Trigger To Update Field From Rows
Feb 21, 2013
I'm tracking sales reps and the companies they represent. I have 2 tables. A header table that has the SalesRep (a key field) the name, phone, address, etc.A line file that will have the sales rep multiple times, each line having a vendor they represent.
SalesRepHeader table:
SalesRep name phone VendorList
Bob Bob_Smith 111-222-3333
John John_Young 123-456-56789
Mary Mary_Kerns 567-876-98765
[code]...
Whenever the SalesRepLine file is added to or updated I want the header file field VendorList to be updated with a concat of the vendors for this sales rep so the SalesRepHeader file would look like this.
SalesRep name phone VendorList
Bob Bob_Smith 111-222-3333 Samsung, Kenwood, JVC
John John_Young 123-456-56789 Apple, HP
I need the update to be automatic.
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Nov 11, 2013
I want to update a field with a trigger only if a specific field is updated.
When I try the code below, it updates the field when any field in the record is updated. Is there a way to only make look at picked_dt?
ALTER TRIGGER [dbo].[UpdatePickedDate]
on [dbo].[oeordlin_sql]
after update
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
[Code] .....
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Aug 2, 2007
Hi -
I know my way around VS but I am just exploring "advanced" SQL Server 2005 and have run into a challenge which I think a trigger could solve, but I am not sure and also don't know how to set that up. So any help or links to tutorials are highly appreciated.
Here is the challenge: I have a table with a number of fields, among them RequestID (bigint) and Booktime (datetime). What I would like to happen is whenever someone writes a value different from NULL into RequestID, Booktime gets set to the current timestamp. When RequestID gets set to NULL, Booktime gets set to NULL.
Is there a way to do this with a trigger (or an otherwise elegant way)?
Thanks in advance for ANY help or ideas.
Oliver
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Aug 17, 2004
The Trigger must verify one field for eveery row updated and roll back any incorrect ones. I have tried different ways but I can't figure out how to make it work.
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Aug 14, 2006
Dear Experts,I'm an Oracle guy, who is being given more SQL Server assignmentslately.I've been looking for things on the web about this, but I can'tanything so far.In Oracle, I you can create a trigger on a table that -only- fires ifcertain fields are updated.create or replace trigger trg_some_triggerBEFORE insertOF some_field1, some_field2on tbl_some_tablefor each row....Is this also possible in SQL Server?What is the syntax please?Thanks a lot!
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Aug 28, 2007
I want to create a trigger that, when a field is updated or a record is inserted, counts the number of words in "field1", inserting this numeric value into another field in the same table. What would be the most efficient, fastest method for doing this?
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Jul 17, 2007
Hello,
Anyone know how to create an update trigger where the primary key isn't fixed.
If the primary key change how can I tie together the Deleted and Inserted tables if more than one row is updated?
/Patrik
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Dec 12, 2014
I run the following statement and it will not update beyond 7 million plus rows and I have about 38 million to complete. I keep checking updated row counts and after 1/2 day it's still the same so I know something is wrong because it was rolling through no problem when I initiated it. I need to complete ASAP so it's adding to my frustration. The 'Acct_Num_CH' field is an encrypted field (fyi).
SET rowcount 10000
UPDATE [dbo].[CC_Info_T]
SET [Acct_Num_CH] = 'ayIWt6C8sgimC6t61EJ9d8BB3+bfIZ8v'
WHERE [Acct_Num_CH] IS NOT NULL
WHILE @@ROWCOUNT > 0
BEGIN
SET rowcount 10000
UPDATE [dbo].[CC_Info_T]
SET [Acct_Num_CH] = 'ayIWt6C8sgimC6t61EJ9d8BB3+bfIZ8v'
WHERE [Acct_Num_CH] IS NOT NULL
END
SET rowcount 0
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Mar 12, 2007
I had created a trigger which sees that whether a database is updated if it is its copy the values of the updated row into another control table now I want to read the content of control_table into BIzTalk and after reading I want to delete it.Can any one suggest the suitable ay to do this?
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Jul 24, 2015
I have a SQL script to insert data into a table as below:
INSERT into [SRV1INS2].BB.dbo.Agents2
select * from [SRV2INS14].DD.dbo.Agents
I just want to set a Trigger on Agents2 Table, which could delete all rows in the table , before carry out any Insert operation using above statement.I had below Table Trigger on [SRV1INS2].BB.dbo.Agents2 Table as below: But it did not perform what I intend to do.
USE [BB]
GO
/****** Object: Trigger Script Date: 24/07/2015 3:41:38 PM ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
[code]....
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Jul 20, 2005
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'
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Jan 3, 2005
hi!
I have a big problem. If anyone can help.
I want to retrieve the last update time of database. Whenever any update or delete or insert happend to my database i want to store and retrieve that time.
I know one way is that i have to make a table that will store the datetime field and system trigger / trigger that can update this field record whenever any update insert or deletion occur in database.
But i don't know exactly how to do the coding for this?
Is there any other way to do this?
can DBCC help to retrieve this info?
Please advise me how to do this.
Thanks in advance.
Vaibhav
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Jul 8, 2015
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?
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May 30, 2008
Hi,
I am not sure if this is the right forum to post this question.
I run an update statement like "Update mytable set status='S' " on the SQL 2005 management Studio.
When I run "select * from mytable" for a few seconds all status = "S". After a few seconds all status turn to "H".
This is a behaviour when you have an update trigger for the table. But I don't see any triggers under this table.
What else would cause the database automatically change my update?
Could there be any other place I should look for an update trigger on this table?
Thanks,
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Apr 16, 2015
If I have a table with 1 or more Nullable fields and I want to make sure that when an INSERT or UPDATE occurs and one or more of these fields are left to NULL either explicitly or implicitly is there I can set these to non-null values without interfering with the INSERT or UPDATE in as far as the other fields in the table?
EXAMPLE:
CREATE TABLE dbo.MYTABLE(
ID NUMERIC(18,0) IDENTITY(1,1) NOT NULL,
FirstName VARCHAR(50) NULL,
LastName VARCHAR(50) NULL,
[Code] ....
If an INSERT looks like any of the following what can I do to change the NULL being assigned to DateAdded to a real date, preferable the value of GetDate() at the time of the insert? I've heard of INSTEAD of Triggers but I'm not trying tto over rise the entire INSERT or update just the on (maybe 2) fields that are being left as null or explicitly set to null. The same would apply for any UPDATE where DateModified is not specified or explicitly set to NULL. I would want to change it so that DateModified is not null on any UPDATE.
INSERT INTO dbo.MYTABLE( FirstName, LastName, DateAdded)
VALUES('John','Smith',NULL)
INSERT INTO dbo.MYTABLE( FirstName, LastName)
VALUES('John','Smith')
INSERT INTO dbo.MYTABLE( FirstName, LastName, DateAdded)
SELECT FirstName, LastName, NULL
FROM MYOTHERTABLE
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Feb 15, 2008
Hello
I've to write an trigger for the following action
When a entry is done in the table Adoscat79 having in the index field Statut_tiers the valeur 1 and a date in data_cloture for a customer xyz
all the entries in the same table where the no_tiers is the same as the one entered (many entriers) should have those both field updated
statut_tiers to 1
and date_cloture to the same date as entered
the same action has to be done when an update is done and the valeur is set to 1 for the statut_tiers and a date entered in the field date_clture
thank you for your help
I've never done a trigger before
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Mar 30, 2004
Hi all,
I have a problem about a query to update a table
UPDATE Email SET EmailDT='31 Mar 2004' WHERE Idx={BDF51DBD-9E4F-4990-A751-5B25D071E288}
where Idx field is a uniqueidentifier type and EmailDT is datetime type. I found that when this query calling by a VB app. then it have error "[Microsoft][ODBC SQL Server Driver]Syntax error or access violation" and i have tried again in Query Analyzer, same error also occur, the MS SQL server is version 7. Please help. thanks.
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May 12, 2006
Not a SQL guy but can do enough to be dangerous :)Trying to update a record. We have records that have a field with datasurrounded by some comment text such as *** Previous Public Solution*** Start and *** Previous Public Solution *** End . What I am tryingto do is write a SQL statement that will:Check that field C100 = TICKET0001 (to test with one record beforerunning on whole db)Check that field C101 is = ClosedCheck that field C102 is nullCopy field C103 data to field C102 and strip out any words such as ***Previous Public Solution *** Start and *** Previous Public Solution*** endThanks for any help!Kevin
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Dec 17, 2001
I have an update trigger which fires from a transactiion table to update a parent record in another table. I am getting no errors, but also no update. Any help appreciated (see script below)
create trigger tr_cmsUpdt_meds on dbo.medisp for UPDATE as
if update(pstat)
begin
update med
set REC_FLAG = 2
from deleted dt
where med.uniq_id = dt.uniq_id
and dt.pstat = 2
and dt.spec_flag = 'kop'
end
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May 30, 2008
I am trying to update a fields with an UPDATE statement but I keep getting the error message when I run the query.
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
I have this Update trigger that I know is causing the error message because I guess it's not built to manage multi-row updates.
Can someone help me re-write it. I also tried using the WHERE p.ID = p.ID but when I do that it modifies all rows in the modifieddate column instead of just the cells/rows that I'm updating
ALTER TRIGGER [dbo].[MultitrigCA]
ON [dbo].[ProdDesc]
AFTER UPDATE
AS
SET NOCOUNT ON
IF UPDATE (codeabbreviation)
UPDATE p
sET p.ModifiedDate = GETDATE()
FROM ProdDesc AS p
WHERE p.ID = (SELECT ID FROM inserted)
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Jul 20, 2005
Hi there,I'm a little stuck and would like some helpI need to create an update trigger which will run an update query onanother table.However, What I need to do is update the other table with the changedrecord value from the table which has the trigger.Can someone please show me how this is done please??I can write both queries, but am unsure as to how to get the value ofthe changed record for use in my trigger???Please helpM3ckon*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
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Apr 3, 2008
hi!
i have a database with about 20 tables. i appended to each table a column "UpdatedOn", and i want to write a trigger to set the date of the update date in that column, using a trigger.
i want to avoid the trigger launching for the last column (UpdatedOn).
how can i detect the rows that changed, and modify only the update date/time?
i read something about TableName_Inserted and TableName_Deleted, but i would prefer to copy as generic as possible the data from there, meaning, not to write column names in my script.
another idea i thought about was to prevent the trigger executing if no other column except for UpdatedOn changed, but... i encounter some trouble, when i try to pass column name (as string) to UPDATE() function.(Error: Expecting ID or QUOTED_ID)
thank you in advance.
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Oct 31, 2012
In Access, you have a combo with column designations for example me.combofield.column(x) and you can update another field with those column(x) values.
How do you do it in MS SQL?
I didn't mean "from a 'combo' field'" in SQL(!) I just want to reproduce the equivalent of an Access combo box.
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Feb 23, 2007
HiI have a table called cur and i want one of the fields to contain a value of two other fields multiplied togetherTable 'cur' Fields ID, A, B, Cfield C must = A*BI have this so far and it works but updates ALL of the fields C rows______________________________________________ALTER TRIGGER TG_cur ON cur AFTER INSERTAS BEGINUpdate curSET C = (i.A*i.B)from inserted i_______________________________________________RESULT:ID|A|B|C1 - 3 - 4 -202 - 6 - 6 -203 - 8 - 9 -204 - 2 - 3 -205 - 4 - 5 -20I think need a where statement at the bottom but the followings does not workwhere ID = i.IDREQUIRED RESULTID|A|B|C1 - 3 - 4 -122 - 6 - 6 -363 - 8 - 9 -764 - 2 - 3 -65 - 4 - 5 -20any help would be greatmany thanksBil
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May 30, 2008
Have a table with the following data.
Table1
Ord_no inv_no amt Account freefield3
25 125 100.00 1444
25 125 10.00 3555 Rebate
25 125 10.00 3555 Rebate
After the records are inserted I need to add the amt's where freefield3 equals rebate then subtract that sum from the amt where account = 1444. So my final result would be to have 80.00 in the amt field where account equals 1444
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Oct 10, 2006
Hi , i have a trigger that start on a record insert . . .This take de ID of the inserted record and start to fill other table in the database.In this triggher i have to update an image field of a table , getting the value from another table .I've casted this value in varbinary , but var binary can take only 8000 byte , and this fileis bigger than 8000 byte . . .How can i proced to solve the problem ???Thanks
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Jun 4, 2007
Stepping thru the code with the debugger shows the dataset rows being deleted.
After executing the code, and getting to the page presentation. Then I stop the debug and start the
page creation process again ( Page_Load ). The database still has the original deleted dataset rows.
Adding rows works, then updating works fine, but deleting rows, does not seem to work.
The dataset is configured to send the DataSet updates to the database. Use the standard wizard to create the dataSet.
cDependChildTA.Fill(cDependChildDs._ClientDependentChild, UserId); rowCountDb = cDependChildDs._ClientDependentChild.Count; for (row = 0; row < rowCountDb; row++) { dr_dependentChild = cDependChildDs._ClientDependentChild.Rows[0]; dr_dependentChild.Delete(); //cDependChildDs._ClientDependentChild.Rows.RemoveAt(0); //cDependChildDs._ClientDependentChild.Rows.Remove(0); /* update the Client Process Table Adapter*/ // cDependChildTA.Update(cDependChildDs._ClientDependentChild); // cDependChildTA.Update(cDependChildDs._ClientDependentChild); }
/* zero rows in the DataSet at this point */ /* update the Child Table Adapter */ cDependChildTA.Update(cDependChildDs._ClientDependentChild);
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Oct 25, 2006
Hi. I'm not such an expert in sql and I wanted to update a table's fields only if the value that im going to update it with is not null. How do I do that?
What I mean is something like:
---------------------------------------------------
Update database.dbo.table set
if(@newvalue !=null)
afield = @newvalue;
-------------------------------------------------
Really need your help on this. Thanks.
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Jun 1, 2006
Hi i've searched a lot with no results, im trying to do a trigger, this is the scenario
Got 3 tables, Product, Lines, Sublines
If Update Multiple sublines it should be updated to the products table, but i cant because the inserted table has multiple rows, the only way to do this is using cursors???
(Note, i cant do this using cascade because there are others, if i include this get a circular problem so i have to solve this other way)
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Apr 14, 2004
I have a trigger that uses SQL Mail to generate an email everytime a new record is added. I would like the following fields included in the email with the last record that was entered:
ticketID
loggedby
ActualHours
LoggedDate
RequestDate
TicketDetails
FinalOutcome
This is the trigger:
CREATE TRIGGER [NewRowsAdded] ON [dbo].[tablename]
FOR INSERT
AS
exec master.dbo.xp_sendmail
@recipients = 'joe.bloggs@bloggs.co.uk',
@subject = 'New Rows Added',
@message = 'Hey theres some new rows? Take a peek!'
Any assistance is greatly appreciated!
JT
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Jan 11, 2008
Do triggers work on the field level or only for full table updates, etc...?
I want to have a trigger that will change a field on another table based on the update of a specific field on a table.
Could anyone provide a sample please, if this is possible?
Thank you!
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Apr 28, 2006
Hello,While working through my encryption questions from preivous posts, I amfinding that I may have to resort to use triggers to do the encryption(not that this is the only way, but might be the best way for mycircumstances).I would like to create a trigger that will encrypt the field before thewrite is committed.I've found serveral posts about triggers, but nothing that fits what Iwish to do.Upon an insert or update I want to modify the ssn field with this:cast(EncryptByAsymKey(AsymKey_ID('Student_aKey'), cast(SSN asnvarchar(11))) as nvarchar(40))so, ssn '123456789' in SSN would become <something encrypted> in SSNThis is the trigger I have so far, but it is generating an error:CREATE TRIGGER F_Student_SSN.eSSNON F_STUDENT_SSNINSERT, UPDATEAS SELECT cast(EncryptByAsymKey(AsymKey_ID('Student_aKey'), cast(SSN asnvarchar(11))) as nvarchar(40))TIARob
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Dec 8, 2006
is there a Trigger that monitors updated rows? I would like to run a
insert into sometable (pkcolumnname)
select pkcolumnname from monitoredtable where ????
"i dont know what goes here to only get value of rows that have been updated"
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