I had some process in which ... I need to do some transaction control within dynamic SQL like as follows
Begin tran
insert.......
if @@error <>0
rollback
else
commit
Now, when i executed above dynamic SQL for some cases I think there is a some severe error at insert statement and thus resulted in abnormal termination of Dynamic SQL i.e. neither rollback nor commit is executed.
Now certain row level locks are still present on object involved in insert. Now my question is how should i Unlock those locked resources.
I've got an INSERT that's selecting data from a linked server and attempting to push 10 million rows into the blank table. More or less, it looks like this:
The instance of the SQL Server Database Engine cannot obtain a LOCK resource at this time. Rerun your statement when there are fewer active users. Ask the database administrator to check the lock and memory configuration for this instance, or to check for long-running transactions. There are no other active users. I ran it again and monitored the following DMO to watch the growth of locks for that spid:
SELECT request_session_id, COUNT (*) num_locks -- select * FROM sys.dm_tran_locks --where request_session_id = 77 GROUP BY request_session_id ORDER BY count (*) DESC
The number of locks started small and held for a while around 4-7 locks, but at about 5 minutes in the number of locks held by that spid grew dramatically to more than 8 million before finally erroring again with the same message. Researching, I can't figure out why it's not escalating from row locks to table locks at the appropriate threshold. The threshold in was set to 0 at first (Server Properties > Advanced > Parallelism > Locks). I set it to 5000, and it still didn't seem to work. Rewriting the INSERT to include a WITH (TABLOCK) allows it to finish successfully in testing. My problem is that it's coming out of an ETL with source code that I can't edit. I need to figure out how to force it to escalate to locking the entire table via table or server level settings.
A colleague suggested that installing service packs may take care of it (the client is running SQL Server 2008 R2 (RTM)), but I haven't found anything online to support that theory.
We are migrating our database(s) from ORACLE to SQL. In Oracle we were able to issue a SELECT statement and see all of the locks (Blocking and Non-Blocking) currently in the system. The query also included the Process ID of the process we needed to kill in order to get rid of the lock.
We now need to create the same type of query for Microsoft SQL Server 2012. I have seen postings on different sites saying that this info can be obtained using SP_WHO2 or using the SQL Server Management Studio Activity Monitor's PROCESSES tab, but we are looking for a SELECT statement that will give us similar information.
All-- Please help. I have an issue at a shared hosting site. Basically, my LDF and MDF files are becomming locked. (1) How can one unlock an LDF or MDF file? (2) Is there a way to run a pseudo-iisreset that applies just to a particular site? (3) Is there a way to force a detach from an MDF file? (4) Is there a way to force a DotNet application to shut-down and release all resources? (5) Will setting the database as AutoClose=True help and what are the implications of doing so? Here is the situation. I have a site at a shared hosting company. I upload my site via FTP. To start, I just upload the MDF file one time. I do not upload the LDF file as that gets created automatically. If I have a schema change, then I need to replace the MDF, pushing up a new version from the local box to the server box. However, what happens is that on the server box the MDF and the LDF become locked. They cannot be renamed, replaced, deleted, or moved. After some kind of timeout (I don't know how long) the files are released and I can delete the server's LDF file and replace the server's MDF file and all is well. The problem is that I do not know a way to remove the lock and/or force a timeout so the files are released without having to wait. What do you think? Please advise. Thank you. --Mark Kamoski
I Everytimes I run a software I wrote on the server I get the following error:
Process ID %d attempting to unlock unowned resource %.*ls.
Does anybody experienced that type of problems before?
have a copy of the database and of the sfotwqre locally on my win 98 machine where it runs without problem. Once I try on the server it crashes miserably.
i have a SP that updates a table for about 2hours. My question is, is it possible to unlock this table so that other SPs or SSIS packages can update/innsert into the same table i am updating.
I know that if you want to unlock all records should issue a rollback or commit statement. But what about to unlock one records from a list of records and keep the other records locked. I used the following statement to make the lock for the records:-
SET TRANSACTION ISOLATION LEVEL SERIALIZABLE begin transaction select item_no,itemdesc from ims.item [rowlock] with (xlock) where item_no = '0100100001'
begin transaction select item_no,itemdesc from ims.item [rowlock] with (xlock) where item_no = '0100100002'
I have read some post about it in the forum, but i still have 0xC001404D error....
In a custom transformation script, i get a column (just one row in this columns) whit an integer, and i need to assign this value to a variable. My code is as following:
Public Class ScriptMain Inherits UserComponent
Dim nfilas As Int32
Public Overrides Sub Entrada0_ProcessInputRow(ByVal Row As Entrada0Buffer)
As you can see i have been doing several king of solutions... In the next step i write this cariable to a text file... do i have to lock for read the variable also??
I have an Access97 front end using ODBC to communicate with anSQLServer 7.0 back end on a different machine. Most of the work I doin the front end uses forms bound to linked tables that reside on theback end. In one instance though I have to create some new recordsprogrammatically and I use code in a procedure in a general module inthe front end that looks like this:Set newrec = db.OpenRecordset("SELECT * FROM [workshop assignments]",dbOpenDynaset, dbAppendOnly + dbSeeChanges)newrec.AddNew ' assign the workshopnewrec![ComboWS] = WSKeynewrec![Participant] = IndividualIDnewrec![Assigned] = Truenewrec.Updatenewrec.CloseThe problem occurs later when I am in a form that views those recordsthat were just added. For some reason SQLServer still has thoserecords locked, and I am not allowed to make any changes to them. Ican't even just delete them. In fact, even when I exit out of all myforms, go straight into the table window, straight to the table itself(but still in the front end), I cannot delete or change those recordsdirectly. I've tried taking down the front end and bringing it backup. I've tried restarting the whole computer where the front endresides. I've also tried restarting the SQL Server. I still can'tchange those records. Oddly enough, I can change the records withinSQL Server itself. The Access97 front end will see the new values, butstill is unable to do anything with them. How can I fix this problem?Thank you for any help you can give me,Rebecca Jaxon
Hi... When i try to login(other than sa for e.g. "test1" user) in mssql server the account be locked. By using sa account i try to unlock the test1 user by using the following command
Alter login [test1] with PASSWORD = 'pass123' UNLOCK
when i execute above command test1 user unlocked successfully.
But our requirement is, with out setting the PASSWORD property i want to unlok the test1 user
When I develop I sometimes forget and try to open the database file with the MS SQL Express Manager even though the web application I am devloping is still using it ... error lock occurrs and thats fine .... but what is the best way to unlock the files again? .... often I find myself having to restart the workstation because of this and thats sounds a bit like overdoing it .... there should be an easier way to unlock locked db files ...without having to restart the workstations.... is there ?
I have read that even during read procedures (sql select statements), sql server uses row locking. I know that you can use the NOLOCK keyword, but if you don't everytime that a user makes a selects statement on a table, does sql server really lock those rows, and if so are they then unavailable to another user who wants to make a select statement at the same time on that same table? That does not seem like it would be the case otherwise it would not scale well. Thanks for any clarification on this.
I am using SQL Server7.0. I opened a table through the Enterprise Manager and left it open. In the Query Analyzer when I try to update a field on that table(more than 2000 rows), it goes on running. When I watched the Current Activity, it shows that the update process is being blocked by the select query. But if I try to update the same column for less than 1500 rows, there is no blocking issue and the update occurs immediately. Can anybody let me know why this is happening and what should I do to prevent it?
To I got the following error message. Can some one tell how to solve this issue.
Server: Msg 1204, Level 19, State 1, Procedure OPEN_OBJECTS, Line 2 SQL Server has run out of LOCKS. Rerun your statement when there are fewer active users, or ask the system administrator to reconfigure SQL Server with more LOCKS.
Hi I have a big query which updates around 14000 rows at a time if i place a lock on the table and others try to update the same table is it possible to let them know that table is locked by someone else.
I have a stored proc which will be entering/updating a record into a table. The table's key is an integer field which I may have to increment by one. I know I can use
declare @nextid int set @netxid = max(id) from table insert @nextid into table Is some kind of lock the best way to approach this?
I Have 359 locks on MY Database ,They are always there on my DB.The DB is a development database and lots of summary Stored procedures will be running on this DB. Does it effect the performance.How can I remove those locks. Thanks.
Hi I want to write all my select ststements using locks how i should write a select ststement using locks i searched for examples but iam not getting the syntax Plz give me one example for select statements using locks
How to lock a Row in SQL2000 so that nobody can select that row. I applied ROWLOCK, but i am not finding the way. My query is "SELECT * FROM tablename WITH (ROWLOCK)" Is this the correct way to write locks. I would be thankful if u help me
There are 2 tables for transaction. The header and tail tables. How do I insert records. if one is updated & another is not ? the sequence for tracking the records will fail. How do I deadlock the table for insert especially when I use stored procedures for 'Inserts'.
I have just upgraded my sql 65 to sql 7. The problem I am running into is running out of locks all the time with 50000 locks. The sql box has 4 pentium pro 200 processors and 1 Gig of ram. Here is the error message:
DESCRIPTION:Error: 1204, Severity: 19, State: 1 SQL Server has run out of LOCKS. Rerun your statement when there are fewer active users, or ask the system administrator to reconfigure SQL Server with more LOCKS.
Everytime I try to open the design-mode of a table from enterprise mgr, I get this error 1204.--- SQL Server has run out of LOCKS. Rerun your statement when there are fewer active users, or ask the system administrator to reconfigure SQL Server with more LOCKS. There no other users but me. Locks have been configured to their max (over 200000000). Don't understand whats wrong. Please help..
I`m two weeks old with SQL 7 Beta 3 with no formal training whatsoever. I just kinda tinker with it at the moment since it`s installed in a stand alone server with me having sole access.
Using DTS (import into SQL), I tried to migrate an Inventory History dbf (Dbase 3) having 13+ million records. I got this error message after a few hours:
"Error at Destination for Row number 6353502. Errors encountered so far in this task: 1. SQL Server has run out of LOCKS. Rerun your statement where there are fewer active users, or ask the system administrator to reconfigure SQL Server with more locks."
It was the only application running on the server (aside from the SQL services) and i was the sole user. This is my first time on SQL Server and as DBA i should know everything `bout it.
Question is how and where do i reconfigure for more LOCKS? And how many LOCKS do i have to set?
I am using SQL Server 6.5, when two or more independent applications put transactions through SQL, it locks up. Example of locks up.
When the OrderLines table is locked, then I put the following (Select * from OrderLines) then the query does not return any values, the world goes round and round, the only way out is to shut down and cross my fingers whilst SQL goes into recovery mode.
I have read through some of the documentation, such as deadlocks, livelocks and lock starvation but it say none of these will lock the whole machine. But somehow simultaneous transactions can, and the current activity dialog goes red, bright red.
