "','" & txtName.Text & "','" & txtRole.Text & "','" & txtDep.Text & "'", sqlcon) cmd.ExecuteNonQuery() sqlcon.Close() My trigger is: CREATE TRIGGER Triginsert123s ON [dbo].[EmpRole] FOR INSERT AS declare @Eid as tinyint, @Ename as varchar(50), @Role as char(10) Insert into Emprole(Eid,Ename,Role) values(@Eid,@Ename,@Role) insert into empdep(eid,dep) values(@eid,@Role) Whats the probs?, Plz i am new to triggers help me,
Hi All, I'm using triggers to handle my transaction log to cature inserts and updates. It works fine except if the user clicks on the Save button more than once, the trigger is fired and the record is written to the log even if the record wasn't changed. Does anyone know how to check if the record was actually changed so that it isn't written to the table if it wasn't?
When I execute a stored proc from my asp.net page, will the results of a trigger be returned to my program?
For instance say my stored proc is:
Update Employees set (Lastname = @Lastname) where ID = @ID
And my trigger is:
CREATE TRIGGER tr_Employees_U on Employees FOR UPDATE AS IF UPDATE(lastname) BEGIN RAISERROR ('cannot change lastname', 16, 1) ROLLBACK TRAN RETURN END GO
It seems like since this is an AFTER trigger that my webpage would actually get a valid return code from my stored procedure however the trigger would rollback those changes correct? Or would the trigger get fired and send it's return code to my webpage?
I'm trying to write an instead of trigger for a view in SqlExpress...the table and views are defined as such:CREATE TABLE [dbo].[Work]( [WorkID] [int] IDENTITY(1,1) Primary Key, [ResourceID] [int] NOT NULL, [TaskID] [int] NOT NULL, [WorkDate] [datetime] NOT NULL, [WorkQuantity] [float] NOT NULL, [IsEstimate] [bit] NOT NULL DEFAULT ((0)), [Project] [int] NOT NULL,);CREATE VIEW [dbo].[ActualWork]ASSELECT WorkID, ResourceID, TaskID, WorkDate, WorkQuantity, ProjectFROM dbo.[Work]WHERE (IsEstimate = 0);CREATE VIEW [dbo].[EstimatedWork]ASSELECT WorkID, ResourceID, TaskID, WorkDate, WorkQuantity, ProjectFROM dbo.[Work]WHERE (IsEstimate = 1);Given that, what is wrong with the following create trigger statement:Create Trigger trg_InsertActualWork ondbo.ActualWork Instead of InsertasBEGIN Insert into dbo.Work( ResourceID, TaskID, Project, WorkDate, WorkQuantity, IsEstimate ) values ( inserted.ResourceID, inserted.TaskID, inserted.Project, inserted.WorkDate, inserted.WorkQuantity, 0 );END
l'm trying to build a trigger on a table. The reason for the trigger is to check a certain field for the first three characters if it has ie abc it must update another field in this case loanbook to newabc.How do l write the trigger so that it also check if exists and perform the updates. Please help its Urgent. l've listed the trigger below.
CREATE TRIGGER UpdTest_TRGData ON Test_TRG FOR insert,Update AS
IF left('Loan_No',3)='ABC' update Test_TRG set loanbook = 'NEWABC'
else
IF left('Loan_No',3)='DEF' update Test_TRG set loanbook = 'NEWDEF' where loanbook is null
else
update Test_TRG set loanbook =left('Loan_No',3) where loanbook is null
I'm a bit confused on this bit please elaborate : " FROM Test_TRG t INNER JOIN inserted i ON t.PK = i.PK ". The PK is on which field? Basically this trigger should ensure that on insertion of o new loan if The left(loan_no,3)=MCG and its null then NEWMCG left(loan_no,3)=MCG and its null then NEWMCG left(loan_no,3)=KVS and its null then NEWKVS left(loan_no,3)=MFS and its null then MFS left(loan_no,3)=TCR and its null then TCR left(loan_no,3)=ABL and its null then ABL
Listed below is what l've tried to do but l'm missing the PK part.Otherwise everything else you explained in the script is clear. Thanks man its urgent. When l parse the query its fine , but When l run it l get an error.
CREATE TRIGGER UpdTest_TRGData ON Test_TRG FOR INSERT, UPDATE AS
UPDATE Test_TRG SET LoanBook = CASE WHEN LEFT( i.Loan_No, 3 ) = 'MCG' THEN 'NewMCG' WHEN LEFT( i.Loan_No, 3 ) = 'KVS' AND i.LoanBook IS NULL THEN 'NewKVS' WHEN LEFT( i.Loan_No, 3 ) = 'MFS' AND i.LoanBook IS NULL THEN 'MFS' WHEN LEFT( i.Loan_No, 3 ) = 'ABL' AND i.LoanBook IS NULL THEN 'ABL'
WHEN i.LoanBook IS NULL THEN LEFT( i.Loan_No, 3 ) END FROM Test_TRG t INNER JOIN inserted i ON t.PK = i.PK -- Fill in Primary Key or other Join Column(s) WHERE LEFT( i.Loan_No, 3 ) = 'MCG' OR ( LEFT( i.Loan_No, 3 ) = 'KVS' AND i.LoanBook IS NULL ) OR i.LoanBook IS NULL
====== Error message =================
Server: Msg 207, Level 16, State 3, Procedure UpdTest_TRGData, Line 11 Invalid column name 'PK'. Server: Msg 207, Level 16, State 1, Procedure UpdTest_TRGData, Line 11 Invalid column name 'PK'.
I an loading records from a flat file into a table, which is done everyday by a scheduled job in SQL Server 7.0.
How can I make sure that if the job is run twice in a day for some reason that the same rows are not inserted into the table again? Do I have to write a insert trigger on the table ??? If so how can I achive the objective ??
I'm working on trying to figure out how to update the child table from the parent via a trigger. This works fine as long as the value is in the child table. If it's not, then I get my foreign key violation. So, My next thought was to simply put in a begin tran / rollback tran within the trigger... My question is this : If I have multiple triggers on the parent table all based on the update of the key field (and the child tables... some 7 of them) all have FK's, if I rollback one trigger does it rollback the entire transaction? Or just the functionality of that trigger? From what I've read, it appears as if it's the entire transaction... if so, how do I get a trigger to 'ignore' itself or not fire based on a select criteria that i have within that same trigger...
I just tried creating my first trigger and I'm a little bit confused. I am trying to see if certain fields have changed and will do that by checking the values of the fields in the "master" table and the "Inserted" table. I wasn't sure which table would have the old data and which would have the new, so I created the following trigger to help me determine which was which:
CREATE Trigger upd_cost_master On tbl_cost_master For Insert, Update As
To my surprise, @U_Name and @O_Name contained the same values. I though that one table contained the old values and one contained the new. Was I wrong? If so, is there anyway to compare the Old and New values through a trigger?
I'm using SQL Server 7.0. I have an insert trigger on table t05r. I populate table t05r with a DTS package. The trigger is supposed to add the record which was inserted into t05r, into t39r. After I run the DTS package to populate t05r, I checked t39r and no records where added. What is going wrong? Is it that DTS uses bulk copy and triggers don't fire on bulk copy?
