I know how to insert a new row into a table that has a binary column. But is there any way to update the binary column once that row has been added? So far an exhaustive google search has turned up nothing. Get the current row that I wish to update delete the row that I wish to update Create a new row with the information from the row I wish to update plus the new binary It just doesnt seem very elegant, and I was hoping I could do the same thing with an update statement. Here is the updated code I am using now for reference
I am trying to update a SQL Server database Date field.When the user enters the date they enter 02 Oct 2010.When I pick up the DateTimePicker.Value it is 10/02/2010 00:00:00. I need to get the value to read 02/10/2010 00:00:00 How do I get the value to be in this format?
I have an image stored in the database as varbinary(max) When it's read out into a datatable, it's only being displayed as System.Byte[]. I've tried every trick in the book to get the binary in string format so I can write it back to the varbinary column in another database.
There are lots of questions about this but I've not been able to solve my problem using the answers to any of them (after many, many attempts..)
I'm working in vb.net creating an asp.net web application. I have an SqlDataSource and a GridView on my page.
I want to change the DoNotMail boolean value represented by a Gridview checkbox and automatically update in the database if the checkbox is checked from 0 (False, Will Mail) to 1 (True, Won't Mail) here is the code I used. [code]...
is it possible to do a two way sync on the entire gridview when the user hits a button so you don't have to do an update every time a row is changed? because the user might check the box and then check another box then uncheck a box and it would be a lot of updates...
I cannot get the following to work for me: its the section that sets the default for system.data.linq.binary. The database I work with doesn't allow nulls in any field. So I generally run my buffer through this routine to populate defaults and then set the real values independently, (this works when I miss a field). I can set the Linq table field = fakeBinary and it works like a charm. Thus, I don't understand why using reflection can't pull of the same thing. Ex: Me.CM20500WindowBuffer.Reconcile_Messages = New Byte() {0} works.
Try Dim fakeBinary As System.Byte() = {0} For Each fld In nObj.GetType().GetProperties Select Case fld.PropertyType Case GetType(Byte) [Code] .....
i have a requirement where in i have to update the information of a record with new values.how to open the binary file and update with the new information.The existing binary file contains 5 records with serial nos.now i want to update the information of sno 1.i am using filestream, binary reader ,binarywriter SureshThere is an Island of Opportunity In the Middle of Every Difficulty
any1 has any ideas on how to code a patch maker, (binary differential update) so when i run my patch maker, it output a program (*.exe) that will update files on another machine or local machine, assuming that old files to be updated to a new file having the same data in result;
and also the output patcher should be smaller in size (compressed)currently wad i could think of is a very very simple one but totally useless and not efficient and result large file size patch
1. where mine is read both file data 2. is both byte the same ? 3. [if not same ----> write down the marker value in outputfile1 and byte value in outputfile2] 3. [if same ----> do nothing] 4. read byte if available 5. (marker + 1)
the marker value is how many byte have been advanced so with resulting patcher will read those marker values to advance to the file address (which is the position number) and update accordingly to its byte value outputfile1 is marker values, outputfile2 is byte values corresponding to outputfile1 marker value to advance to the byte position
I'm trying to save a binary file stored in a SQL database with a SaveDialog, the function RetrieveFile retrieves the specified file from the database as a Byte array, here's what I have so far:
Private Shared Function RetrieveFile(ByVal filename As String) As Byte() Dim connection As New SqlConnection("Data Source=SERVERSQL2008;Initial Catalog=NorthPole;Integrated Security=True") Dim command As New SqlCommand("SELECT pcfFile FROM Items WHERE pcfFileName=@Filename", connection) command.Parameters.AddWithValue("@Filename", filename) connection.Open() [Code] .....
Files are saved as "SqlDbType.VarBinary" within the database. I get: "Index was outside the bounds of the array." on: Dim retrievedBytes As Long = reader.GetBytes(1, startIndex, buffer, 0, ChunkSize) The MemoryStream appears to not be retrieving the data yet the SQL syntax is correct.
i am trying to read data from a sql 2000 database.one of the fields is defined as datatype:image, Length:16.when I am in SQL management studio and do a select for this one column.[code]when i do a datalength on this field it come up with 2404/My question is, I know this is a numeric field, how do i read this into a vb app and how do I break this down into individual values?
I have a string with Binarydata that is 64bit. I want to store this data into SQlServer database and the column is varbinary(Max).When I pass the string I am getting an error saying string cannot be converted into varbinary.
I'm using a stored procedure to updateinsert data into a table using MERGE. One of the items being inserted is a VarBinary file. Now if I wish to add a new file it's just a case of using ReadAllBytes as below, to remove the file I pass DBNull. Now what if other fields are being updated but the file is not being changed? I want the field to remain untouched unless I'm replacing the file or deleting it as above. I cannot add the file via the parameter again as it may only exist in the database, unless I read it first and write it back which seems pointless. [Code]
I have insert a data which is in binary format into sql server database table Column type of table is Image Type. I have to read this column from a XML file,I am able to read but
I have a general ledger branch file mtn. form in vb 2008. I am using a datagrid that is bound to an sql 2008 table using a dataset. In the grid I am allowing the user to update 6 of the fields in the table. The table also has a date last changed field. Who do I get the date last changed field changed to the current date for only the rows in the grid that have changed?
I want to UPDATE 1 field in a row of data but I want to select that row based upon 2 other changeable fields. I can not get the changeable fields to work. When I put in a integer in place of the @field, it works but when I use any @field name of field name, it does not work. HELP HELP
This works:: cmd.CommandText = "UPDATE [dbo].[Healing] SET [Printed] = 'NO' WHERE (([Row] = 1) AND ([Flag] = 1))" ReturnA = cmd.ExecuteNonQuery()
I am accepting the amount value from the user. The amount would be added to the fees if the fee is in areas, if the fee is 0, then the amount update the fee field. but when the code below is run , only the amount is updated without adding to the arrears which is the fees. Wat is wrong with this command?
update Student_Info set Fees = (Fees + '" & Me.txtamount.Text & "' ) where Class = '" & Me.cbxClass.Text & "'"
I have a database in access and have connected it to vb, its connected to a login system the only problem that comes up is when i want to add or update a field which then "da.Update(ds)" gives an error.
Update Private Sub btnUpdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdate.Click Dim cb As New OleDb.OleDbCommandBuilder(da)
I try to explain better. I have one user control in page, and inside this have UC2 (modal pop up). And I try to achieve this: When I close UC2(modal) i try to update some fields on UC1. And this works fine for one(I have UC2(modal) and on button Save OnClientClick="SaveInfoCI()"), and in UC1 on top of page
function SaveInfoCI() { document.getElementById("<%=frmData.FindControl("txtImplementingCI").ClientID%>").value = document.getElementById("<%=UC2.GetClientID%>").value; }
but because i reuse this control in another place i want to update another field. Basically now i Have 3 JS function that update 3 fields. And I try when I click save in UC2(modal) I must execute one of this 3 javascript f, to update right field. I don't want to have 3 same UC with only difference in OnClientClick="SaveInfoCI().
I have this error when I run my program Can not update order id field not updateable, This happens when I try to enter data into a text box and press save. to my data grid.
im connect the database using the OLEDB, how to write the code when the user types '02' in textbox1, 'myname' in textbox2 and 'myqty' in textbox3, if database table itemcode field same with textbox1 then will only update the textbox2 and textbox3 in other field, if it does not exist then create the new record.
I am trying to update a field in my MySQL database using VB.NET.....
Basically, I can read the field's content, using this code:
SQL = "SELECT * FROM `boomtable` WHERE `Tab1` = 'CLOSED'"
However, I want to update the Tab1 field to have the value OPEN if it's currently closed, and make the value CLOSED if it's currently OPEN.. Right now, it's CLOSED, (I put the value in manually when making my table)
Here is the code I'm using that changes my label based on the Tab1 field's value that works fine... Except I want to actually make it update the field in the database in addition to changing the label text.[code]...
I have written this set of code that will update an Access Database row: (Total_RAM, Model, etc are just string variables)
Dim Record As InventoryDataSet.InventoryRow Record = frmMain.InventoryDataSet.Inventory(0) Record.BeginEdit() Record.Total_RAM = Total_RAM Record.Model = Model
[code]....
My problem is the fact that one specific record called "Record.Asset_Tag" exists in the database, but I don't want to programically alter it. That will need to be typed in manually. However, even if I don't put in the line "Record.Asset_Tag = ...", it will overwrite anything in the field with a blank.How do I keep whatever is in the database unaltered in the Asset_Tag column?
My regional settings are set to dd/mm/yyyy.I'm trying to update an access table from a datagridview.When datein in the Rate_Per_Period table is #31/10/2009# the update works perfect.When datein has a value of #1/11/2009# the update doesn't work.[code]
