Working with SQL 7 and Visual Basic 5.0:
We have experienced a lock situation and we do not know how it happened nor how to solve it:
When trying to update a record we get the following message.
Run time Error 3197:
The Microsoft Jet Database engine stopped the process because you and another user are attempting to change the same data at the same time.
And for sure, ONLY one user is connected at the time.
Apparently, the record is marked and can be read but CAN NOT be updated.
Fortunately the record CAN be deleted !!!
The only way we found was using the VISDATA.exe that comes with Vbasic, to delete the record and add a new record with the same information.
Since this condition makes any updating program to be aborted, it's a big problem.
How this happened?
Is there any way to prevent this?
Is there a way to detect this in advance?
Is there a way to correct this situation automatically, such as rebuild or check the Data Base?
Your advise will be greatly appretiated
TIA
Gerardo Alvarez
asaca@asaven.com
asaca@telcel.net.ve
Bienvenido a nuestro Site en http://www.asaven.com
Hello. I have a database with a record that has two columns locked. descrip1 and descrip2. they are both nvarchar(max) columns. These are the only two columns of the record that remain locked. I am certain no user is accessing the record. I have even moved a backup of the database to my testing computer and the lock still exists. How do I remove the lock from these two columns on that particular record.
I can edit these two columns on other records. I have researched "Unlock" on MSDN but it doesn't seem to apply to t-sql. Any help would be greatly appreciated.
I'm trying to determine which user has locked a given record from VB6.I know I can use sp_lock and sp_who, and match up the data to determinewhich users have locked records in my database, however I haven't seen a wayto match the specific user to the specific record. What am I missing here?Thanks!*David*
I have recently moved some native Access tables to SQL Server 7. These tables are updated in code. When the update is done via a SQL statement, I get "This record is being modified by another user. . . Save, Copy to Clipboard, Drop Changes"
When the record is being updated via DAO code, I get, "ODBC Call Fail"
Both errors are most irritating and I desperately need to find a way around this. Any suggestions would be greatly appreciated.
We have a project developed on asp.net 3.5 with SQL Server 2008 R2 as back end database. One of our client is facing issue of system performance in the afternoon time only. Mostly the tables are getting locked for unlimited time and system gets very slow. Need a professional SQL Server DBA to identify the root cause.
Can anyone advise me as to how I can add the date and time to 2 columns in the sql server database for each record that is added. I'd prefer not to use the webform. Can sql server add the date automatically to the row? thanks
I am using VS2005 (VB) to develop a PPC WM5.0 Program. And I am using SQLCE 3.0. My PPC Hardware is in 400MHz.
The question is when the program try to insert the first record into sdf database after each time the program started. It takes a long time. Does anyone know why and how can I fix it?
I will load the whole database into a dataset when the program start and do all the "Insert", "Update", "Delete" in this dataset and fill it into database after each action.
cn.Open() sda = New SqlCeDataAdapter(SQL, cn) 'SQL = Select * From Table scb = New SqlCeCommandBuilder(sda) sda.Update(dataset) cn.Close()
I check the sda.update(), it takes about 0.08s for filling one record into database normally. But:
1. Start the PPC Program
2. Load DB into dataset
3. Create a ONE new record in dataset
4. Fill back to DB
When I take this four steps everytime, the filling time is almost 1s or even more!
Actually, 0.08s is just a normal case. Sometimes, it still takes over 1s to filling back a dataset which only inserted one record when the program is running. (Even all inserted records are exactly the same in data jsut different in the integer key)
However, when I give up the dataset and using the following code:
cn.Open() Dim cmd As New SqlCeCommand(SQL, cn) ' I have build the insert SQL before (Insert Into Table values(XXXXXXXXXXXXXXX All field)
I found that it is still the same that the first inserted record takes more time, but just about 0.2s. And the normal insert time is around 0.02s. It is 4 times faster!!!
Hallo, if a row is locked in SQLExpress and an other user want to update this row, SQLExpress waits until timeout. And than I get the errormessage "timeout".
What I need is an immediately errormessage "row is locked" !
So that the user dont need to wait if the row is locked and I need the correct errormessage so that I can check if there is a databaseproblem or only the row locked because an other user is editing the same rows.
Anyone seen this SSIS error when importing data? I have a 64bit quad processor with 8gb and am importing from Oracle 9 using 32bit DTExec.exe from the command line.
OnInformation,Myserver,MyDomainSQLAdmin,J001OracleDimExtract,{CEB7F874-7488-4DB2-87B9-28FC26E1EF9F},{1221B6EB-D90A-466E-9444-BA05DBC6AFD8},6/29/2006 10:58:08 AM,6/29/2006 10:58:08 AM,1074036748,0x,The buffer manager detected that the system was low on virtual memory, but was unable to swap out any buffers. 2 buffers were considered and 2 were locked. Either not enough memory is available to the pipeline because not enough is installed, other processes are using it, or too many buffers are locked.
Hi-I've been trying to install SS2K Hot Fix # 818095 for one of my clientsand it keeps terminating - the Log for the install contains an errormessage that reads "...dbmslpcn.dll is WRITE LOCKED".I stopped all but a few of the services on the box, but still can'tseem to get it installed.Any suggesions??Thanks in advance for any help on this issue, it's been a royal PITA!Pete
Details:MS SQL 2000 dual Intel 1.2 GHz processors.1 GB RAM2.1 GB dBDynamic Memory Managment.No other apps running on this server.First question:Since I have Dynamic Memory Managment setup, Is it usuall that thesqlsrv.exe process on the server steadily climbs and is in the 800 to900 MB range. There is only about 20 MB free. In theory this is howDMM can work, but do people really see it work this way.Second question:I had users complaining about lockups in the app I have to supportthat connects to this dB. At first I thought it was the large use ofmemory, but once I was able to see in Enterprise Manager that therewas process blocking several other processes. EM then locked up and Icouldn't get to the details of what the exact process was that wasdoing the blocking. After restarting SQL services things were fine.When I checked the logs there was nothing there about a hung process.The logs seemed very sparse. Why would there not be anything in thelogs about it. The logs actually seem very thin on any information.Thanks,T.
I would like to return the latest time stamp as well as the earliest time stamp out of a series of records.The key would be the same ID so i need a function or query that can search through each record and find the earliest time for that ID and the latest time.
ID LatestTime EarliestTime 1 05:00:00 02:00:30
I have achieved the latest time by using a RowNumber function and returning the latest record. The stickler is how to find the earliest record as well.
Code: CREATE TABLE [dbo].[DigiTracker]( [DigitrackID] [int] IDENTITY(1,1) NOT NULL, [contact_id] [int] NOT NULL,
[Code]....
-- not accurate b/c it returns 0 for all TimePerPageSec SELECT DATEDIFF(second,min(createDt),max(createDt)) AS TimePerPageSec FROM DigiTracker GROUP BY contact_id, ZinePageNumber time spent (in seconds) between each record
I want to know how long does each of the script piece take. So how can I keep the records of time spent and save them as a file or save them into a table?
Hi everyone:Using Sql Server SQL 8I'm trying to INSERT records into a "can software package" batchtable. I have a work-table that mimics the batch table. Aftermanipulating the records in the work-file I want to INSERT them intothe batch table.The problem is the batch table in the can software has a trigger onthe batch table which is going to force me to INSERT one record at atime. I've always been able to do an INSERT with no problem.The batch table has pretty basic columns:BatchIDBatchDateSeqNumberThese three fields are the key and then just some miscellaneouscolumns. Any easy way to loop thru my work-file to insert theserecords. Never done a loop in SQL so an example would be reallyreally appreciated. I have a sequence number so I was hoping to do aWhile loop but I really don't know enough about creating a loop tomake that call. Thanks in advance for any help.
I have a table with several datetime fields but they all list just the correct date. The time is always 12:00:00 AM. I don't have a field that records the actual time a record was created. I have a timestamp column, but it appears to get updated everytime the DB backs up. Is there a way using the date fields I have or otherwise, to determine the time a record was created?
We have a website that allows people to enter tasks and they are then given a stageID. ie 1 which is review for when they are first entered into our database. If they have not been reviewed in 5 minutes I want them to update automatically and move onto the next stage. I have tried using a stored procedure that adds the reocrd with a waitfor command but that doesn't work because it locks the connection ofcourse until it's finished the stored procedure which means the webpage doesn't come back for 5 minutes which we don't need. I'm asking if there is any other way I can do this without a waitfor command or somehow use it so that it doesn't hold the current connection.
CREATE TABLE GuestAccount ( Id_Guest smallint, SeqNo int IDENTITY(1,1), account money Null PRIMARY KEY(Id_Guest,SeqNo) ) Q? I want my SeqNo start from 1 for new Id_Guest is it possible ?
I am not sure how to go about doing this. I have a record that has a start time of 1 am and a stop time of 9pm (same day for simplicity) and I want to know how many hours during a peek time and how many were not.
For example, the application starts and inserts into the data base the start time of 1am and then the user stops the app at 9pm. Lets say the peek hours are 1pm to 7pm. I know i can do a date diff function to get how long the app ran for but how can I get the amount of hours it ran during the peek time? I know there has to be some mathematical solution to this but it is escaping me at the moment. I want to do this over many records so a a cte or pivot table is the end solution for performance.
This is a beginner's question so bear with me - I have a SSIS package that builds an Analysis Services fact table - depending on user input, this table is either re-built from scratch or any additional records since it was last run are created.
Where is the best place to store the time a package was last run - in a seperate table in the database or somewhere in the fact table?
I want to check a record in my table which has time ins and time outs feilds. I want to check on insertionof any new record that a new record should not be inserted on same timings and before 45 mins of timein and after 45 mins of timeout. How do i do it sql query ?
I'm writing a classic ASP application that records all logging of userlogins on our support site. The logging is a rolling window of how manypeople have logged in for a given month, i.e. tracked by a 'lastlogin'field so the tracking is done in a date range. So, for the month ofJanuary I would record lastlogin dates between January 1 and January31. My question is this...on the last day of the month (example beingJanauary)at 23:59:59PM I want to write the total number of users thathad a lastlogin date within the month of January and write that totalnumber to another table so I have a point-in-time figure for Januarylogins and how many users logged in in the month of January. How do Ido that? How can I have the sql server dynamically check the last dayof each month at 23:59:59PM and then run that query to obtain the totalnumbers users that logged in and then record that value to anothertable?? Do I use a SQL Job to do that?Any help would be greatly appreciated! Thanks!
I have the table with the similar set of records which mentioned below, find the time difference between two rows of record. By Using the MsgOut column i have to find time taken b/w PS & PV and some record doesnt have PV .
I am trying to pull the records which are being affected i.e, comparing the values and if not same then populating the record.
I am using the below condition in where clause however i am getting runt time error as "Conversion failure when converting date and/or time from character string"
Condition in Where clause:
cast(isNull(tab1.Col1,'') as datetime) <> cast(isNull(tab2.col1,'') as datetime)Â
I am trying to write a stored procedure that loops through the list of user tables, gets the record count for each one and write a record to an audit table with DATE, TABLENAME, RECORDCOUNT.I keep getting an error "Conversion failed when converting date and/or time from character string".Here is the script...
DECLARE @table nvarchar(500) DECLARE @sql nvarchar(520) DECLARE CursorSelect CURSOR FOR select table_name from INFORMATION_SCHEMA.tables where table_name not like 'sys%' order by table_name
I am using the desktop sqlexpress 2005 and I was experimenting with the account setting and I accidentally disabled my access. I am using windows authentication and there is no password, just the windows login name.
How can I reactivate the login for this connection. Any help is greatly appreciated.
I am writing in regard to this post: http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=52798 Which I found while searching for a best-practice way to implement record locking in my application. In the above referenced post the user asks “How can I tell if a row is locked?�, and the reason for asking is that the user wants to implement logic similar to this:
Select a row for editing. If the row has been locked by a different user, display the information as read only. Otherwise, lock the row and allow the user to edit (allow others to read).
My questions are exactly the same as the original poster of the above thread. I was surprised to see that the general response to the post was the user was taking a wrong approach and that sql server is unable to work as the user requested. I think the approach is both correct and desirable (I used it extensively as a foxpro programmer) and I would like further confirmation that sql server does not support it.
One of the things I don’t understand is the interaction between transactions and locks. Is it not possible to lock a row without initiating a transaction? Bottom line, my goal is this:
Select a row for editing. If the row has been locked by a different user, display the information as read only. Otherwise, lock the row and allow the user to edit (allow others to read).
