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
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 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?
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 am trying to understand how to use instead of trigger using an update.
Here are a few things that I need clarified.
- When using an 'instead of Update' trigger is this replacing any other Update that is happening to the Table.
- Or, is the occurence of the trigger happening after the update?
- Also, I have seen some syntax where people use: Update table set field1 = inserted.field1 from deleted, inserted, table where deleted.field1 = ....
Does this mean that when using the 'instead of' option it keeps track of what is being deleted and what is being inserted by using such things as deleted.field1 or inserted.field1?
What I need to do is check that the previous value in a particular field is null before updating it. I don't want to update a particular field that already contains a value in it.
What would be the best way to handle different updates for a table, multiple triggers, or just one large triggger? I am not worried about their order of firing, just that they fire
If I have a trigger on a field in a table, and I update one record trigger fire properly. If I do a update to that same field on all records in the table the trigger does not fire. I the error in the trigger, or do I need to change my update statement?
I would like to update foreign keys using triggers. At least thats what I think is the solution when having multiple references to a table in order to avoid the "cycles or multiple cascade paths" error message.
Anyway, here are three tables Dentist table dentist_id int identity (auto increment)
Patient table: patient_id int identity (auto increment)
Appointment: apointment_id int identity (auto increment) id_dentist int FK to dentist_id id_patient int FK to patient_id
I am gooling but cant find a way to make a trigger run only when the dentist_id from dentist table is updated. Also, is there a way to get the new id and old id somehow? I saw some posts with new.dentist_id and old.dentist_id but apparently is not for sql server.
SQL Server 2000 : I have a series of tables which all have the samestructure. When any of these tables are modified I need to syncrhoniseall of those modifications with one other table wich is a sort of mergeof the individual tables with one extra column.For most of these tables this is not a problem. The problem arriveswhen one of the tables has an ntext column which obviously can not beused in an update or insert trigger.Here's an example of one of them:CREATE TABLE tblImages(ID INT IDENTITY(1,1) PRIMARY KEY,Inventory nvarchar(8) NOT NULL,Coll nvarchar(8) NOT NULL,ImageFile nvarchar(128) NOT NULL,ImageNotes ntext NULL,TS timestamp NULLCONSTRAINT U_Images UNIQUE NONCLUSTERED (ItemCode, Inventory, Coll,ImageFile)I then had created an update trigger which looked like this:CREATE TRIGGER COLLNAME_UTRIGGER ON COLLNAME_ImagesFOR UPDATEASBEGINUPDATE tblImages SETInventory = inserted.Inventory,Coll = 'COLLNAME',ImageFile = inserted.ImageFileName,FROM inserted INNER JOIN tblImages ON inserted.ItemCode =tblImages.ItemCode ANDinserted.Invventory = tblImages.Invventory AND tblImages.Coll ='COLLNAME' ANDinserted.ImageFileName = tblImages.ImageFileUPDATE tblImagesSET ImageNotes=inserted.NotesFROM inserted INNER JOIN tblImages ON inserted.ItemCode =tblImages.ItemCode ANDinserted.Inventory= tblImages.Inventory AND tblImages.Coll ='COLLNAME' ANDinserted.ImageFileName = tblImages.ImageFileEND " & vbCrLf)The first update in my trigger, be it an update or insert trigger,works fine. It crashes with the "Cannot use text, ntext or imagecolumns in the 'inserted' or 'deleted' tables." error in the secondpart.I have read various messages through the Internet on this and severalof them reference using INSTEAD OF triggers and views. I have neverused those before as this is my first work with SQL 2000. None of theexamples of INSTEAD OF triggers I have seen yet use the actual insertedtables and I haven't quite understood how to use them correctly.Can someone help me with the basic syntax as this trigger is one ofseveral that I am going to have to get working.Thank you in advance for any help, assistance, suggestions or"direction pointing" you may provide.
Hi There are 2 databases db1 and db2 on SQL server 7 with tables 1 and 2 respectively. Both these tables have a field called Quantity. IF quantity gets updated in table 1 then that change should be immediately reflected in table2. I though an update on table1 would serve the purpose but this trigger doesn't seem to be working however there are no errors during the syntax check. The code for the trigger that i have used on table 1 is as below CREATE TRIGGER [Qty_UPDATE] ON [Table1] FOR UPDATE AS IF UPDATE (Qty) BEGIN UPDATE db2.dbo.table2 SET db2.dbo.table2.qty = qty END Please help Thanks in advance
I have a table which when certain columns are updated, need a trigger to fire to update a next schedule date in that same table for that record. I can write the trigger, but my question for performance and efficiency is which approach would be better. Separate triggers fo the 8 columns, or a large trigger with an If to check if these columns are updated. Thanks
am using FOR UPDATE triggers to audit a table that has 67 fields. Myproblem is that this slows down the system significantly. I havenarrowed down the problem to the size (Lines of code) that need to becompiled after the trigger has been fired. There is about 67 IFUpdate(fieldName) inside the trigger and a not very complex selectstatement inside the if followed by an insert to the audit table. WhenI leave only a few IF-s in the trigger and comment the rest of thecode performance increased dramatically. It seems like it is checkingevery single UPdate() statement. Assuming that this was slowing downdue to doing a select for every update i tried to do to seperateselects in the beginning from Deleted and Inserted and assigningcolumns name to specific variables and instead of doingif Update(fieldName) i didif @DelFieldName <> @InsFieldNamebeginINSERT INTO AUDITSELECT WHAT I NEEDENDThis did not improve performance. If you have any ideas on how to getaround this issue please let me know.Below is an example of what my triggers look like.------------------------------------Trigger 1 -- this was my original designCREATE trigger1 on TableFOR UPDATEASif update(field1)begininsert into AuditSELECT What I needENDif update(field2)begininsert into AuditSELECT What I needEND...... Repeated about 65 more timesif update(field67)insert into AuditSELECT What I needEND---------------------------------------------------------------------------Trigger 2 -- this is what i tried but did not improve performanceCREATE trigger2 on TableFOR UPDATEASDeclare @DelField1 varcharDeclare @DelField2 varchar....Declare @DelField67 varcharSelect@DelField1 = Field1,@DelField2 = Field2,....@DelField67 = Field67From DeletedDeclare @InsField1 varcharDeclare @InsField2 varchar....Declare @InsField67 varcharSelect@insField1 = Field1,@insField2 = Field2,....@InsField67 = Field67From Inserted-- I do not do if Update() but instead compare variablesif @DelField1 <> InsField1beginInsert into AUDITSELECT what I needendif @DelField2 <> InsField2beginInsert into AUDITSELECT what I needend............if @DelField67 <> InsField67beginInsert into AUDITSELECT what I needend----------------------------------------------IF you have any idea how to optimize this please let me know. Anyinput is greatly appreciated. I do not have a problem with triggersdoing what they are supposed to, they are very slow this is myconcern. The reason I gave you two examples is because i suspect ithas something to do with the enormouse amount of code inside thetrigger. both examples perform about the same whether i use the twohuge selects from the Inserted and Deleted or not.Thanks,Gent
on insert in a new table a have to change one column before insert.
I wrote this trigger:
create trigger SUBSCR_ID_TRANSFER ON dbo.SalesOrderExtensionBase AFTER INSERTAS BEGIN SET NOCOUNT ON;DECLARE @OpportunityID uniqueidentifier;DECLARE @subscrId uniqueidentifier;declare @salesorderid uniqueidentifier;set @salesorderid = (select SalesorderID from inserted)SET @OpportunityID = (SELECT OpportunityId FROM SalesOrderBase where SalesOrderID=@salesorderid)SET @subscrId = (SELECT New_old_subscridId from OpportunityExtensionbase where OpportunityID=@OpportunityID)Update inserted set New_old_subscridId = @subscrIdENDbut SQL Rise the error "The inserted values can not be modified"
I recently moved a database from a SQL server 2005 box to new server running SQL server 2012. The update/insert triggers that were working on the tables to handle referential integrity checking are no longer working. Running the same database on SQL Server 2008 and everything works.
Here is one of the trigger that throws the error 44446
USE [M2Data] GO /****** Object:Â Trigger [dbo].[tblContacts_UTrig]Â Â Â Script Date: 3/11/2014 9:07:13 AM ******/ SET ANSI_NULLS ON
[code]....
I have verified that there is a matching key in tblCompanys. Also, when I run a query to update tblContacts the error message appears but the update does take. If I try and edit the row directly by selecting edit top 200 rows - the error message appears and the update does NOT take.
These triggers were probably added to the database during an upsize from MS Access to SQL Server 7 way back. What am I missing - is it something in the syntax?
Hi,I have table with three columns as belowtable name:expNo(int) name(char) refno(int)I have data as belowNo name refno1 a2 b3 cI need to update the refno with no values I write a query as belowupdate exp set refno=(select no from exp)when i run the query i got error asSubquery returned more than 1 value. This is not permitted when thesubquery follows =, !=, <, <= , >, >= or when the subquery is used asan expression.I need to update one colum with other column value.What is the correct query for this ?Thanks,Mani
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?
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).
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'm working on inserting data into a table in a database. The table has two separate triggers, one for insert and one for update (I don't like it this way, but that's how it's been for years). When there is a normal insert, done via a program, it looks like the triggers work fine. When I run an insert manually via a script, the first insert trigger will run, but the update trigger will fail. I narrowed down the issue to a root cause.
This root issue is due to both triggers using the same temporary table name. When the second trigger runs, there's an error stating that a few columns don't exist. I went to my test server and test db and changed the update trigger so that the temporary table is different than the insert trigger temporary table, the triggers work fine. The weird thing is that if the temporary table already exists, when the second trigger tries to create the temporary table, I would expect it to fail and say that it already exists.I'm probably just going to update the trigger tonight and change the temporary table name.
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.
Hi SQL fans,I realized that I often encounter the same situation in a relationdatabase context, where I really don't know what to do. Here is anexample, where I have 2 tables as follow:__________________________________________ | PortfolioTitle|| Portfolio |+----------------------------------------++-----------------------------+ | tfolio_id (int)|| folio_id (int) |<<-PK----FK--| tfolio_idfolio (int)|| folio_name (varchar) | | tfolio_idtitle (int)|--FK----PK->>[ Titles]+-----------------------------+ | tfolio_weight(decimal(6,5)) |+-----------------------------------------+Note that I also have a "Titles" tables (hence the tfolio_idtitlelink).My problem is : When I update a portfolio, I must update all theassociated titles in it. That means that titles can be either removedfrom the portfolio (a folio does not support the title anymore), addedto it (a new title is supported by the folio) or simply updated (atitle stays in the portfolio, but has its weight changed)For example, if the portfolio #2 would contain :[ PortfolioTitle ]id | idFolio | idTitre | poids1 2 1 102 2 2 203 2 3 30and I must update the PortfolioTitle based on these values :idFolio | idTitre | poids2 2 202 3 352 4 40then I should1 ) remove the title #1 from the folio by deleting its entry in thePortfolioTitle table2 ) update the title #2 (weight from 30 to 35)3 ) add the title #4 to the folioFor now, the only way I've found to do this is delete all the entriesof the related folio (e.g.: DELETE TitrePortefeuille WHERE idFolio =2), and then insert new values for each entry based on the new givenvalues.Is there a way to better manage this by detecting which value has to beinserted/updated/deleted?And this applies to many situation :(If you need other examples, I can give you.thanks a lot!ibiza
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?
I have a table where table row gets updated multiple times(each column will be filled) based on telephone call in data.  Initially, I have implemented after insert trigger on ROW level thinking that the whole row is inserted into table will all column values at a time. But the issue is all columns are values are not filled at once, but observed that while telephone call in data, there are multiple updates to the row (i.e multiple updates in the sense - column data in row is updated step by step),
I thought to implement after update trigger , but when it comes to the performance will be decreased for each and every hit while row update.
I need to implement after update trigger that should be fired on column level instead of Row level to improve the performance?
I'm looking for a query that can "batch" update one table from another. For example, say there are fields on both tables like this: KeyField Value1 Value2 Value3 The two tables will match on "KeyField". I would like to write one SQL query that will update the "Value" fields in Table1 with the data from Table2 when there is a match.
