Guidance On Backend/Frontend
Apr 18, 2007
A simple personal database created by me is to be deployed on a home network having two PCs. I did splitting to FE and BE. The BE shows only tables. I would like to have the guidance of experts in this forum for the following:
1. Whether BE to be copied first in the host PC?
2. FE to be copied in the other PC?
3. After copying the Access DB how to link FE and BE between the two PCs?
4. Whether data entry, edit, search etc. possible from both the PCs?
5. If I test with dummy records, how do I delete dummy records, from BE or FE?
Shall be grateful for help.
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Jun 24, 2005
I have created a form that I want to share with other people. They will never add or change any of the data - they will only use the form as an information source. I need to be able to access the database to add/change information.
What is the best way to do this?
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Dec 10, 2004
Hi Experts,
I am trying to develop a multiuser database. I heard that in a multiuser setup the back end should be on the network and front end on the users machines. Could anyone please explain what is these back end front ends and how should I set it up.
And one more (silly) question... Do we really need MS Access to be installed in the users machines in order to do this?
Any help is appretiated..
Thanks,
binjos
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Dec 8, 2005
I have a database split with a frontend (FE) and backend (BE). Both reside on our network. I give a copy of the FE to all users. The FE is linked to itself so if I make a change to the network copy the next time a user opens theirs it tells them to close down and it recopies itself. This works really good. The problem we're having is people going and making a shortcut to the networked FE. So WHENEVER they open their FE everyone gets a message saying to close and recopy. The database is about 10mb but for someone across with a slow intranet connection it can take a bit to download. I'm looking ways to prevent users from accessing the networked FE. Can you simply hide it?
Thanks,
DT
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Jan 31, 2006
Hi!
I´ve just made a frontend backend solution with a db i Access2002.
I made this because my users 5 persons have a booking system wich they use at tehe same time.
But the db locks all the time... I thougt we would get rid of that problem now.
Is there something I have to check?
I have some lookup tables, can this cause this kind of trouble?
Jack
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Apr 2, 2007
I am evaluating a program for the use of a customer. It's a VB frontend attached to an Access database.
The backend has no relationships. No table in the backend even has a primary key.
My question: Is this scenario acceptable in any way?
I tend to think not, but am unsure whether the design of the frontend application establishes relationships "on the fly". Even if so, the fact that there are no primary keys makes me think I should dismiss this application out of hand.
Thanks
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Feb 3, 2008
At work i have a newtwork of computers each with a frontend of my database on it and 1 computer with the backend on it, once there's about 8-10 computers using it, it wont let anymore in it saying something like unable to open, exculsively opened etc. How to i get round this?
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Nov 18, 2012
I am very good at excel and can program macros. I am being asked to build something in access for my company, or at least manage a build. So here is my question... If we build it without both a front and back end, is it easier to take what you have and switch it to a front and back end? Also, when and why is it better?
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Nov 2, 2006
Hi,
I'm wondering about the following.
If I would have a backend table with the data kept in tables and a frontend database with forms and reports and queries etc. and linked tables to the backend db, what would be the right way to secure both.
In my situation I have salary information in some of the tables, which should not be wide open to the holy world. I also need to restrict the access of some queries and forms in the frontend database to different users. That means I need to set up a secured frontend database with different usergroups having different object permissions. So in that frontend database the Users Group and the Admin User do not have any permissions any more. Thats why I created a shortcut where I kept the database and workgroup information in the target. Every user needs to open the database via the shortcut.
Unfortunately I was not able to secure both the backend and the frontend database, because the linked tables in the frontend db are only pointing to a database not to a shortcut. Because the backend database is secured as well (no permission to Admin and Users any more) it can't be opened directly - only by shortcut.
Am I right that there is obviously no possibility to have a secured backend and frontend db via the Jet database engine and Access?
I hope somebody can answer my questions. At least I know that I can't do anything else and I did not something wrong ;)
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Jun 26, 2007
Wondering if anyone had tried this yet, and if so, encountered any problems. I have a few existing DB's in the office. Split with backend on server in mdb format. I am now using both 2003 and 2007... BUT.. Now that the runtime is out I would like to make my future updates in 2007. So the question is... Has anyone used a 2007 file format frontend with a 2000 to 2003 file format backend? I understand that the new field properties wouldn't be available in the mdb backend, but besides that, would they still link properly?Thanks
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Apr 12, 2005
Hello all
I have a "Read only" frontend and Backend as 2 different files on the LAN shared drive.
i have around 50 users logging on to this to view information (No editing allowed by the user).
I read on some of the previous forums that Multiuser frontend does not work that well. I want to know if this is true even if my users are in read only mode??? I have tried with 3 users and it works with out a hitch. i just want to be sure before i roll out this to the entire 50users.
thanks
soni
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Jun 22, 2006
Hi people,
Does anyone knows the difference between frontend and backend database? I look 4ward to hearing from any database expert.
black85
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May 28, 2014
I created a database a few years ago and it has been working well. This database is split.
Recently I started to update the front end based on user feedback and I am adding some queries.
I am noticing that sometimes I try to create a new query and Access tells me that the tables that are involved in the query are not related. Sure enough if I check in the front end, the table relationships are not the same as those in the back end and while the table relationships I need exist in the back end, they do not in the front end.
While the relationships were initially created in the unsplit database, it is possible that I added some of them later during past development/updating processes when the database was already split. This is the only reason I can think of for them to be different.
When I add a relationship in the back end (new table or bug fix) do I also need to add it to the front end if the database is split? if not, why would they be different? What kind of issues can this create?
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Jan 12, 2012
I have a backend-database on a network disk shared by 6 users. All users have a frontend client wich they use to administer the datebase. Everything in the frontend looks ok and they can query the latest data. However if I open up the backend database tables nothing has been updated since the middle of december. If i make a copy of the backend I can open it up and create new posts with ID-numbers that has already been taken by the frontend.
Ofcourse I have doublechecked that the clients are connected to the right backend file (there's only on backend file in the directory).
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Nov 22, 2007
Hello everyone,
I was looking for a great way to link and relink BackEnd to FrontEnd and I sort of found it.
Bob larson build a great extensive tool to autoupdate backend en master frontend. You can find his great post here: http://www.access-programmers.co.uk/forums/showthread.php?t=111132&highlight=back+end
Here is my problem or wish is more appropriate.
I just want to relink the backend and if the backend isnt found I want to select it using the filedialog.
Who can help me...
Perhaps you can Bob???
I included the file
I realy hope that you can help me guys.
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Mar 31, 2015
If I want to distribute a front end to connect with a MySQL back end ... do I need to set up the system DSN on each workstation that will be using the front end?
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Jul 17, 2012
If I have an MS Access frontend that connects to an MS Access backend, is there a way to hide/permission block the pathway to the backend's folder but still allow access via the frontend db?
Right now I can't dedicate a server to a more "secure" form of DB or anything like that so I'm stuck with MS Access for now. I just don't want someone looking at, say, a link table path and then navigating to that folder and getting access to backend information.
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Nov 5, 2007
Working on a database that tracks codes, descriptions etc.
One of the items they would like is a 'change' report.
On this report, they would like it too list 2 things. They would like it to list if any entries that refer to a expired edit type (determined by the end date field).
Then if the code was updated to a new edit type it would display this too.
So the report would look something like this.
If the code that refers to a expired edit type, and has no update it would say
code# removed <then list the edit type that expired>
or
If a new entry for that code was created with a new edit type, it would say something like
Code# Changed from <old edit type> to <new edit type>
Is this possible?
I'm not even sure how to visualize it, so hard time moving forward with it.
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Sep 25, 2005
I need to be pointed in the right direction if you don't mind. I understand underlying database structures pretty well, but I am not sure how to create a form in Access so the user can enter new data. I am tring to create a form based off of the classes table first and then go from there. I was hoping to be able to allow the end user the ability to enter all information from one form.
I have attached the relationship structure that I have setup but I am not sure where I need to go next. Should I create queries and then insert the queries to my form?
Thanks for help
Steve
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Dec 1, 2006
I have two tables in my database.
Table 1 contains telephone numbers and rates per minute
Table 2 also contains telephone numbers and rates per minute
I am trying to check the rates in one table against the other.
The problem I have is that the telephone numbers in each table are of differing lengths.
For example ......
Table 1 contains telephone number 01234 567890
Table 2 contains a rate for numbers starting 01234 5
I have split the numbers in Table 1 in to 0, 01, 0123, 01234, 012345, 0123456, 01234567, 012345678, 0123456789 and 01234567890 but I am stck on how I can now use this to match to data in Table 2.
In 'words' I would like the database to 'say' ...
0 in Table 1 - Is there a match in Table 2, if so what is the rate? If not then look for .....
01 in Table 1 - Is there a match in Table 2, if so what is the rate? If not then look for .....
012 in Table 1 - Is there a match in Table 2, if so what is the rate? If not then look for .....
0123 in Table 1 - Is there a match in Table 2, if so what is the rate? If not then look for .....
01234 in Table 1 - Is there a match in Table 2, if so what is the rate? If not then look for .....
012345 in Table 1 - Is there a match in Table 2, if so what is the rate? If not then look for .....
etc etc etc ....
The numbers in Table 2 are varying in length.
Can anyone provide guidance on database design and / or help with writing queries ?
Many thanks !
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Jun 20, 2006
Good Morning,
I am new to Access and I welcome expert guidance on the relationships of my database. The database will be used to track employee training and although I've enjoyed limited success so far I'm hoping that eventually I'll get it right.
The database has to do just a few things so it doesn't have to be very complicated. It basically has to store employee, training event, and completed training event information. The attachment shows the tables and their relationships.
The are basically two types of training that the database needs to store. The first is training that applies to everyone and the other is training that only applies to certain job specialties. These types of training are identified by the ProjectMandatoryCode and the JobCode respectively.
The ProjectMandatoryCode is a default value that is automatically entered everytime a new employee is entered into the database (EmployeeInfo table) and it is also a default value when a training event is entered into the (TrainingEventInfo table) that applies to everyone. The employee JobCode is a selection when a new employee is entered into the EmployeeInfo table.
When the user wants to enter a training event that is job specific, they are able to select a JobCode from a combo box/option group and this code is written to the record. Selecting one button from the option group writes a default value (ProjectMandatoryCode) to the TrainingEventInfo table while selecting the other button enables the combo box so that a specific JobCode can be entered against the event.
Everything works fine except... so far I've been unable to produce a report that lists every training event that pertains to the employee whether it be ProjectMandatoryCode or JobCode related. I can query and produce completed events or a list of what events are required but nothing that is complete. Ideally, I should be able to produce a complete training plan for the employee which shows all necessary events and where the employee has completed the task I should be able to show the DateCompleted.
This failure has led me to doubt my table relationships since all my efforts at various query joins have failed. Is there anyone who could enlighten me so that I could learn from this, complete this task, and apply this new knowledge to future databases? To the person with the answer, thank you in advance for your assistance. Respectfully,
Dale Gagnon
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Dec 11, 2007
Hey everyone,
I'm new to access, I have been using Excel for quite a while and I am familiar with VB and macros.
I have never been much of a book learner, mostly hands on, which means a lot of reverse engineering to figure out why/how things work.
I have a scenario, and found a DB that had some functionality that I liked and I had reverse engineered it to do a lot of what I want.
Where I need some guidance:
1. on my opening form (Clients) I would like to be able to type in Client Number and have it return the correct info.
2. in my Who Has It is there a way to do data validation (or dropdown box) I mean I only want them to be able to enter valid names not crazy stuff like MickeyMouse.
Thanks a bunch!
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Dec 28, 2005
Hi everyone,
First off sorry for jumping in and asking questions on my first post. I have been searching the net templates and answers and while it has got me so far I still cant find specifics I'm stuck on and would appreciate any help.
I have an access design project to do for uni. To give you some background I've done some VBA programming in excel and have a good grasp of office and windows but haven't really used access before.
I have got Ms Access Inside out (bit over my head) and Ms Access Step by Step and have been working through their tutorials which have helped my understanding of access but dont arnt really specific enough to my project (or maybe i'm missing something)
The Brief is as follows:
"You have been instructed to design and develop and information system to capture students module choices for the business school. The system will run on MS Access and be supported by programs written in visual basic. Spec is as follows:
The system should be designed so that students can automatically select their options for semester 1 and 2 from a screen which will indicate to them whether they have broken any of the following constraints:
-> choose 30 credits in both first and second semester
-> business 2 cannot be selected unless Business 1 is
-> Programming 2 cannot be selected unless programming 1 is
-> Decision making and Data analysis share topics so students cant do both
-> Bus Finance and Corp Finance share topics so students cant do both
There is a table with 7 module options for each semester and their credit weight, either 10 or 20.
The outline is deliberately vague, 20% of marks will be for supplementary features that will enhance the systems functionality and usability.
------------------
Based on the examples I have worked through, I see it like a basic ordering system:
3 tables
Customers (Students)
Products (Modules)
Orders (Chosen Modules)
I need a database that will let me input customer information (that I can do)
Then allow me to Create an order for the customer Using a form that lists the products available from the products table
When Creating the order, with the form, rules need to be enforced to ensure the order is valid (ie certain products are not chosen together, the products value adds up to 30 for semester 1 and 2).
Once the order is complete a report is generated to show the products ordered (modules chosen)
Is this the right way to look at the database design?
I see the module choice form as having all the modules listed and tick boxes, however the only order forms I have managed to find have drop downs, any pointers here?
Am I right in thinking it would be VBA that will allow me to set and enforce the rules on module selection? If so any pointers on how?
Is there a way to get VBA to validate the inputs on the order form in real time, eg grey out one selection if another is selected, not allow more module to be ticked than 30 credits. I guess the code can be looped to do this? or is it easier to check the inputs after ok is pressed then give a warning box if its incorrect.
Again apologies for coming in on my first post and asking a torrent of probably basic questions, but I have tried my books and the net and would appreciate any guidance
Kind Regards, tom999
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Oct 30, 2007
I'm kinda lost in here so I'd appreciate some help in pointing me in the right direction please. I've no doubt the answers are out there but I'm having trouble finding what I need, probably because I don't know how to frame my questions!
Basically the story is this - there are three guys covering various aspects of the business, they each visit three separate locations - all guys visit all locations. We have made a "big plan" that has 14 key deliverables in the locations as a "region" .
For each Key Deliverable there will be Actions, some Actions will be done in all locations, some might only be needed in one location. Each owner will describe the Action and link it to the Key Deliverable it supports.
What we want to do are things like
Take Location 1 and Guy A and show all the things he is doing to support Key Deliverable X.
or
Show all the Actions in Location 2 that are being done to deliver Key Deliverable Y by all Guys.
That sort of thing - progress reporting and identifying where we have nothing happening to support a Key Deliverable or too many actions in one Location etc
We have all our plans in Excel spreadsheets at the moment, each guy fills in a sheet and at present the idea is that we copy and paste it into the mother of all spreadsheets to present to the Gods - it's not happened yet because it's clumsy and well, it's my job to present it and I thought "there's gotta be a better way!" I can import the sheets into Access but then it all gets a little tricky and I run out of tallent.
OK so if you've read this far you're wondering if I have any idea what I'm talking about when it comes to Access! Well I am pretty much self taught and rusty but I can see that Access could help us get organised and
My limitations - I'm using standard Access 2007, I doubt corportate IT security would allow me to add in any useful plug ins or upgrades etc.
Am I using the right tools? I'm limited to MS Office really so I mean should I stick to Excel or carry on pursuing an Access solution?
Thanks for reading this far :-)
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Feb 13, 2008
Greetings Access Geniuses,
I am currently in the midst of conversation over at utteraccess.com about a large database project I am working on.
I will post the most recent updates here, but if you want to download the database for your own review, you'll have to go over to the other forum. By the way, this is NOT an advertisement. I am a real person with a real, significant, and immediate need of as much assistance as possible for this project.
Before I go on, a few things about me. Though I am in the legal profession, my technological background is very strong, including a high level of proficiency with MS Office apps with the exception of Access. I know my way around the program (the result of its homogeneity with the rest of Office), but have not made a real database in the past. I also do not know any programming languages.
I have recently indulged in an Access crash course of sorts, including some book and online study on things like planning, design, and normalization, but I am still having difficulty wrapping my head around making it work.
That said, the link to the other discussion is: [W W W DOT]utteraccess.[ADD DOT COM]/forums/showflat.php?Cat=&Number=1590364&page=0&view=collapsed&sb=5&o=&fpart=all&vc=1
Feel free to gloss over it to see how things have progressed. Below is a paste of my most recent substantive post. Any help anyone can give me is of great value to me and I really, really appreciate it.
_____________________
Hi Everyone,
Attached is the most updated version of my database project for your review. I have also attached a sample of the output we would like to have for each product. This sample is not based on actual data, but it clearly shows what we are trying to achieve via a form of some sort. More on this in a minute.
The following changes have been made to the DB:
-Changed tblTrustProspectusVersion to include the appropriate data, based on our business model.
-Added descriptions to all non-PK fields.
-Created relationships to illustrate how things fit together. Note that these are NOT the actual relationships, but are for illustrative purposes to help everyone here (including myself) further understand how things fit together.
Our Business:
I am part of my company's legal department. Our team handles a number of different things primarily associated with Securities and Exchange Commission (SEC). filings. We have two major product lines. Everything that happens with one in this DB happens with the other as well.
Each product within a product line has certain features and other necessary information we need to see when doing our filings (see the attached sample output). These features and necessities include, but are not limited to, various statuses, various numbers associated with the SEC, various important dates, etc.
In addition, each product has a certain "fund lineup" associated with it. These funds are made up of two components: the name of the fund (aka "portfolio") and the name of the subadvisor to that fund.
Futher, each of these funds is associated with a certain Trust. The SEC requires us to send prospectuses to clients based on these Trusts, which, as I mentioned, are comprised of the said funds.
Basically, we need to be able to select a product from a drop-down list and have all of the aforementioned information populate instantly.
Before I close, one question with respect to my "tblProductFeatures". Like I mentioned, each product has a certain set of features associated with it. Each feature has a certain fee associated with it. These features come in four basic categories: Living Benefits + fees, Death Benefits + fees; Maintenance fees (just short list of the possible fees); and 12b-1 fees (another short list of fees).
Since the features can be so easily broken down, should I add them to their own tables?
Please consider this as you give your advice on how to acheive my desired goal.
I hope this makes sense.
And again, thank you all so very much for your help thus far.
Best,
Gilbert
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Jun 6, 2005
Hi im in the process of starting a small project to be used at work. Basically I want an Access DB which will be used by about a dozen people, accessing it over a network drive. I want them to be able to do the standard create/edit/delete records and wotnot in different tables of the DB and also want some reports and search functions.
In the future I want room to make more advanced things in it.
Would I be best to do this all in Access with forms and reports, or maybe use VB for a frontend or even something else?
Dont have much experience with Access outside of the standard DB records stuff, will security and multi access be a problem with Access?
cheers
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