General :: Split Database - Multi-Users Causing Records To Lock
Apr 16, 2013
I've got a database in Access 2007 that keeps track of client data for work. It's been working fine for about a month, and suddenly today other users can't change any information because the records are suddenly locked when accessed from their accounts.
I've already checked that they can't update forms, tables, nothing.
I've checked the database properties, it defaults to shared with no locks.
I've checked the properties of my forms - no locks.
I've double checked the permissions to the folder that the database is in - no restrictions.
The database is split.
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Aug 5, 2015
I have designed a database which I intend to split for multi-users to access from one front end icon on a shared folder at work. I have designed a form bound to cmr record table and on it a subform to another table where cmrs activities will be saved. The form has buttons to and blank controls.
User can create a new activity entry by typing into the blank controls and pressing the save button which saves to the activity table. the edit button extracts a selected records details (selected on the subform) from the activity table and populates the blank field for a user to edit and then hit save to save changes. The delete button deletes a selected record from the activity table. I intend to have multi-users either accessing, viewing and a possibly editing the same customer at the same time. The simultaneous viewing is essential but the simultaneous editing, though not desired is inevitably going to occur.
What I would like to know is:
1. Can you lock an individual record in a table or does the whole table have to be locked. E.g If Colleague 1 is editing Cmr A's record in Table1 can he lock it so Colleague 2 can view and edit Cmr B's record in Table1
2.Can Colleague 1 access/read Cmr A's record in Table1 to retrieve details toe the form controls if Colleague 2 is viewing or editing Cmr A's record in Table1
3. If record lock is possible, how can I initiate it in my example code below.Edit activity record Code
Code:
Private Sub Edit_A_Click()
'Get Data to text box control
With Me.R_P_Data_P_Subfrm.Form
Me.txtrID = !rID
Me.txtrID.Tag = !rID
Me.txtrefNo = !refNo
Me.cmbrpc = !rPC
[code]....
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Apr 10, 2013
I have a split database consisting of an ACCDB backend helf on a shared drive, and a local ACCDR frontend distributed through email. I recently distributed a copy of the ACCDR to a user, and she says that the main menu opens fine, but when she clicks a button to open a form, the form opens but is completely blank. I've googled some possible causes for this (e.g. on Allen Brown's website) and none seem to be relevant, or would explain why this started happening all of a sudden. I can't reproduce this bug at all.
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Nov 13, 2013
I have a multiuser data entry form which on using somtimes gets inactive, means the button stop working and we have to close the form and open again to avoid.
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Jul 12, 2014
I've added a list box to my form that displays a table. This table is completely independent and gains it's data from an Append query. There is also a Delete query, which clears the table for a new set of data, and an Alter query which resets an AutoNumber column in the table (so that new data sets always start numbered at 1).
Here's the problem: Since I've added the listbox and set the RowSource to the table, whenever I run the Append query I receive the error: "The database engine could not lock table 'tblLineSheet' because it is already in use by another person or process." I've made sure to close the table, but to no avail I still get this error. Without the List Box I don't encounter this error.
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Dec 17, 2012
I have two separate database files, a front end with all my forms and a back end with all my tables. The backend is stored on a network drive, is there any way of being able to store the frontend on the drive with the backend? Users do not use the actual computer to store information or access files, everything is usually saved on the network drive. I have created a shortcut that launches the front end database in the read only kiosk mode.
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Nov 8, 2012
I have split the database, with the back-end residing on the server. Only 1 other person is working in Access right now; she's verifying the data. Today she's working directly in the back-end, could this be the problem. If it is, I'm going to have to create a front-end for her quickly.
My problem is this...I'm working on queries and forms so that the scientists who will ultimately be using this application, won't be able to go in and inadvertently change something in the tables set-up. When I'm in the back-end main data table, it says I have 2723 records.
When I create a front-end query to query all the records in that table, it says I have 2160 records.
The input form that I created with most of the same fields as the query (created BEFORE I created the query...I'll have it pull from the query now instead of directly from the table) also says we only have 2160 records.
Using Access 2010
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Feb 27, 2014
I split my database and put the BE on a shared network folder. The users can access and change data on the database fine as long as someone else isn't using it. If another person is logged on and using the database another person will be able to open the database but if the new user tries to click on a button or go anywhere besides the main menu it says there is already a user in the database and wont allow the user to go anywhere. How can I fix this?
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Aug 24, 2007
Ladies and Gentlemen...
I have had this in another Access forum ... without a resolution. I am pulling out what little hair I have left, so hopefully someone can help me.
I have created a program using MS Access that a small business will use to enter service contracts and invoices. The program was created in Access 2000, but converted nicely to Access 2007 which resides on the 3 brand new Dell computers that the business bought.
I did some research and determined that since 3 people would possibly be using the database at once, I needed to split the database. I did so using the wizard contained in Access. One of the computers acts as the "server" and houses the back-end of the database (in a "Public" folder that is shared to anyone on the network ... with all rights). All three computers have the front-end (forms, queries, reports, etc.) The front-ends all point to the shared "Public" folder on the "server" computer.
In each of the computers, the program will open and work properly. The problem comes when trying to access any of the input forms (that get data from the back-end). Only 2 (and sometimes 1) of the computers will open the form at the same time. If 2 are currently open and I try to open the third, it will sit and crank away as if it cannot find the file. It will not open. If I close one of the other forms, the third will open immediately with no hesitation.
At first I thought it could be a network bandwidth problem, but all are running at 50 - 100 Mbs and shouldn't have a problem opening a simple database file. I can't find anywhere that says Access would limit the number of users to 2; everywhere I look says that a split database should allow up to 10 users at once.
Again, the program works fine ... I just can't get it to open by 3 concurrent users.
Thanks again for any help you can give me.
Mike
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Sep 30, 2013
I have an project with a split database. The data is stored in the database_be.accdb
I want to know which users are connected tot this database.
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Nov 1, 2013
We have a database that is split. Every user has their own front end (installed via a .bat file so that the users always have a local copy of the most recent version), linked to a shared back end on a server. This seems stable and functional for us so far.
However, because our users are geographically separated, I don't actually know how many folks are using the database. I know the folks who contact me, but everyone in our company could use it if they wanted to.
For requesting funding, guiding future development, etc., I need to get some metrics:
Total number of unique users
Avg uses per day
Total number of simultaneous users (daily, weekly, and monthly maxes and mins)
What is the best way to get this info? Write user info and a timestamp to a table each time a front end is launched? Are there tools for monitoring this sort of information?
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Jan 12, 2013
I am the administrator for a 2010 Access Client Database that consists of many clients with their information and we have three users whom go in and edit-add information to this Database and it hasn't been a problem until two users have tried to edit the same client record at the same time and then we have had some issues...
So, not sure this is even possible, but can one prevent more than one user being on the same client record? Is there a way to have a message come and say this record is in use?
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May 27, 2013
I currently have the following setup for my database which is working as desired when only being used by one user at a time:
Front end: Access 2010 database in Citrix
Back end: SharePoint List
The problem is that only one user can open the Access Database at a time since this action locks the database for other potential users. The locking occurs due to this link to the back end SharePoint list.
allow multiple users to update the SharePoint list through the access database at the same time?
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Dec 2, 2014
I have a multiuser split db with this code on a listbox:
Code:
Private Sub lstsearch_DblClick(Cancel As Integer)
' The following is the variable definition for the error handler
On Error GoTo lstsearch_DblClick_Error
Dim ErrorForm As String
Dim ErrorControl As String
[Code] ....
The error function sends me an e-mail listing the error, user, form and sub. Ocasionally some users get error 3049 when running this sub. It is generally one user out of about 10 or so and the db keeps working fine for everyone else. I have reviewed the back end several times and I cannot find any obvious corruption signs. I have compacted and repaired it several times with very small changes is size.
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Feb 11, 2014
I have a terrible skill in this but I am doing my best to find ways. But I am running out of time in the development stage. I have the following form and table:
Tables:
Eqpt
EqptHistory
Forms:
frmEqpt
frmHistory
frmEqpt is the Mother form and frmHistory is the subform connected thru eqptID. Now what I want to do is count the records in the frmHistory and Locked the fields for editing. If it is new records, the fields will automatically unlock.
How do I do that because I can't find a way to count the fields with records and lock them.
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May 4, 2014
I have 4 users all with the same rights. What I want to do is lock each individual record created by each user from the other 3 users after they have been saved ( I am not referring to record locking/table locking while updating/creating ). i.e., They can all read each others created records BUT only update/modify their own created records. They all have individual passwords to log in.
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Jan 18, 2013
I am using access 2007 and my backend DB has a lock on it while every user has said they are not in the front and back end db's. Is there a way to remove the .laccdb lock? I need to modify my backend and this is holding me up from making any design changes.
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Dec 12, 2012
I want to lock archive records so that they can't be edited, however I want them available to users for viewing. So for example if the file is "closed" the record can not be changed.
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May 21, 2013
I haven't done any testing yet on splitting the database I'm working on but a question came up today about networking.
This database is going to be used by a few equipment operators to record machine readings on the manufacturing floor. There is a wireless network and we are in the process of confirming that the wireless signal reaches all the areas. The users will be using ruggedized windows tablets to enter the data.
The BE of the split database will reside on a network drive to ensure everyone that needs it will have access and it will be regularly backed up. etc.
Since there is alot of heavy machinery, there may be some spots where connectivity will be weak or non-existent while they are entering their readings.
The question is how will the runtime FE handle it if connectivity is temporarily interrupted?
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Apr 8, 2015
How to deploy a database project to others who are not in my organization and then have it split itself once it installs onto their network.
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Jan 22, 2014
i have created a database and just use the feature to split the database. i then set a password on the back end database. however now when i use a macro to open a form in the front end it won't open the form and just says incorrect password.
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Aug 7, 2013
I tried saving my split database to a flash drive so I could move it to a computer that is connected to the shared server but it did not go as I planned. The back end with the tables works fine, but when I try to open the Form on the front end it says it cannot be located. I just want to take all the files I have (Should only be 2 front/back ends) and move them onto a new computer.
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Feb 16, 2015
I have a split database with the back end on a sharedrive. I have the front end saved on my own drive and the same for my colleague.
When I view the front end version of my colleagues, I can see a records on there that she has input but I can't see them when I open my own copy of the front end plus when I view the back end I can't see the records there at all.
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Aug 4, 2013
The database: is for tracking computer issues (this part is complete), also I need to show the on call roster (mostly complete)... This will also have a time sheet that I need to be completed once a fortnight, however I would like it to auto populate the staff members logged information (I will get into that a little later).
Question 1: I do not want the users to log into the database, however I do want the database recognise who they are from their windows logon details.
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Nov 6, 2013
I am attempting to split an Access 2007 database. My company has two locations. From my location we are remote connecting into the server. While down there they are connecting directly. When I split the database, people in my location can use it fine. When people down there use it, they get a not valid path error.
This is because the network drives are mapped differently. I have been reading that the solution is to use the UNC for the back end file path.
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Dec 11, 2012
I am new in database design . I did a database by access 2010 which contain form and tables and i want to split it to backend and frontend and then make then in website
I need step in detalis to do that
How to split
How to put the backend on my site
How to make frontend in site
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