Maybe Trigger Failed, Deadlock Victim? Pros Click Me!!!
Mar 10, 2000
Let's say I have a trigger on my orders table.
When this fires a query is done on the customer table to get some values
and put some order/customer data into an audit trail table.
In one period of time, it appears that the trigger did not put the data into the separate table. No known reason.
Suspicion: What if the customer table were locked by some process when the trigger fired. Maybe the trigger was chosen as a deadlock-victim.
?? I guess I need to check for @@ERROR during the trigger and do something. Any suggestions? I think I can raise the priority of my trigger to "win" during a deadlock.
If trigger activity is chosen as a deadlock-victim, can the trigger make another attempt to complete it's activity?
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Jul 10, 2006
Here is the exception I am getting, any idea why this might be happening:
Exception: ThisMethod is done: let this go: Exception:
Transaction (Process ID 74) was deadlocked on lock |
communication buffer resources with another process and has been chosen as the deadlock victim.
Rerun the transaction. Stack Trace: at
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Jul 10, 2006
Here is the exception I am getting, any idea why this might be happening:
Exception: ThisMethod is done: let this go: Exception:
Transaction (Process ID 74) was deadlocked on lock |
communication buffer resources with another process and has been chosen as the deadlock victim.
Rerun the transaction. Stack Trace: at
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Nov 14, 2007
Hi,
I was trying to extract data from the source server using OLEDB Source and SQL Server Destination when i encountered this error:
"Transaction (Process ID 135) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.".
What must be done so that even if the table being queried is locked, i wouldn't experience any deadlock?
cherriesh
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Jun 25, 2007
I am doing an update to set a field value = anothe field value (in thesame table) where it is not supplied. I'm handling this in thetrigger, but am getting deadlocks.Do you see anything wrong with this that would cause deadlocking?ALTER TRIGGER [trg_myTable_UPDATE]ON [dbo].[myTable]AFTER UPDATE,INSERTASSET NOCOUNT ONBEGIN TRANSACTIONUPDATE ASET A.MarketID = A.SiteIDFROM myTable AINNER JOIN INSERTED BON A.UID = B.UIDWHERE B.MarketID IS NULL;IF (@@ERROR <0)BEGIN -- if...then for error handlingRAISERROR 20000 'trg_myTable_UPDATE Update Trigger Failed.Transaction aborted.'PRINT 'Unexpected Error Occurred!'ROLLBACK TRANSACTIONENDELSECOMMIT TRANSACTION
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Aug 12, 2006
a trigger need to insert or update record at the other table in high traffic environments
however, the deadlock happens; ie, a trigger running twice at the same time want to need to insert record at the table.
i trid to change isolation as SERIALIZABLE or REPEATABLE , but i cannot solve the problem. i guess the "while loop" affects the result because i try to cancel the loop and execute smoothly.
? How to solve the deadlock???
Thx
-----------------------------
i used the following commands to change isolation level:
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE
begin transaction
commit transaction
-----------------------------
the code are as follows:
declare setskuCursor cursor
local
static
for select item, quantity from invset where sku = @sku
open setskuCursor
fetch next from setskuCursor into @invsetitem, @invsetqty
while @@fetch_status = 0
begin
select @balsku = sku, @opendate = opendate from invbal where sku = @invsetitem
if (@balsku is not null)
begin
if @txdate <= @opendate
update invbal set slsqtynow = slsqtynow + @itmtxqty * @invsetqty where sku = @invsetitem
if @txdate > @opendate
update invbal set slsqtynxt = slsqtynxt + @itmtxqty * @invsetqty where sku = @invsetitem
end
else
begin
INSERT INTO INVBAL (SHOP, SKU, OPENDATE, SLSQTYNOW) VALUES (@shop, @invsetitem, @bizdate, @itmtxqty * @invsetqty)
end
fetch next from setskuCursor into @invsetitem, @invsetqty
end
close setskuCursor
deallocate setskuCursor
-------------------------------------------------------------------
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Aug 22, 2006
Hello Db experts,
Recently I am facing a problem as, I have a trigger on table1 in after insert
event. When i tried to insert data on table from 4 different source deadlock problem for causing trigger fire. Whenever I removed the trigger no dead lock occured. Can any one help me to handle this deadlock problem.
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May 18, 2015
I have a weekly Maintenance Plan Reindex job that has failed because of a deadlock. My question seems simple enough and I'm ashamed to say I ought to know this answer, but here goes: Does the rest of a given job continue after such failures (this one was maybe 3/4 through the log) occur?
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Nov 10, 2015
Is there a way to send out an email woth deadlock information (victim query, winner query, process id's and resources on which the deadlock occurred) as soon as a deadlock occurs in a database or at instance level?I currently has trace flag 1222 turned on. And also created an alert that send me an email whenever a deadlock occurs. but it just says that a deadlock occurred and I log into sql server error log and review the information.
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Aug 12, 2005
I want to create a trigger on a view for insert, but I got a message said 'Invalid object name'. I can select from this view. Followings are my scripts and error message:
(run on SQL 2000)
create table t1 (c1 char (10) NULL )
create view vt as select * from t1
create table log1 (c1 datetime NULL )
create trigger tr1 ON t1
for insert
AS
insert into log1 values (getdate())
----------all above succeed
create trigger tr2 ON vt
for insert
AS
insert into log1 values (getdate())
Server: Msg 208, Level 16, State 4, Procedure tr1, Line 1
Invalid object name 'vt'.
Thanks!
Theresa
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Jun 24, 2015
I have a logon trigger on a SQL Server 2008 R2 Express Advanced production database to prevent remote logons. The trigger works fine. When I need to connect via my local machine, remotely, I connect via a VPN, can connect with SSMS and do whatever I need. However, if I use a linked server on my local machine (still connected via VPN), I receive the logon error
Msg 17892, Level 14, State 1, Line 1
Logon failed for login 'sa' due to trigger execution.
The trigger is below and it logs any failures, except for the linked server.
If I disable the trigger, the linked server connects ok.
CREATE TRIGGER [tr_MasterLogon]
ON ALL SERVER WITH EXECUTE AS 'sa'
FOR LOGON
AS
BEGIN
DECLARE
@ClientAddress varchar(48) = (SELECT client_net_address
[Code] ....
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Feb 1, 2008
FYI: I'm using SQL2005 on a windows 2003 server.
So, I've written an Instead of Trigger to update a foreign key field based on information in another field of the same record.
To add some error handling to the process I updated the Trigger to insert any records that don't have legitimate foreign keys into a second table.
This process works great when I test it by just adding a record using the table view in the SQL Management Studio or through a query run in the query browser.
However, when a record is added via an ODBC connection I get foreign key constraint errors and records are not added to the second table. If the foreign key is legit the record is added and the part of trigger that updates that keyed field executes just fine.
Is anyone aware of this issue? Is there a way around it?
I found the following MSKB article but I'm not sure if it applies to my situation:
http://support.microsoft.com/kb/304096
Here's my current code, if that track the problem in anyway:
Code:
ALTER TRIGGER UpdateTicketID
ON Email
Instead of INSERT
AS
IF ((Select charindex('{', [subject]) FROM Inserted) = 0)
BEGIN
INSERT INTO
BadEmail ([Subject], Sender, Body, EntryID, LastModificationTime, AttachmentLInk, SendTo, Cc, ContactID)
Select
[Subject], Sender, Body, EntryID, LastModificationTime, AttachmentLink, SendTo, Cc, ContactID
From
Inserted
END
ELSE IF ((Select substring([subject], charindex('{', [subject])+1, (charindex('}', [subject]) - charindex('{', [subject]))-1) From Inserted) NOT In (Select TicketID From Ticket))
BEGIN
INSERT INTO
BadEmail ([Subject], Sender, Body, EntryID, LastModificationTime, AttachmentLInk, SendTo, Cc, ContactID)
Select
[Subject], Sender, Body, EntryID, LastModificationTime, AttachmentLink, SendTo, Cc, ContactID
From
Inserted
END
ELSE
BEGIN
INSERT INTO
Email ([Subject], Sender, Body, ticketID, EntryID, LastModificationTime, AttachmentLink, SendTo, Cc, ContactID)
Select
[Subject]
, Sender
, Body
, substring([subject], charindex('{', [subject])+1, (charindex('}', [subject]) - charindex('{', [subject]))-1)
, EntryID
, LastModificationTime
, AttachmentLink
, SendTo
, Cc
, ContactID
From
Inserted
END
GO
Thank very much for any help.
-Will
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Mar 30, 2008
Hi, I need a help with a SP, professionals only. If you're interested PM/email me please.
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May 22, 2002
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Any feedback is appreciated.
Thank You
Pam
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Aug 13, 2001
Anyone know where I could find some good articles about pros and cons of upgrading SQL 7 to SQL 2K?
Our boss suddenly got this bug up his rear that we need to upgrade. :(
Probably because we are to a point where everything is running smoothly, and he needs to throw a monkey wrench in it.
We are a very small shop, and are not stressing SQL 7 in the least. I am interested to read some articles about SQL 2K, because right now, I can't see any possible reason an upgrade would be worth doing.
Thanks.
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Nov 3, 2005
I have a requirement where I need to perform a query for positioninformation. But for some types of entries, I need to "expand" the rowto include additional position rows. Let me explain with an example:An index is a security that is made up of components where eachcomponent has a "weight" or a number of shares. So if I have 1 share ofthe index, I have X shares of each component.AAPL is an Equity, CSCO is an Equity, SPY is an Index. Lets say thatSPY has one component, AAPL, with shares being 10. (1 share of SPY = 10shares of AAPL).So, I do some trading and I end up with positions as follows:+10 AAPL-5 CSCO+2 SPYThe query I need returns:+10 AAPL-5 CSCO+2 SPY+20 AAPL (from 2 SPY * 10 shares)which becomes (after grouping):+30 AAPL-5 CSCO+2 SPY-----------------------------------------Based on that criteria and the following schema (and sample data):-- Drop tablesDROP TABLE [SecurityMaster]DROP TABLE [Position]DROP TABLE [IndexComponent]-- Create tablesCREATE TABLE [SecurityMaster] ([Symbol] VARCHAR(10), [SecurityType] VARCHAR(10))CREATE TABLE [Position] ([Account] VARCHAR(10), [Symbol] VARCHAR(10), [Position] INT)CREATE TABLE [IndexComponent] ([IndexSymbol] VARCHAR(10), [ComponentSymbol] VARCHAR(10), [Shares] INT)--Populate tablesINSERT INTO [SecurityMaster] VALUES ('AAPL', 'Equity')INSERT INTO [SecurityMaster] VALUES ('MSFT', 'Equity')INSERT INTO [SecurityMaster] VALUES ('MNTAM', 'Option')INSERT INTO [SecurityMaster] VALUES ('CSCO', 'Equity')INSERT INTO [SecurityMaster] VALUES ('SPY', 'Index')INSERT INTO [Position] VALUES ('001', 'AAPL', 10)INSERT INTO [Position] VALUES ('001', 'MSFT', -5)INSERT INTO [Position] VALUES ('001', 'CSCO', 10)INSERT INTO [Position] VALUES ('001', 'SPY', 15)INSERT INTO [Position] VALUES ('001', 'QQQQ', 21)INSERT INTO [Position] VALUES ('002', 'MNTAM', 10)INSERT INTO [Position] VALUES ('002', 'APPL', 20)INSERT INTO [Position] VALUES ('003', 'SPY', -2)INSERT INTO [IndexComponent] VALUES ('SPY', 'AAPL', 25)INSERT INTO [IndexComponent] VALUES ('SPY', 'CSCO', 50)INSERT INTO [IndexComponent] VALUES ('QQQQ', 'AAPL', 33)-- *****************************-- Based on the rules:-- 1) Index positions appear like other positions (account /symbol) pair, but-- its components show up as new rows of account (of index),symbol (equal--to component symbol), position (equal to shares * index position)-- 2) One row for each account / symbol pair (GROUP BY account andsymbol, SUM position)-- Expected output (without grouping) (sorted by account / symbol)-- 001 AAPL 10-- 001 AAPL 375 (component shares * index position) (25* 15) (SPY)-- 001 AAPL 693 (component shares * index position) (33* 21) (QQQQ)-- 001 CSCO 10-- 001 CSCO 750 (component shares * index position) (50* 15) (SPY)-- 001 MSFT -5-- 001 QQQQ 21-- 001 SPY 15-- 002 AAPL 20-- 002 MNTAM 10-- 003 AAPL -50 (component shares * index position) (25* -2) (SPY)-- 003 CSCO -100 (component shares * index position) (50* -2) (SPY)-- 003 SPY -2-- Expected output (with grouping account / symbol) (sorted by account/ symbol)-- 001 AAPL 1078-- 001 CSCO 760-- 001 MSFT -5-- 001 QQQQ 21-- 001 SPY 15-- 002 AAPL 20-- 002 MNTAM 10-- 003 AAPL -50-- 003 CSCO -100-- 003 SPY -2---------------------------------------------Is a UNION the best way to perform the query. What are the pros andcons? What, if any, is a better way?SELECT[Account], [Symbol], SUM([Position]) AS [Position]FROM(SELECT[Account], [Symbol] , [Position]FROM[Position]UNION ALLSELECTP.[Account] , IC.[ComponentSymbol] AS [Symbol] , (P.[Position] *IC.[Shares]) AS [Position]FROM[IndexComponent] ICJOIN[Position] PONP.[Symbol] = IC.[IndexSymbol]) DGROUP BY[Account], [Symbol]ORDER BY[Account], [Symbol]
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Jul 20, 2005
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Mar 28, 2004
can anyone explain the Pros and Cons of Stored Procedures ??
thanks
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Sep 19, 2007
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Sep 11, 2007
Thanks for the help on the previous thread.
It seems to me that either by accident or design, SQL Server tends to steer you away from backing up directly over the network.
Are there reasons for not doing this because you obviously don't want to leave your backups on a local drive in case the drive fails?
Some possibilties that I can think of are:-
1. Local drives have faster access times and SQL backups can get quite large. I did a quick test and found that a netwrok backup takes 2 to 3 times longer than it does on a local drive.
2. Backing up on the netwrok could hog too much bandwidth. I haven't tested this and would be surprised it it's true.
3. There could be some reason that you don't want the Server and Agent services running under a domain account but want to leave them on the Local System account. I am not aware of any such reasons by the way.
4. Local drives persumably have a slightly higher availability than network drives. If the server is running, the drive should be available.
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Apr 4, 2007
Like in the subject: What are the cons and pros of using nvarchar(max) versus ntext?
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Jun 27, 2004
I'm just wondering what any pros and cons of using multivalue columns in a database are.
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May 9, 2006
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Also, we will be integrating Community Server into this Web site. Of
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We were thinking of giving CS its own database also; bad practice, or....it doesn't matter much?
Thank you
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Aug 17, 2006
I was wanting to know. I am making a site that might be come big. And me and this dude are considering pickering abotu GUID. I don't want to use them but he does. And I was wondering what should we do? I know nothing about guids
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Jun 15, 2006
vinod writes "Q1>Should I apply filter in sequence(based on primarykey,not null,comparision,between clause) ?
-How to apply filter in correct format,and SQL server internally execute it.
Q2>Should I use 'is not Null' to be put at the last?
Q3>Should I use 'between clause' rather than relation operator i.e(empid>10 and empid<200)
Q4>Does filters of sequence has any impact on the query execution process
table1[pkey1,col1,col2,col3] -->pkey is pkey1
table2[pkey2,pkey1,col11,col12,col13]--->pkey is pkey2, and pkey1 is foreign key
CaseI->select table2.pkey2,table1.col1 ,table2.col12
from table1 inner join table2
on table1.pkey1=table2.pkey1
where (table1.col3>100 and table1.col3<300 ) and table2.pkey1=2020 and table2.col13 is not null
CaseII->select table2.pkey2,table1.col1 ,table2.col12
from table1 inner join table2
on table1.pkey1=table2.pkey1
where (table1.col3 between 101 and 299 ) and pkey1=2020 and table2.col13 is not null"
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Oct 26, 2007
Are there any vices to using default constraints on all columns in your table.
For example an Int that defaults to 0
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So, DEFAULT CONSTRAINTS on every column. Is it good or Bad?
Thanks
Darin Clark
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Jun 19, 2008
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Jul 20, 2005
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Feb 26, 2008
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thanks much for any feedback,
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Apr 20, 2001
We are in the process of replacing our primary production server. In the process of determining how SQL server is going to be structured, it has been suggested that I place all current and new indexes on a separate file group. These filegroups would then reside on a separate shelf on the server. What are the pros and cons of doing this?
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Jun 27, 2007
I am using transaction replication between a transaction and reporting database server. When I use a snapshot to initialize my subscribers, I currently get a lot of deadlocks during the snapshot creation. I am considering using a database backup instead. Can anyone tells me how to reduce the table locks that I am getting during snapshot creation or advice on using database backups?
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Sep 23, 2015
All the logins with sysadmin role are locked out in one of the SQL server. Also in that instance Logon trigger is implemented which allows only certain users with Windows Authentication to logon.
This server is converted into single user mode by using command prompt. Now we are attempting to connect to SQLServer using command sqlcmd -S FTCPU3239 (since we do not have any other login) and create a new login with sysadmin role but are refused due to logon trigger. it says Login failed for login 'DomainNameUserName' due to trigger execution.
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Mar 7, 2008
Hey Guys,
I'm not sure if anyone can help me with this but I am trying to achieve the following:
I have a row (In this case it is information on a fix) and on a button click I am trying to get it to "archive" it. At the moment I have it so that it it takes the current information and adds it to the archive table adding an archive date. The thing that I am struggling with is incrementing the version number. So, I need it to (in these steps I think) - Look for existance of the other entires of that ID, look for the version number that is related to the newest date of those knowledgeIDs and then add 1 to it. If that knowledgeID doesnt exist then add it as one.
My current code is below:
Thanks in Advance =)
C# Codeprotected void Page_Load(object sender, EventArgs e)
{UserName = (string)Session["UserName"];
Label4.Text = UserName + " Is Current Logged In";UserType = (string)Session["UserType"];if ((Session["UserName"] != null) & (UserType == "Helpdesk"))
{Response.Redirect("Accessrights.aspx");
}else if (Session["UserName"] == null)
{Response.Redirect("Login.aspx");
}
FixName = "default";Description = "default";File = "default";
ADate = myCalendar.TodaysDate.ToShortDateString();
AddDate = Convert.ToDateTime(ADate);myConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=C:\inetpub\wwwroot\HOF\App_Data\HOF.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True;";
}protected void Button1_Click(object sender, EventArgs e)
{SqlConnection myConnection = new SqlConnection(myConnectionString);
try
{
FixName = TextBox1.Text;
SqlCommand myCommand = new SqlCommand("select * from Knowledge WHERE FixName like '%" + FixName + "%'", myConnection);
myConnection.Open();SqlDataReader myReader = myCommand.ExecuteReader();if (myReader.HasRows)
{while (myReader.Read())
{
TextBox1.Text = myReader["FixName"].ToString();TextBox2.Text = myReader["Description"].ToString();
File = myReader["Location"].ToString();if (File != null)
{
TextBox3.Text = File;
}
else
{TextBox3.Text = "There is no script avaliable";
}KnowledgeID = myReader["KnowledgeID"].ToString();Add = myReader["DateAdded"].ToString();
}
myConnection.Close();
}
else
{TextBox1.Text = FixName + "Does not Exist. Please try again.";
}
}catch (Exception ex)
{
myConnection.Close();
}
try
Description = TextBox2.Text;File = Convert.ToString(FileUpload1.FileName);if (CheckBox1.Checked == true)
{SAPPS = "True";
}
else
{SAPPS = "False";
}
{SqlCommand mycommand2 = new SqlCommand("INSERT INTO Knowledge (FixName, Description, Location, DateAdded, DateArchived, Version, KnowledgeID) SET ('" + FixName + "','" + Description + "','" + File + "','" + Add + "','"+AddDate+"','" + SAPPS + "','"+I NEED A VALUE HERE+"','"+KnowledgeID+"')", myConnection);SqlDataAdapter myDataAdapter = new SqlDataAdapter(mycommand2);
sa = mycommand.ExecuteNonQuery();
myConnection.Close();
}catch (Exception ex)
{
myConnection.Close();
}
}
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