Importing 403 Rows From .CSV File From Disk Stops After Import Of 100 Records
Dec 14, 2010
Im trying to read A .CSV file into the database.Every time at exactly 100 records the code seems to stop executing.Strange thing is, that when I step through the code manually, the code DOES run to the end...and a total of 403 records are imported.So NO errors are thrown, and no weird data is present in the row at which the code stops running (which makes sense, since the code is all executed when stepped through manually)[code]
I am just trying figure out a record import program from text file into access database using Microsoft.Jet.Oledb Provider 4.0 and Vb.net. And it seems easy but my problem is different. In the text file, records are not delimited.
Format of the text file: Field Name & Size Date[Date,ShortDate]FirstName[20]LastName[20]Sex[1]Age[2]
[Code]....
Can I put delimiter programmatically while reading the text file using stream reader and later simply import the whole file in DB.
The following code executes successfully 48 times. During the 49th iteration after executing (or during execution of) bitmap.EndInit() the for each loop stops executing and the xaml window appears. Anyone have any idea what might be occurring?
I'm trying to import all data from an Access DB using Visual Basic 2005. I'm new to Access and so far I can only import one record at a time. Here is the code I have so far
Private Sub BtnLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles xLoadButton.Click Dim con As New OleDb.OleDbConnection
My application needs to collect a list of all telephone numbers from a table in the company database. Running a COUNT on the amount of records that my SQL Query to get this information returns a total of 9,430,138 records. I've tried selecting DISTINCT values,but that doesn't even cut the count by 200 rows.The application needs to store this information in a .dat file that it will create after populating a DataSet. Unfortunately the CPU and Memory impact for this operation make this import literally painful. CPU shoots up to 100% and memory usage which, on this system, normally holds steady at 413mb during normal operation exceeded 1gb usage yesterday when I tested for the first time..Obviously, this is far too much for a single application to use during operation. I have no problem with the import taking a reasonably long time because this import is basically just a "snapshot" of the data. The data in the database shouldn't change very regularly, so I figure an import like this once every 2 months should suffice.
My problem is the amount of system resources this operation uses. How can I streamline it to minimize the impact it has? I'm OK with running multiple smaller queries to collect the information from the database, but don't know how to go about it.I executed the query live on the database, and it gets to around 6.5m rows before an OutOfMemoryException is thrown
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Below is my export to csv from listview using vb.net
Function ExportListview2CSV(ByVal lstview As ListView) As Boolean Dim saveFileDialog1 As New SaveFileDialog() Dim csvFileContents As New System.Text.StringBuilder
[Code]....
i want to exclude the records from the 1st and last rows where should i make chages in above code
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The following gives me an error when I try to open an Excel file if the value of lblFileName is different than the file on disk by differences of upper or lowercase letters.
I must search a binary string for a pattern. This worked fine in VB6 using Get to read a file into a string and using InStr to search for the pattern. The conversion from VB6 to VB.NET changed Get to FileGet and warned of new behavior, but I don't see anything in the FileGet documentation about not being able to read 0 value bytes.
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I'm trying to download a file using ftp and then using a streamreader to read it and write it to a text file. The problem is, when I download the file and read it, either it did not get all the data or it stops writing the data to the local file and doesnt produce any error, it just sits there. I've tried it with many different files from the ftp site and this always happens.
Private Sub Download(ByVal stateURI As String, ByVal userName As String, ByVal pWord As String)
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I wish to import data (into a text box) from specified tags within an XML file.[code]Instead of loading the whole file into a text box I would like it to load data within <ABC></ABC> tags.The amount of <ABC></ABC> tags varies for each XML file. As does their placement (which line they are on).
Deleting a file is one of the controversial matters of computing. When a user deletes a file (removing it also from the Recycle Bin), they assume that the file is indeed deleted. However, what happens is that only the reference to that file is deleted, so the system can no longer remember where the file is located, but the file itself is very much intact.
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I am trying to programitally download a file from a https server, that uses cookies (and hence I'm using httpwebrequest). I'm debug printing the capacity of the streams to check, but the output [raw] files look different. Have tried other encoding to no avail.
Code: Sub downloadzip(strURL As String, strDestDir As String) Dim request As HttpWebRequest Dim response As HttpWebResponse request = Net.HttpWebRequest.Create(strURL) request.UserAgent = strUserAgent [Code].....
So I get the right size file downloaded, but dotnetzip does not recognise it, and the files that get copied out are incomplete/invalid zips.
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