best way to store the data for a .net database and the reasons why. Please note I would like to have access to the database from a blackberry and the option for multiple applications to read & write to the database at the same time.
View 3 RepliesI wish to create a visual basic asp.net web application which can store data, entered by the user via a textbox to a database, once the STORE button has been clicked. I also want to be able to view the stored data by clicking VIEW STORED DATA.I am using visual studio and I am a complete beginner. I need to know how to create an appropriate database and how to link it to my web application.
View 2 Replieshow can i get a data from database and store it in a textbox??
View 1 RepliesI am using an Access database and vb.net 2010. I have created a table in the database with columns for title, datein, dateout and roomnymber. In vb.net 2010 I made a distinguished title = combobox, datein and dateout = DateTimePicker. When I click on F5, an error occurs: INSERT INTO Syntax Error in statement. Here's my code:
Dim sql As String
sql = "INSERT INTO tcekin(title,firstname,lastname,address,country,company,roomnumber,datein,dateout,rommtype,note)" & "VALUES('" & ComboBox1.Text & _
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I created a database (.mdf) file. I added data to it after running the program in debug mode. When I closed it and opened it up again, the data I got was stored and loaded again.I closed my whole Visual Basic Express program. When I opened it up again, all the data had disappeared.
Can you tell me what I am doing wrong with the program? I can't get queries to work either. It worked when I used the NOrthwind dataset this past weekend but it is not working when I use my own or empty dataset.
I am a VB.net beginner. I am doing simple program that has database connection with access 2007 and i want to store the data (whatever i enter in the textbox) to the database.I did the connection as per the instruction in the msdn(i.e;datasource/database/ms access/selecting accdb file/draging and dropping the fields of the table to the form from the datasource window)I want the code to store data from vb 2008 to access 2007.
View 7 RepliesIf you have to store and retrieve data from a database is a string not the most effcient way? What is best?
How does this work in a real world scenario.
For example: I have a customer ie first name and last name and the CustomerID is autoincremented when initially added to the database. Now, the user could lookup and find the customer by their ID but we all know that's not practical. They don't know 231223 is John Adams, they know John Adams or Adams John.
So how do you handle this? Access is the database I am using but I think this would apply to any database.
how to store data from a listbox to the database in another form in vb 2008.. i have tried the pass value but it isn't working...
View 1 RepliesI want to store date time picker into database .I am using date to search my reservation information and how is the code for search out the information from database.
View 4 RepliesI am following some examples I have found in earlier discussions, but have run into a problem trying to save the data. I have included my code below, and everytime I reach the ExecuteNonQuery() command it generates a syntax error in the Insert command error.[code]...
View 7 RepliesHow do I store BLOB data (e.g. image, document) into the database?
View 1 RepliesHow to store data from listview/listbox/database to a array for further processing?
View 1 RepliesI am new here and really excited to see the huge resources on this forum for vb.net. I have just started my learning of vb8 and need to create some basic applications for my personal use.I need to develop an application that can extract data from a html table and store that data into Access database. I have learned to create web browser on Visual Studio 2008. Below is the link from which I need to extract data and store into a database
View 3 Repliesi have problem with inserting data to database by calling store procedure from sqlserver2005. i try to insert, but i can insert some field i don't know this problem correct the code below the procedure is :
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I have a process that's going to initially generate 3-4 million PDF files, and continue at the rate of 80K/day. They'll be pretty small (50K) each, but what I'm worried about is how to manage the total mass of files I'm generating for easy lookup. Some details:
I'll have some other steps to run once a file have been generated, and there will be a few servers participating, so I'll need to watch for files as they're generated.Once generated, the files will be available though a lookup process I've written. Essentially, I'll need to pull them based on an order number, which is unique per file.At any time, an existing order number may be resubmitted, and the generated file will need to overwrite the original copy.
Originally, I had planned to write these files all to a single directory on a NAS, but I realize this might not be a good idea, since there are millions of them and Windows might not handle a million-file-lookup very gracefully. I'm looking for some advice:
Is a single folder okay? The files will never be listed - they'll only be retrieved using a System.IO.File with a filename I've already determined.If I do a folder, can I watch for new files with a System.IO.DirectoryWatcher, even with that many files, or will it start to become sluggish with that many files?Should they be stored as BLOBs in a SQL Server database instead? Since I'll need to retrieve them by a reference value, maybe this makes more sense.
How do you store data in the access database and also to retrieve it? and also a search engine for the database?
View 1 RepliesI am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
I am new to VB.net. I want to read and input file and store that data to an SQL Server database. Do you have an sample code that do such?
View 1 RepliesI have a modbus TCP device that I have managed to connected to through my VB source code.
I want to poll (continueously read) data from certain registers of the device, and store the polled data in a file (text,csv, excel).
I have an application that uses Dataset.WriteXML to create a small backup before data is syncronized to a data store (less than a meg).This application has worked well for 5 years now, and all of a sudden with the installation of XML 6.0 SP2 the XML document is not working correctly.I have multiple tables within a Dataset (Company, Contact, Notes, etc...)When WriteXML is called, the first table should be Company, however, the first table is being named Contact with the Company Data in it. The Notes table is being called Contact and so forth. In other words it's not giving the correct names to the tables in the XML File.This appears to be a bug, which is causing great distress on all the companies who have been using this program.
View 3 Repliesi just want to know how to get a template and store it in a data base without using data set
View 1 RepliesHow to allow the user to select the date from the DateTimePicker and store that selected date month and year in the database table?
View 3 RepliesI am doing an application on receiving sms but the problem is that I want to put the receiving sms in the database. I am not sure how the process works.
Here is the code that I am using
Imports System.IO
Public Class Form1
Dim receivedData As String
Private WithEvents serialPort As New IO.Ports.SerialPort
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] ....
For my website I've just implemented tinyMCE for my site (just a word processor). Everything works fine except when i try to store the string variable input into a sql server database. I want to store a string and not have the html tags make me exceed the 8000 length limit(the html tags take up most of that space). My question is, is there a solution so I can store my document with the html tags without shortening my document? Create an if statement that will determine the length If > 8000 than split the string apart and insert into separate fields. Maybe their is a compression feature which I'm unaware of?
View 1 RepliesI am doing a project on sms. I am doing the receive part where the sender send sms and my program just take the sms that has been received and store in the database but the problem is that I did not know how to connect the sql connection with the program that I used which is to detect the receive sms and store it in the database. My problem is that I want to store the receive sms in the database. I am using the SQL Server Database and visual studios 2005 in windows appliaction. I know how to make the connection between the application and the SQL server but I did not know how to implement it when to receive the sms.
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Imports System.Data.Odbc Imports System.IO
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim FileSize As UInt32
Dim rawData() As Byte
Dim fs As FileStream
fs = New FileStream("c:abc.jpg", FileMode.Open, FileAccess.Read)
FileSize = fs.Length
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This is my code to store a image to mysql database. But it have error n show as "No mapping exists from object type System.IO.FileStream to a known managed provider native type."
Problem storing value in array from database
View 3 Repliesi m making an window application in VB.NET 2005 , i want to know how can i store videos and images in database--pls tell me of using ORACLE 10g or SQL SERVER 2005 or My SQL?
View 3 RepliesI'm working on an application that is used by English and French users. French users have their computer's regional settings that make the decimal "," instead of "." and the number spacing " " instead of "," So, a French user will input a value "9,78" in a text box. I need to make this value "9.78" so I can safely store it in a database. How can I convert this to the US number format?
View 8 RepliesI've been having some trouble wrapping my head around how to link the 4 tables I have together. I'm creating a database to store all of our equipment in. The four tables are Equipment, Service (Stores dates that a piece of equipment has been worked on), Invoice (Stores invoice and warranty dates) and Peripheral table (Stores a unique ID for each type of peripheral we have in the database. Monitor (1), mouse (2), keyboard (3) etc)
View 4 Replies