Database - Replacement For Ms Access Db For Multi-LAN User Purpose?
Apr 27, 2012
I have been using access for my applications from over 4 years now. I realize its time to move on now and i need suggestions for a new database. Here are my requirements :should be able to connect it with Vb.net windows form frontend GUI - all database functions such as add/delete/edit/update will be done through the vb.net front-end only.Should be able to place the db on LAN and each client on the LAN can then access the centrally stored db through their individual front-ends.At the most 5-6 users will be reading/writing to the database at the same time , so the database should not crash or slow down Since i come from MS access background, i would like something thats similar to it so that i can learn and adapt to it quickly.Not very important, but i think its worth mentioning. This db will be the main central db for my .net application.My .net application will also be interacting with quickbooks and magento via some apis but ultimately all this data will go to the central db. So just curious, will there be any compataibility issues with the database that you suggest Should handle about 10 tables and around 10k records in each table Should be secure - just that i should be able to lock it up or anyhow prevent it being accessed from anywhere else other than the vb.net front-end.
Lastly, I would prefer it to be free to use if possible but not essential. I realize there are some topics like mysql vs sqllite and on databases, but pls understand i need suggestions for one that will be apt for the purposes i have listed above.
Edit : Just curious - Would i pushing the limits if i still stick to access - i understand access won't be good for multi-user access but i guess 5 users is not much ?
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Jun 22, 2012
m currently learning vb.net. I have a program that replaces text in files but right now it only does it with one single file. I wan
Dim myfilein As String = Application.StartupPath + "\website1\website1.html"
If IO.File.Exists(myfilein) Then
[code].....
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Feb 19, 2009
I need to create a multi user VB.Net application that connects to Access 2007 and has 2 forms. How do I go about it?
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May 11, 2011
How do I make a multi user database?
Give me the logic, how do I achieve it?
For example, what file should the database be, where should I put the database(I prefer on my server), how do I encrypt the database.
Can I make it in columns? Username column and password column? My application then finds if any username match to the username inputted by user in my UsernameTextbox.Text then see if the inputted username and the password from PasswordTextBox.Text matches.
For now I'm using the If statement for both username and password. I have to write the same code again again for new users.
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Jan 28, 2011
i just want some opinnion or suggestions regarding database softwares. we are going to develop a system for 20 or less users, i am planning to use MYSQL community server as our database to lessen the budget for that system, i just want to know if it is ok to use that version.is there a big differece between mysql community server, enterprise server and MS SQL Server in terms of handling data i.e security, speed, etc...
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Dec 7, 2009
how to make an application with a multiple user.
language: VB
resource: Visual Studio 2008 Pro(90-day trial)
Sql express (the packages when u download the VS 2008)
scenario: i will make database located in a server (LAN) and a multiple client that can access the server database to add,modify,delete records.Im not aware that building a multi-user application database is different from a normal one user application database. T_T.i read some guide and other walkthrough on building a database but it became confusing when it doesnt my requirements. coz when i try to open my database(.mdf) to connect from other client (in another station) it says its currently in use and connot connect to it. err. @_@..
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Apr 7, 2011
Our engineers use an application developed internally to perform risk assessments at a customers site. Sometimes on larger jobs a group of engineers will all carry out risk assessments together and will all need access to a single database file to all work on at the same time.
[Code]...
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May 26, 2012
there is a database, containing a table with personnel. in the personnel table there are names and ID'sthere is a second table departemens, containing the names of departements and their ID's.in the third table it says which departement ID and which personnel ID are to be linked,
example
the employee called ruben has an ID 5
the employee called kevin has an ID 10
[code].....
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Apr 5, 2010
i have a database created in access showing in multi text-boxes in visual basic 2008 express edition. the database is showing music information and sales (tune name, artist, sales, and year issued) there are a few processes i want to do but can not work out the coding.1. display the top ten selling tunes in a particular year in order ( the year needs to be selected from a list box and displayed in a list box)
2.display the total sales in a particular year ( year selected from a list box)3. display the tune with the greatest sales in a particular year ( year selected from a list box)
[Code]...
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Sep 3, 2010
The application reads information similar to a DXF file. For purposes of discussion, the data consists of lines, those lines have endpoints, x1,y1,x2,y2. Within the file those lines create "paths", in other words, they are connected. There can be many separate paths within a single file. However in the original file, the geometry is not in any particular order, the paths are not indicated.
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Apr 6, 2011
How to create a delete in used to delete my sql database from different database without decalre one by one in vb applcation
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May 29, 2009
I have created an access database which i want to search with vb.net, I tried a few thing but it didnt work as desired.
Firstly the program is suppose to display items in the database base on the criteria selected by the user. what i've succefssfully done so far is I've added a datagrid 2 combobox, 1 (searchcbo) with the columns in the database and the other (searchcbo1) will autoload the items under the column selected in and a button (searchbtn) but i have no clue of the code to put in the button. i also tried the fill method but that didnt work as i wanted to. ultimately i want a combobox with the list of columns and a textbox to enter criteria and of course a search button.
The searchbtn should act as the "WHERE" sql command, e.g. SELECT EmployeeNumber, Firstname, LastName, Phone, Location....etc FROM CallLog WHERE searchcbo.text = searchcbo1.text And display the results in the datagrid.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'CallLogDataSet.CallLog' table. You can move, or remove it, as needed.
Me.CallLogTableAdapter.Fill(Me.CallLogDataSet.CallLog)
[CODE]....................
Attached image(s)
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Jan 25, 2012
My problem is I need to develop a sales application to be used on 5 computers. The database needs to stay on a main computer and other computers should connect with that over LAN.I donot want to use SQL Server as it is too complicated to give permissions, setting up firewalls etc. for the end user.Is that any type of database that could serve my purpose, without giving sharing violation error?
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Aug 26, 2009
I am designing a fairly small application to manage a waiting area for a clinical department. There will be a receptionist who books appointments and updates exisiting appointments to say that a patient has "Arrived". In seperate rooms will be nurses who call patients who have "Arrived" and update the appointment as "In Session" and finally as "Discharged". The appointments are viewed in a flexgrid with nurses across the top and time down the left, patient names are displayed at the relevant times and the cells are shaded a colour to represent the current appointment status ("Booked", "Arrived", "In Session" and "Discharged").
I am using SQL Server as the back-end and Visual Basic 6 (I know) as my front-end.I have been told that there will be 2 or 3 nurses plus the receptionist logged in to the system but I would like to cater for growth.My question is what is the best mechanism to use in order to reflect the status change made by one user on the screens of the other users currently logged in?
I have been thinking about using a timer to refresh the data at a set interval but I do not want to keep hitting the server excessively (although what is considered excessive? we would be talking about a call for data every 60 secs per user). Plus the server could be serving data for many other applications so this is another consideration.Alternatively I have been thinking about sending some kind of message via Winsock to the other users notifying them of data changes as they happen. I don't have a lot of experience with this and am concerned about clients not receiving messages and users seeing old data. It also seems strange to me that once the days appointments have been retrieved from the database that "in theory" a client could go the whole day without having to query the database again to pick up changes - kind of scary.Some information on the data:We would probably be looking at around 100 appointments per day We capture patient name, date of birth, date and time of appointment and appointment status.What is the standard approach / best practice for this kind of scenario?
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Mar 6, 2009
I am new in programming and I am using VB2005 and I can user either SQL2005 or MS access database.Here my scenario:I have created a project where the user can add a new record, (Support Desk) there are times when a new record is added, it may need a backup (Pictures, Document)to be included in regards the problem.
I need to know if anyone has some sample code on how to attached any type pf file (jpeg, BMP, doc, txt, PDF, excel) and be able to save it to the database.
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Feb 11, 2009
The app i am working on is for creating theme for the iPod touch... It has to deal with LOTS of images (100's potentially) There will be the set of default images, and then the user created replacement images. I started loading all the defaults into a resx file... thinking then I could just pull them out. now that I started setting the default, this sucks! lol the app will do this, on load it will set all the images (variables) to the resx images then when a theme is loaded, it will replace the default with the user image (if the user img exists) otherwise, the default stays. Then the "screen" is drawn to show the user. so, here is just the images to build the wallpaper, dock, and status bar...
[Code]...
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Dec 21, 2011
add user to access database but it's doesn't work the problem here
SavInto.ExecuteNonQuery()
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Apr 4, 2011
i want to allow user to select or find access database file when the software is executed/opened for the first time. after user selects the file and as he clicks open the software shows the full path of the file and then stores it with the provider and datasource in a txt file for future use.
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Mar 11, 2011
I have a program which I am securing with a Username and Password box, in which the user enters their credentials. In the database, the username is a number field (VB would not accept this as a string and was looking for it as Int32). And the password is a text field. I have the form linked to the database by an OleDbConnection with a DataAdapter (DaUser) and DataSet (DsUser). I am using a datarow which I have declared at the top of my code i.e. Public drUser As DataRow. The problem arises when the user enters their username and password.
The following code searches the primary key row of the database (Username)
drUser = DsUser.Tables("User").Rows.Find(txtUsername.Text)
When the Username entered does not exist, I'm getting this error when trying to display on the form the users email:
NullReferenceException was unhandled - Object reference not set to an instance of an object.
I've tried both if statements and try/catch to basically say if the Username doesn't exist... display an error message etc.
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Jul 10, 2009
My aim is to try to add a new user to a access database. Im doing this using from a form named frmRegister. It seems like the code is working perfectly, and I get no expectations that indicate if any errors occurred. However, the user doesn't get added to the database.
The code I'm using is:
Public Class Register
Dim connectionString As String
Dim connection As OleDbConnection
Dim OLEDBAdapter As New OleDbDataAdapter
Dim OLE As String
[Code] .....
(Files too large for attaching here)
Rar format - [URL]
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Sep 29, 2009
I have decided to quit using Access and trying my hand a VB.I am wanting to create a database with Forms for entering Address's.
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Mar 20, 2011
I need help with the code to make it so when a form loads it will check the Access database for the user and if that user is present, then it will load their selections. Otherwise, if no user is present it will add a new row to the database and display nothing.
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May 29, 2010
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and SettingsKashifDesktopDesktop itemsvalid.mdb;")
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Sep 3, 2008
I'm writing a form that get some informations from a database to manage the User Access Level.The way i do that is to Fill a Dataset by using a DataAdapter and the Bind some controls to the Dataset.The controls i binding are a ListBox, a Textbox, and five Checkboxes.All are fine with this controls. I can delete values and update values, i can choose a record from my ListBox and the values of this record to be desplayed on the othrer binded controls and so on.
[Code]...
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May 8, 2009
Not sure if this is the right Forum to post this question. If not guide me where to post... I have an Access database that I would like to be able to share with Multiple user cuncurently... I have seen it is being done but I am not sure how? Or may be I should be using SQL Express.
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Dec 3, 2009
I've been working on an application for awhile that, basically, allows the viewing and printing of a maintenance database. It allows the user to view basic information for the object and then view the maintenance history. My approach for the maintenance history is simply to have unique tables per object since a history has to be kept for each, however, I'm running into a problem in the application that allows the user to view the general information from one DB and the Maintenance history from the other DB.
Say you have Object ID BG1. I can enter the object ID into a search field, pull the data from the general DB and display the data, but I also need it to pull the information from the maintenance history and display. If maintenance history for this object is not found, then create a new table within the DB, fill the columns with the required fields and allow for the user to edit the history.
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Apr 17, 2011
I have a form with 5 fields(inputs). When I entered data in the form and click submit, the data is entered into an Access 2007 Database(Table). All the set up (connection) is working because the data table is getting populated with the user info. However, I also need to search the database by entering a name in the name text box and clicking a button.
This is suppose to populated all the fields with information from the data base if the user exist. The search part is not working. I have no more hair to pull. :) Here is the code:
[Code]...
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Oct 28, 2009
I want to take my access database which i used in my project on visual studio2008 backup by selecting the local drive of my computer at the time of backup i choose the drive & there were i taken the backup i restore my database. Is is possible to take backup atomatically when i close my application.
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Oct 19, 2009
Suppose i have made a single user program that receives its data from a database on a SQL server. What things do I have to change to the program to make it a multi user program while preserving data integrity?
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Jul 21, 2011
I have a system where I would like to show a warning to a user if there try and edit a record that is currently been edited. If this is the case the user will not be able to save the record but only view it.I have an idea of using some kind of class to monitor the activity of records been edited etc but this seams a little over kill. My other concern is that what if the browser crashes or there shut their computer down on how this will effect the state of the page.
Another thought was to use last updated time stamp but this also looks a no go because the way records are been updated? how I could implement something like this. No code is necessary.based on the comments I have added these additional details.database is SQL server 2008 asp.net 3.5 one record could be many parts of the database for instance, the booking table session table and a row in the interrupter table.the user will look at a list of sessions that need booking select a booking and fill out a booking form to make the booking. Want to stop is someone else trying to do the same booking at the same time or while someone else is doing the booking.
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