Hi Frineds
I have a table with contains Text column. and which is accessed by each page of the site. It is getting frequent Dead Lock Any body can suggest me a good solution pl.
Thanks.
MuraliB
Hi,
Lets say I have table A and table B and another table AB where each row in AB refereces a row in A and a row in B. Furthermore, I set both relationships to cascade upon delete.
Then one user deletes a row from A which cascades to two rows in AB. But another user has deleted a row in B which is also trying to delete the same two rows in AB. The first transaction deletes one of the AB rows, the second deletes the other and then both transactions cannot get the other row in AB to delete because its locked. So this is a deadlock! Is it really that easy to get a dead lock?
Cheers, XF.
Hello !!!
I have 2 transactions, the first one has MANY updates to the table A and it finishes with a commit or rollback (ONLY AT THE END), the second one has only one insert into the table A that finishes with a commit or rollback, the problem is that the update process takes a long time to finish, and the insert process could be thrown during the first process, there's where I get everything locked cause the table A is locked and my java aplication gets stuck.
Note: When I execute each transaction independient I have no problems.
Is there any possibility to lock table A completly for the first transaction and release It for second one ??
Could you give me any suggestion of what to do step by step ?
Thanks !!!
Trying to get SQL 2005 to report dead locks via email.
I performed the following
Execute Sp_configure ‘blocked process threshold’, 200
Then generated a deadlock
BEGIN TRAN
UPDATE CUSTOMER
SET CUSTOMER_NAME = 'F'
WHERE CUSTOMER_ID = '1'
WAITFOR TIME '17:52'
ROLLBACK TRAN
Then on another query ran this
SELECT CUSTOMER_NAME FROM CUSTOMER
In sp_who i see it blocked. and the select is waiting for the update.
But i do not get anything reported in logs for the dead lock.
I tried to set up an alert.
MSSQL$ASRCFHSQL2005:Locks
Number of Deadlocks/sec
Total
rises above 1
When doing the reconfigure is something supposed to be written to the logs..........
Trying to set up system so if any dead locks arise i am sent an email
Thanks
Hi There,
I was updating a Custome Error Log table in different Data Flow Task in a Package. Custom log table is being used to log the Redirect Rows which sent by a component if it has errors. So I am catching the error raised by componets and putting them all into one table. I thing this could be the cause for the following error. I am not sure Please help me out. What could be the cause of this error and how to prevent it?
SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80004005. An OLE DB record is available. Source: "Microsoft OLE DB Provider for SQL Server" Hresult: 0x80004005 Description: "Transaction (Process ID 71) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.".
Dear all,
I am build an application based on different WCF services which colect different type of data from an SQL database.
I can have up to 10 clients whcih could at a certain times collect the same data as a read or right operation.
I have run a test where I have only 2 clients, and I have been surprise to receive a nice error of dead lock process.
The error is as follow :
Transaction (Process ID 63) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction."
In the store procedure which I am suspected, not sure yet, I have been advise to use the
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE;
but no help
According to what I could notice in my application, I have one process which insert rows in this table, while clients read the same table..but I guess dead lock need to investigate in a more better way and handle it anyway...
I am not a databse administrator so I have no idea how to handle such situation.
Thnaks for your help
regards
serge
Please help me to remove deadlock. Server Error in '/' Application.
Transaction
(Process ID 69) was deadlocked on lock resources with another process
and has been chosen as the deadlock victim. Rerun the transaction.
Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException:
Transaction (Process ID 69) was deadlocked on lock resources with
another process and has been chosen as the deadlock victim. Rerun the
transaction.
Source Error:
Line 292: da.SelectCommand.Parameters.Add(HierCode3)Line 293: Dim ds As New DataSetLine 294: da.Fill(ds, "Employees")Line 295: Con.Close()Line 296: Dim dt As DataTable = ds.Tables("Employees")
Source File: C:InetpubwwwrootDTRVersion2.0Home.aspx.vb Line: 294
Stack Trace:
[SqlException (0x80131904): Transaction (Process ID 69) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.] System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +857466 System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +735078 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188 System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1838 System.Data.SqlClient.SqlDataReader.HasMoreRows() +150 System.Data.SqlClient.SqlDataReader.ReadInternal(Boolean setTimeout) +214 System.Data.SqlClient.SqlDataReader.Read() +9 System.Data.Common.DataAdapter.FillLoadDataRow(SchemaMapping mapping) +156 System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue) +153 System.Data.Common.DataAdapter.Fill(DataSet dataSet, String srcTable, IDataReader dataReader, Int32 startRecord, Int32 maxRecords) +172 System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +175 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +137 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83 _Default.LoadfromDB() in C:InetpubwwwrootDTRVersion2.0Home.aspx.vb:294 _Default.getData() in C:InetpubwwwrootDTRVersion2.0Home.aspx.vb:143 _Default.Page_Load(Object sender, EventArgs e) in C:InetpubwwwrootDTRVersion2.0Home.aspx.vb:30 System.Web.UI.Control.OnLoad(EventArgs e) +99 System.Web.UI.Control.LoadRecursive() +47 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
HI,
i am updating one table, this transaction and another transaction
causing the Dead lock.
How i have to resolve a Dead lock issue.
--venu
I'm having a transactional replication which replicates data every 1min.... and i got a job which runs every 15mins and pulls the reports from source db which is being replicated.
Some times when the replication is pushing the data the same time the job is trying to generate reports and as the table is being locked at the time of replication the dead lock issue is rinsing and the job is getting failed.
Please some one help me in solving this issue.
Thanks
hi,
i am having an exe application which runs every half an hour which will do some database operations, at the same time the web application will also uses the same DB when users acces the web application. at this time i am getting Dead Lock Exception as below, to avoid this what should i do. please guide me.
System.Data.SqlClient.SqlException: Transaction (Process ID 88) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection)
at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj)
at System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj)
at System.Data.SqlClient.SqlDataReader.HasMoreRows()
at System.Data.SqlClient.SqlDataReader.ReadInternal(Boolean setTimeout)
at System.Data.SqlClient.SqlDataReader.Read()
at System.Data.Common.DataAdapter.FillLoadDataRow(SchemaMapping mapping)
at System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue)
at System.Data.Common.DataAdapter.Fill(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords)
at System.Data.Common.LoadAdapter.FillFromReader(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords)
at System.Data.DataTable.Load(IDataReader reader, LoadOption loadOption, FillErrorEventHandler errorHandler)
at System.Data.DataTable.Load(IDataReader reader)
at B.DAL.LRQ.Select(String sLoanID)
at QN.Program.QNo()
How to export the dead lock information to the user ?
View 2 Replies View RelatedMy Database has many Dead lock issues,Will this Dead locks  cause Differential database failure ?.
View 6 Replies View RelatedHi
I am using conditional split Checking to see if a record exists and if so update else insert. But this cause database dead lock any one has suggestion?
Thanks
I m using SQL Server 2000.
I have Tabel named Topic and have a column name lineage. lineage has data like following:
//////546707//546707//546707/43213/
Now I want to get records who has only one "/" in it's crreponding lineage column.
Can somone tell me how to do that in SQL Server 2000?
Thanks
Khushbu
I have the following time value column in a table:
next_run_time
230000
73000
70000
The above actually translates to 23:00, 7:00AM,7:30AM, etc. How can I convert this into a meaningful time value?
[CODE]
SELECT NEXT_RUN_TIME FROM TABLE T1
[CODE]
I have a deadlock situation, part of the problem looks like this;spid ecid dbid ObjId IndId Type Resource ModeStatus------ ------ ------ ----------- ------ ---- ---------------- -------------404 0 9 792389892 1 KEY (010086470766) SIUWAIT72 0 9 792389892 1 KEY (010086470766) SIUWAIT115 0 9 792389892 1 KEY (010086470766) SIUWAIT61 0 9 792389892 1 KEY (010086470766) ISWAIT318 0 9 792389892 1 KEY (010086470766) SIUWAIT430 0 9 1112391032 1 KEY (010086470766) XGRANTThey are key locks I am used to the resource value generally beingunique by table. I am wondering if the other 'WAIT's are indeedwaiting based on the 'unique' resource value. Note that the exclusivegrant is on a different table but, the resource rsc_text value is thesame. Looking it up I get for a key lock that it's a hashed value, myreferance tells me what is is for a non-clustered index but, does notexplain what it would be for a clustered index.Does it protect this resource based exclusively on resource rsc_text oris it unique by ObjID/Rsc_text, has anyone seen this before?Suggestions?SQL Server 2000/SP3-Chris
View 1 Replies View RelatedI am using DTS to transfer some tables from one server to another as part of a migration. We want to be down for as little time as possible, but we need the most up-to-date copy of the database tables in question.
I am currently testing the transfer process in our test environment by migrating the data from one database to another on the same SQL instance.
There are 7 tables to transfer and the total size of the database is 450 MB (with around 117 MB used). The two largest tables have around 17,000 records each.
One table (the header) has no text column and it takes just a few seconds to transfer. The other table (the detail) has two columns, one of which is a text column (actually, its not fair to call it the detail table; the relationship is actually one-to-one, but for the sake of this discussion, let's leave it at that).
The header takes seconds to transfer, but the detail takes up to 18 minutes.
Physically, our test server is quite robust; 2 processors, a 3 disk RAID-5 for the data files and a separate RAID 1 partition for the logs. Performance counters don't indicate any real issues: during the transfer, the disk utilization on the data partition occasionally spikes to a high level, but comes right back down until the next spike (the spikes being separated by about 1 minute. No issues with memory, paging or CPU.
I have removed the clustered index on the affected table as well as the PK. No help.
Are text columns just slow? Is there something that I am missing?
Regards,
hmscott
I have a column like this:
Table: User
name, field1
Jack 1000|1001|1003
Berg 2000|1001|2004
Paul 1001|1000
Jane 1001
Now, I would like to replace all "1001" with nothing, and also remove the "|"-separator behind 1001 if it exists, basically removing both "1001" and "1001|", so the resulting table looks like this:
name, field1
Jack 1000|1003
Berg 2000|2004
Paul 1000
Jane
My tries, been plenty, but here are some:
Code:
UPDATE UserTable
SET field1 = REPLACE(field1, '1001', '')
UPDATE UserTable
SET field1 = REPLACE(field1, '1001|', '')
But the above queries replaces field1 only if the whole field matches '1001' or '1001|'...
The above queries do work, just like I want them to. I just happened to write them in this order on this post... did not do a copy of the actual query.
I need a script which will tell me Table name and column name where a given text is matching.
Example: search string = "I want to search something"
Output: Table T1 , Column C3.
DB: Microsoft SQL Server 2005 / 2008
Hi,
I am using data flow task to load data with the source as text file to sql server table with identity column.
After mapping all the columns except identity column, when I execute, the package failing saying
it can not insert null value into identity column. I donno how to get around with it ????
Thnaks,
V
Hi,
I want to lock a table so others cannot lock it but able to read it inside transactions.
The coding I need is something like this: set implicit_transactions on begin transaction select * from table1 with (tablock, holdlock) update table2 set field1 = 'test' commit transaction commit transaction
I have tried the coding above, it won't prevent others from locking table1.
So, I changed the tablock to tablockx to prevent others from locking table1. But this will also prevent others from reading table1. So, how can I lock table1 so others cannot lock it but still able to read it?
Thank you for any help
Hi All,I am looking for a store procedure or any alternate method which save my html file(s) text (with or without tags) in my table column automatically when I upload my html file to my file system (local hard drive).any help will be appreciate.Thanks in advance.
View 7 Replies View RelatedI need to update a large table, about 55 million rows, without filling the transaction log, in the shortest time as possible. The goal is to alter the table and change the data type for Text column from VARCHAR(7900) to NVARCHAR(MAX).
Since I cannot do it with an ALTER TABLE statement (it would fill up the transaction log) I'm thinking to:
- rename column Text in Text_OLD
- add Text column of type NVARCHAR(MAX)
- copy values in batches from Text_OLD to Text
The table is defined like:
create table DATATEXT(
rID INTEGER NOT NULL,
sID INTEGER NOT NULL,
pID INTEGER NOT NULL,
cID INTEGER NOT NULL,
err TINYINT NOT NULL,
[Code] ....
I've thought about a stored procedure doing this but how to copy values in batch from Text_OLD to Text.
The code I would start with (doing just this part) is the following, but maybe there are more efficient ways to do it, or at least there's a better way to select @startSeq in the WHILE loop (avoiding to select a bunch of 100000 sequences and later selecting the max).
declare @startSeq timestamp
declare @lastSeq timestamp
select @lastSeq = MAX(sequence) from [DATATEXT] where [Text] is null
select @startSeq = MIN(Sequence) FROM [DATATEXT] where [Text]is null
BEGIN TRANSACTION T1
WHILE @startSeq < @lastSeq
[Code] ....
Working on partitioning a few large tables. One of the tables included a text column and the €œTEXTIMAGE_ON [PRIMARY]€? clause which would prevent the partitioning of this table. After some research we found that the data was legacy and no longer used. We updated the column on the affected rows to NULLS and altered the column to a VARCHAR(20)
When I attempted to run the ALTER TABLE SWITCH I encountered the error
Msg 4947, Level 16, State 1, Line 1
ALTER TABLE SWITCH statement failed. There is no identical index in source table 'LocalDeltanet.dbo.testresultsjoe' for the index 'PKIDX_testSummary' in target table 'LocalDeltanet.dbo.testresults_part'.
After a lot of grief and testing I determined that the message was bogus and the real issue is that the 'sys.tables' still has €œlob_data_space_id€? with a value of 1 for this table.
I created a copy of the table with the text column altered to varchar and one with just the varchar to begin with. After copying data from the original table, I tried to run the alter switch. It failed once again for the text column altered to varchar table, but it worked for the varchar from the start.
Since it appears that this value is causing my issues, is there anyway to update the table in place. I know I can BCP the data out, but that would take too long and would defeat the advantage of using the alter switch method.
BOL States:
The allow updates option is still present in the sp_configure stored procedure, although its functionality is unavailable in Microsoft SQL Server 2005 (the setting has no effect). In SQL Server 2005, direct updates to the system tables are not supported. This means we cannot update the table manually.
Thanks
I simply made my script task (or any other task) fail
In my package error handler i have a Exec SQL task - for Stored Proc
SP statement is set in following expression (works fine in design time):
"EXEC [dbo].[us_sp_Insert_STG_FEED_EVENT_LOG] @FEED_ID= " + (DT_WSTR,10) @[User::FEED_ID] + ", @FEED_EVENT_LOG_TYPE_ID = 3, @STARTED_ON = '"+(DT_WSTR,30)@[System::StartTime] +"', @ENDED_ON = NULL, @message = 'Package failed. ErrorCode: "+(DT_WSTR,10)@[System::ErrorCode]+" ErrorMsg: "+@[System::ErrorDescription]+"', @FILES_PROCESSED = '" + @[User::t_ProcessedFiles] + "', @PKG_EXECUTION_ID = '" + @[System::ExecutionInstanceGUID] + "'"
From progress:
Error: The Script returned a failure result.
Task SCR REIL Data failed
OnError - Task SQL Insert Error Msg
Error: A deadlock was detected while trying to lock variable "System::ErrorCode, System::ErrorDescription, System::ExecutionInstanceGUID, System::StartTime, User::FEED_ID, User::t_ProcessedFiles" for read access. A lock could not be acquired after 16 attempts and timed out.
Error: The expression ""EXEC [dbo].[us_sp_Insert_STG_FEED_EVENT_LOG] @FEED_ID= " + (DT_WSTR,10) @[User::FEED_ID] + ", @FEED_EVENT_LOG_TYPE_ID = 3, @STARTED_ON = '"+(DT_WSTR,30)@[System::StartTime] +"', @ENDED_ON = NULL, @message = 'Package failed. ErrorCode: "+(DT_WSTR,10)@[System::ErrorCode]+" ErrorMsg: "+@[System::ErrorDescription]+"', @FILES_PROCESSED = '" + @[User::t_ProcessedFiles] + "', @PKG_EXECUTION_ID = '" + @[System::ExecutionInstanceGUID] + "'"" on property "SqlStatementSource" cannot be evaluated. Modify the expression to be valid.
Warning: The Execution method succeeded, but the number of errors raised (4) reached the maximum allowed (1); resulting in failure. This occurs when the number of errors reaches the number specified in MaximumErrorCount. Change the MaximumErrorCount or fix the errors.
And how did I get 4 errors? - I only set my script task result to failure
Hi,all:
This problem almost drives me crazy, hope I can get some hints from you guyz!!!
Ok, here is the situation:
I wanna only one users 2 modify the data(update) from my page each time, and if at the same time, there are some other users connecting my database through .aspx page, they can only browse the data until the first users finish updating.
It seems I need to implement locking the database, but I am not sure how I am gonna do that using asp.net!!!
Thanx in advance!
hi, i have an application that updates some records in sql tables, and i want to do a web application that updates records in the some database-table(sql) so, my question is how can i lock the row or table so i dont have concurrency problems.tnx in advance.
View 2 Replies View RelatedHello Friends,
I am having a VB application running for the SQL SERVER DB. The VB application is installed on the multiple of PCs in the network. Now when I am trying to fetch the same from all the different PCs simultaneously, its amazingly fast. But the issue comes when I am trying to update the same table (but different rows) from the different PCs simultaneously. The time taken is directly proportaional to the number of users. I am not getting what could be the problem? Can any one suggest me the approch? Is it some related to table / row / page locking? As all the connections are trying to update on the same table. I checked the isolation level. Its default, "READ COMMITTED". Kindly suggest...
Thanks in advance........
Rahul Jha
Hi Gurus,
How can we know that particular table is locked.
Thanks,
ServerTeam
Hai to all,
I want to lock a patricular table during my transaction is this possible, for Example
Create sp() as
BEGIN
Lock Table
Do Some work
Relaese the Lock
END
like this.
Is there any way to lock tables in SQL Server?
View 2 Replies View RelatedHi,If I run an insert statement from the query analyzer and then try toopen the table from enterprise manager then it takes long time to openthe table. But this problem dissapears when i put the statement insideBegin/End Transaction statement.Any idea why this is happening?Thank in advance.Taw.
View 1 Replies View RelatedWhich lock type or isolation level should I use to be sure that no onewill read or write or do anything with the table I'm using?Code block should look something like this:lock tableread value from tablechange value to new_valueupdate table set value = new_valuerelease lockWhile I'm changing the value absolutly no one should be able to readfrom the table.
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