How To Lock Record On Select
May 29, 2008hi
I want to lock the record on select query so that no other user can update this record, is it possible and i want to unlock record when use stop view this record.
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How Can I Lock A Record
Sep 19, 2007hi all iam working on a ticketing application i want to avoid two users to book the same ticket the requirement is as follows
1. the system should show all the available tickets which is not yet booked
2.when two users book the ticket at the same time time it should not allow the two persons to update at the same tme
the main aim is to avoid data concurency
how can i get this done
How To Lock Record In SQL 7.0?
Oct 3, 2000When I connect to SQL to select(or insert,update) a record in MyTable, I want to restrict nobody can access it. How can I do? Can you give me an example about (or documentation)?
Thanks in advance.
I Want To Lock One Record
Nov 11, 2004Please help! I have a VB application used by multiple users. MS SQL 2000 backend.
When a user opens a record for editing, it want to mark the record as locked so that if other users try to open this record, it will not be available.
Currently, I'm using a programmatic method that basically sets a field 'lock" to 1 if the record is in use and 0 if not in use. But this has the side affact of locking the record if the user reboots their workstation. In addition, I don't believe that this is the best method and approach to achieve my goal.
Thanks very much for your help in advance. All ideas are welcome.
crownlog
Record Lock
Jan 2, 2004hi,
using VB 6.0, sql server 7.0, ADO 2.5
i will tell my requirement. i have a tran. window there i will select a chart number of a patient and do some changes and will go to next window for doing some other modification for the same patient, and again will go to other window. by this time don't allow other users to access the same patient chart number. should get a message like record locked by some other user.
please help me to solve this issue
prince
Record Lock
Mar 10, 2004i have an app that insert multiple rows into a table in sql using insert statments. i use a begin trans and commit trans.
here is the setup i have a table that contains 100 rows. i insert another 25 rows. in another app i try to edit a record in that table (a record from the first block of 100) i can't edit the record because my first app has not done its commit trans yet. i don't understand why i can't edit a record that was already in the table. i'm not trying to edit one of my newly inserted records.
please advise,
Thanks
Thomas
Record Lock - When Is It Started ?
Jul 9, 2006Suppose there is a SQL Server table with a trigger behind it.
Suppose a client VB (or VBA) program is trying to update a certain record in that table, say record #1, by issuing the update statement:
RS.update
My Question:
When is SQL Server starting to lock that record (record #1) ?
Right after the RS.update is issued OR after the trigger has been executed ?
________________________________
Thanks in advance.
Lock Record For Processing
May 27, 2008I run a query "BEGIN select * from NT_ins_params_S WITH (HOLDLOCK,ROWLOCK) where...... and load the result into an ADO object. I need to lock the row untill I am done processing and I thought that (HOLDLOCK,ROWLOCK) will do the job but it does not. What is the correct way for locking?
I am using sql 2000 server and interfacing with it using a program written in C#
Can I Lock The Record Which I Am Reading ?
Aug 30, 2005Can I lock the record which I am selecting ?
I want this lock is row level,not transaction level.
How to do it,please tell me.
Check For Record Lock
Apr 16, 2007Hi,
Any one can help me with the following requirement:-
. Checking the record if its lock before issues any statement
Any sample will be helpful
Best Regards
Sql Server Record Lock
Oct 3, 2007
I have a Sql Express Database that I want to access from a remote tablet application. When the remote user accesses a record (which is a form + ink), I can't have anyone else accessing that record and drawing ink on the record's form, unitl the first user is done. How do I prevent access to that record in a user friendly way until the remote user is done and has updated his changes to the database?
thanks!
Using An Open SQLTransaction In Order To Lock A Record...
Jun 2, 2005Hello,I am trying to begin a transaction is ASP.NET that acts as a temporary lock on a record so that another web user can not gain access to that row of information. My problem is that when I begin the transaction, if the user then closes out of the browser completely, the temporary lock that is put on my table from the transaction does not go away. Further, I have no idea if it will or if there is a time range you can specifiy to do so.What I am wondering is if anyone has ever tried this before, or does anyone have a definite answer to the following question, "If I begin a transaction, and then I do NOT rollback or committ that transaction, will it ever rollback on its own and if so where can I set this time frame?"Thanks in advance for any help.
View 3 Replies View RelatedExclusive Lock During A SELECT
Aug 9, 2000Anybody know how a SELECT statement can generate an exclusive lock on a table ?
I always thought that SELECT's take out shared locks. Is this something to do with temporary tables generated by ORDER BY's and DISTINCT ?
Rogue SQL below (from Site Server).
SELECT A.i_Dsid, A.i_Aid, A.vc_Val, A.i_Val, A.dt_Val, A.img_Val FROM Object_Attributes A, ( SELECT DISTINCT L.i_Dsid FROM Object_Lookup L , Object_Attributes OA2 (index = IND_vc_Aid) WHERE ((( L.i_ObjectClass = 9999 )) AND ( OA2.vc_Val LIKE ( '999999999.9999999%' ) AND OA2.i_Aid = 99)) AND (L.i_Container_Dsid = 99) AND ( OA2.i_Dsid = L.i_Dsid )) AS B WHERE B.i_Dsid = A.i_Dsid AND A.i_Aid NOT IN( 1, 2, 3, 4, 5 ) ORDER BY A.i_Dsid, A.i_Aid
Can anybody suggest a workaround ? Thanks.
How To Lock A Row When Perform SELECT Statement
Apr 17, 2004Hi,
i would like to know how to lock a table from other to view when select statement..can anyone help me with that???
i tried
SELECT * FROM IMIS_FRAMEWORK_RUNNING_NUMBER with (HOLDLOCK,ROWLOCK)
WHERE running_type=@type;
but i m still able to see my row when i perform my SELECT STATEMENT from other query analyser..
Please help me with this..thank you
Deadlock -select With Exclusive Lock
May 12, 2008Hi ,
I have some issues with deadlock.I am getting deadlock becuase of two
select on same table. The sql server log is like this ,
Select statements should have always shared lock.I am not getting why
its doing exclusive lock and creating deadlock.
5/6/2008 12:38 spid4s Unknown Deadlock encountered €¦. Printing
deadlock information
5/6/2008 12:38 spid4s Unknown Wait-for graph
5/6/2008 12:38 spid4s Unknown Log Viewer could not read information
for this log entry. Cause: Data is Null. This method or property
cannot be called on Null values.. Content:
5/6/2008 12:38 spid4s Unknown Node:1
5/6/2008 12:38 spid4s Unknown KEY: 9:72057594050117632 (8d036f07c58f)
CleanCnt:3 Mode Flags: 0×0
5/6/2008 12:38 spid4s Unknown Grant List 3:
5/6/2008 12:38 spid4s Unknown Owner:0×12E9F160 Mode: S Flg:0×0 Ref:1
Life:00000001 SPID:68 ECID:0 XactLockInfo: 0×353D1C54
5/6/2008 12:38 spid4s Unknown SPID: 68 ECID: 0 Statement Type: SELECT
Line #: 4
5/6/2008 12:38 spid4s Unknown Input Buf: Language Event: (@actDefId
nvarchar(36)@stateList varchar(1)@stateList1 varchar(1)@procRelObjType
smallint@procRelObjIdList varchar(36))
5/6/2008 12:38 spid4s Unknown Requested By:
5/6/2008 12:38 spid4s Unknown ResType:LockOwner Stype:€™OR€™Xdes:
0×2FBB67F0 Mode: X SPID:112 BatchID:0 ECID:0 TaskProxy0×0792E378)
Value:0×38baa20 Cost0/11888)
5/6/2008 12:38 spid4s Unknown Log Viewer could not read information
for this log entry. Cause: Data is Null. This method or property
cannot be called on Null values.. Content:
5/6/2008 12:38 spid4s Unknown Node:2
5/6/2008 12:38 spid4s Unknown KEY: 9:72057594049986560 (6f02e1cd37c3)
CleanCnt:3 Mode:X Flags: 0×0
5/6/2008 12:38 spid4s Unknown Wait List:
5/6/2008 12:38 spid4s Unknown Owner:0×12396EE0 Mode: S Flg:0×2 Ref:1
Life:00000000 SPID:90 ECID:0 XactLockInfo: 0×0AA8178C
5/6/2008 12:38 spid4s Unknown SPID: 90 ECID: 0 Statement Type: SELECT
Line #: 4
5/6/2008 12:38 spid4s Unknown Input Buf: Language Event: (@actDefId
nvarchar(36)@stateList varchar(1)@stateList1 varchar(1)@procRelObjType
smallint@procRelObjIdList varchar(36))
5/6/2008 12:38 spid4s Unknown Requested By:
5/6/2008 12:38 spid4s Unknown ResType:LockOwner Stype:€™OR€™Xdes:
0×353D1C30 Mode: S SPID:68 BatchID:0 ECID:0 TaskProxy0×13B3E378)
Value:0×12e9e780 Cost0/6164)
5/6/2008 12:38 spid4s Unknown Log Viewer could not read information
for this log entry. Cause: Data is Null. This method or property
cannot be called on Null values.. Content:
If you have any idea regarding this please let me know ASAP.
Thanks in advance .
Error: A Deadlock Was Detected While Trying To Lock Variable X For Read Access. A Lock Could Not Be Acquired After 16 Attempts
Feb 2, 2007I 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
Row Lock Versus Page Lock In SQL 2000.
Apr 7, 2004Hi
We are facing an acute situation in our web-application. Technology is ASP.NEt/VB.NET, SQL Server 2000.
Consider a scenario in which User 1 is clicking on a button which calls a SQL stored procedure. This procedure selects Group A of records of Database Page1.
At the same time if User 2 also clicks the same button which calls same SQL stored procedure. This procedure selects Group B of records of Database Page1.
So, its the same Page1 but different sets of records. At this moment, both the calls have shared locked on the Page1 inside the procedure.
Now, in call 1, inside the procedure after selecting Group A of records, the next statement is and update to those records. As soon as update statement executes, SQL Server throws a deadlock exception as follows :
Transaction (Process ID 78) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction
We are able to understand why its happening. Its because, Group A and Group B of records are on the same Page1. But both the users have shared lock on the Page1. So, no one gets the exclusive lock in records for update, even though, the records are different.
How can I resolve this issue? How can I get lock on wanted rows instead of entire page?
Please advice. Thanks a bunch.
Pankaj
Can I Use SELECT Statement To Select First 100 Record????
Apr 21, 1999I would like to exec a select statement in VB/C++ to return first 100 records? What is the SQL statement should be?
Thanks,
Sam
ERROR: A Variable May Only Be Added Once To Either The Read Lock List Or The Write Lock List.
May 22, 2006Hi,
I have set of 2 DTS packages, one of which calls the other by forming a command-line (dtexec) using a Execute Process task.
From the parent package-> Execute Process Task->
dtsexec /F etc... /<pkg variable> = "servername"
Each of the parent and the called package have a variable: "User::DWServerSQLInstance" which is mapped to the SQL server connection manager server name property using an expression. The outer package has the above variable and so does the inner called package (which gets assigned through the command line from the outerpackage call to inner)
I "sometimes" get the following error:
OnError,I4,TESTDOMAdministrator,ACDWAggregation,{A1F8E43F-15F1-4685-8C18-6866AB31E62B},{77B2F3C7-6756-46EB-8C01-D880598FB4B3},5/22/2006 5:10:28 PM,5/22/2006 5:10:28 PM,-1073659822,0x,The variable "User::DWServerSQLInstance" is already on the read list. A variable may only be added once to either the read lock list or the write lock list.
Help would be appreciated!
I have seen other posts on this but, not able to relate the solution to my scenario.
Select One Record Only
Nov 14, 2001Hi
Here is my example: I have the following table
ID Name Phone
--- ---- -----
1 John 1234567
1 John H.
2 Dave 9876543
2 Dave Smith
I want to select only one record of each ID, the output should be
ID Name Phone
--- ---- -----
1 John 1234567
2 Dave 9876543
It doesn't matter which record to select, but I need just a single complete record. I can't use select distinct ID because it will not show the other fieldnames.
Thanks
Trying To Select Last Record...
Nov 8, 2004I have a sql query that looks for values in a few different databases....
is there a way to select the last record in the table b/c I am pulling the hours worked on jobs and one person may have 3 job titles but i want it to show the balance of hours under the most recent job... Instead all the jobs are showing the same value even though only one of them had those hours under it. I think a way to get around this is to select the last value b/c that is under the job title most recently worked and they are in order by timesheets which can be ordered by date...any ideas?
Select One Record
Sep 18, 2013I have view with Patients name and Appointment table where I save those patients. How to create store procedure if I would like to select one patient record based on Patient_Id value?
View 3 Replies View RelatedUsing TOP To Select The 2nd Highest Record
Jun 19, 2007Hai frendz,
I am having a table named Employee(int EID, float Salary)...
Now I want to select the highest salary in the table and the query is-
"select top 1 EID, Salary from Employee ORDER BY Salary DESC"
Now I need to write a query which selects the second highest salary.
So how to achieve this?..
thanx
Select Only If There's A Same Record In The Table
Apr 26, 2005i have two tables A and B. relation is one to many for A. i want to select from A only if there are more than two records of A in table B and also checking some condition in table B. if the question's not very clear please let me know.
View 1 Replies View RelatedSelect Date Record
Feb 18, 2006how to select record from the table where the data between a range. example between 2/16/2005 and 12/16/2005. the data record in the table formated like this ( 2/16/2005 11:44:38 PM). help me with some sql code, thanks
View 2 Replies View RelatedHow To Select First Record With Out Using Rowcount
Mar 20, 2002Hi,
I need to select first record from a table.
This can be comfortably achieved by usibg set rowcount 1.
I need to do this with out using rowcount.
This is urgent.
Thanks
Krishna
Select Next And Previous Record
Aug 28, 2001Hi!
I need to select a spesific record using the recordkey and then select the previous and the next record as well. (which leaves me with a recordset containing three records)
Is this possible?
How Can I Select Nth Record In A Table.
Nov 7, 2001hi friends,
I am having a table with student marks in that i need to select a student who is the 5 th rank based on total marks obtained by the student.how can write sql for that.
name, totmarks
-----------------
kumar 145
ravi 300
jude 189
geeetha 320
rajesh 251
guru 190
ramesh 99
----------------------
i am having records like this.pl help me. thank u
regards
raj
How To Select Record Only In One Table?
Feb 14, 2006Hello, everyone:
I have two tables like:
Table A
IDCodeANumA
1D1289
2C4300
3C9409
Table B
IDCOdeBNumB
1D3266
2C4300
3C7101
How to find out the records that is in Table A not in Table B, and in Table B not in Table A? That means C4/300 should not be selected.
Thanks
ZYT
How To Select One Record Many Times?
Sep 14, 2006The developers of frond end ask to select only one row from one table, but many times, such as 10. That means the output has 10 rows and same.
Any suggestion will be appreciated.
ZYT
Select Most Recent Record
Dec 21, 2006Every hour we capture some values from our factory (position of pumps, valves, ...) in our sql server 2000 db.
Normally 1 record is added to the db.
00:00:00
01:00:00
02:00:00
...
21:00:00
22:00:00
23:00:00
All of these values are displayed in an Excel sheet. One sheet contains all the data from one month.
I noticed a problem last week when 2 records were added: first one at 19:00:00 and the second one at 19:00:01
We only want to keep the most recent record (19:00:01) in a situation like this but I can't seem to work out an SQL-statement :o
This is what we have know. It used to work fine untill we had 2 record being added instead of one.
SELECT TimeOfCapture, Value1, Value2, Value3
FROM FactoryTable
WHERE (MONTH(TimeOfCapture) = MONTH(GETDATE())) AND (YEAR(TimeOfCapture) = YEAR(GETDATE()))
SELECT TOP 2 From Each Details Record
Apr 24, 2007Hi everyone,
I am having a header table and details table and I want to display first 2 records against each header from details, whatever number of records are there in details against each header.
Example :
=======
Details table is as follows
HeaderID DetailsID
1 1
1 2
1 3
2 4
3 5
3 6
3 7
3 8
output should be:
TransDate SupplierName HeaderID DetailsID
1/1/2000 abc 1 1
1/1/2000 dsds 1 2
2/3/2003 fgd 2 4
2/4/2005 sdsd 3 5
1/1/2006 fgfdg 3 6
I am using the following query
SELECT H.TransDate, H.SupplierName, D.DetailsID FROM
Header H, Details D
WHERE H.HeaderID = D.DetailsID
AND D.DetailsID IN (SELECT TOP 2 DetailsID FROM Details WHERE HeaderID = H.HeaderID)
As I am dealing with very huge data it is taking very long time to execute.
Is there any better way to accomplish the task?
Thanks.
Riyaz
How To Select Earliest Record
Mar 17, 2012im trying to get the earliest record. data is below
note_id/ doc_received_date/ bankruptcy_date/ sp_recorded_date
2332/ 20090106<---- / 20081219/ 20090106
2332/ 20090323/ 20081219/ 20090323
2332/ 20090413/ 20081219/ 20090413
2332/ 20090507/ 20081219/ 20090507
because the bankruptcy_date date are all equal i would need to pull one record with the earliest date from the doc_received_date. The date with the arrow is the record i want. So basically i would like to show this result
note_id/ doc_received_date/ bankruptcy_date/ sp_recorded_date
2332 20090106 20081219 20090106