how to calculate numeric values in a sql table in vb.net. For example I am developing a system which returns the required fields in GridView, I then copied the "NetValue" field in a list box. Is ther a way of calculating (adding them together) all the Net values listed in the list box? or is there a better way around it?
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I have a datatable with some rows I need to insert that datatable in to database using a stored procedure.
For Each row As DataRow In dt.Rows
cmd.Parameters.Add(New MySqlParameter("@DOWNLOAD_ID", dt.Rows(0)("DOWNLOAD_ID").ToString()))
cmd.Parameters.Add(New MySqlParameter("@FINALY_FIELDCODE", dt.Rows(0)("FINALY_FIELDCODE").ToString().Replace("|", "").ToString()))[code]....
When i do this I got an exception {"Parameter '@DOWNLOAD_ID' has already been defined."} How to get rid of this exception and can we insert the datatable with out for loop.
i am new to stored procedure and VB.Net, i am trying to insert a value to a column in a table in my database using VB.Net and Stored procedure Here's the procedure:
1. A user will input a value to a textbox, for example lastname.
2. When the user click the save button, the button will call the stored procedure.
Here's my code in stored procedure:
[Code]...
I currently have this working already for one of my combo box's, but when i try to use the same code i get this error ''There is no row at position 6.'' . The are 2 fields in the table asset_type_id, asset_type_name', im trying to dispaly the values in a combo box for the field 'asset_type_name.
the code for ' Friend Sub RetrieveCustomerInformation2()' works but the other friend sub throws the error.
Imports System.Data.SqlClient
Imports System.Data
Imports System
Imports System.Data.OleDb
[Code]...
I have tried to run below macro in excel 2010, but the error pop up and after press debug button, the line "expected_loss = application.worksheetfunction.average(final_loss)" was highlighted. May I know how to solve this problem?
Sub test ()
'Aim: to store data in array and calculate the average of the data in the array
Dim final_loss(1 to 70000) as double
[code].....
How do I write an expression to calculate all characters of each row by my own defined value to each character = all the A and B and C and etc. will be as 2 and all I and J and whatever ... will be 1 so I need an end result of the total.
View 3 RepliesI have 2 tables in sql server
1) I want to join those tables.
2)I have 2 columns in the table for eg:- outside temp and power by selecting the outside temp i want to calculate the average of the power with similar values.
[Code] my issue is that now i need two cases, first i need a query that will return the date created and modified of the table and i also need to know if its possible to query a list of table names in the database ordered by date created but that have a certain thing in their names. for example the database contains the following tables: [Code] and what i need the query to return is the tables that contain "Data", settings and employees are for the other functions of the program. so the query should return the 4 data tables in order of date created. but i have no idea how to go about doing that in the query, does anyone know how this is done?
View 6 RepliesI want to calculate the average value of excel table readings 1 hr once... how do i import the sheet and how do i calculate the avg in vb.net?
View 4 RepliesI am having a remote server it has INVENTORY DATABSE , and also iam having same databse in my local system. I want to populate by local database table with my Remote database table through Vb.net code by click a button. How to do this .
View 1 RepliesI want to add a new table in my accdb and copy the content tfrom an existing table into the new one.
Is there an easy way to do this?
I am working with a datagridview on my form and have a CellContent Click event as shown below;
[code...]
Now, when I check the checkbox Yes and type in the comments textbox, the Comments are not stored to the table. However, the checkbox is set to a true value.
Is there a numeric text box, not an up-down box, a SIMPLE numeric box into which the user can place a number, 5 boxes actually, then on command have the five boxes added and the sum displayed?
View 8 RepliesI'm using a stored procedure, but am receiving a "Procedure sp_OrderTracking_Update_UpdateItem has no parameters and arguments were supplied" error. Here is my stored procedure:
[Code]...
I am trying to decrypt my password stored in aspnet_membership table... I am using the following code,
[Code]...
but at the line of DecryptPassword(encodedPassword) it shows error as "Length of the data to decrypt is invalid."
I'm using a DataReader to display informations stored in a table.I created Two button to go to next record and to go back. [code] In ASP.NET I didn't find a way to do like it, because DataReader hasn't the EOF property.How can I convert this last code (VB6) to ASP.NET ??
View 2 RepliesHow to insert images into sql table without using a stored procedure? I am working on a windows form for employees profiles (vb.net) and i have a combobox and a few textboxes. My combobox is manually connected to a database and also the other controls. When I fill the blanks and hit save, automatically the data is saved in my db and when I look into my combobox I see the new employee name. When I select a name, every control get filled. I have a picture box where the selected picture profile will be display. The picture will be display also when I select a name from a combobox. It will be retrieve from db table GeneralInfo Column Foto. What I need is to include in my sql statements the code to be able to save, update and delete the image from and to db.
This is part of my insert code:
Private Sub savenewprofileonload(ByVal sender As System.Object, ByVal e As System.EventArg)Handles btn_saveprofile_onnewprofile_tap1.Click
Dim mconn As New SqlConnection("Data Source=(local); Initial Catalog=mydb;Integrated Security=true;")
Dim cmd As New SqlCommand
[Code] .....
Can I use different stored procedures from 1 table adaptor that has all the stored procedures in it?
View 3 RepliesI have a stored procedure, and I want to save the results of the stored procedure into a table. Is there a way I can do this with a simple query without creating the table beforehand.
View 8 RepliesI have developed some software(vb.net) that records fees paid by the students. The purpose is that the database should be stored in a server, which can be accessed from any stations linked with it.This is working fine with a network of 10 computers. I need to publish it over the net so people could do this job logging in over internet. Database (access database) should be stored on a web based server.
View 1 RepliesI have a very specifically designed table in a .aspx page. I have an <asp:SqlDataSource> tag that works fine with a DetailsView. I have tried DetailsView, ListView, Gridview etc. and cannot obtain the desired design. Is it possible to execute a Stored Procedure and have the individual results displayed in the individual cells of a web page table? This seems like it should be simple but it apparently is not.
View 2 Repliesstored many row records into another table from data grid view?
View 1 Repliesis there a way to validate controls on a form, where the validation rules themselves are stored in a database table?My problem is my application is used to submit forms to mulitple government agenices both local and state level. Every entity seems to have there own rules about what needs to be in what location. i would like to not have to code all of the various rules for all the different fields. My thought was to store them in a database table and then perform validation based on rule table lookups...however I would like to use the .NET validation controls.
View 2 RepliesI have a stored procedure that creates temporary table to populate return table. It works perfectly fine when I execute it on SQL management studio but when I try to import this sttored procedure, it give me an error Invalid object name '#TOTAL' which #TOTAL is the temp table that is created.Does VS2010 not allow temporary tables in Stored Procedure?
[Code]...
Check if park_id already exist in table calendar by stored procedure? [code]...
View 2 RepliesI have a date/time variable stored in a column in an SQLite table. I need to select the string with the last 3 digits trimmed off. [code]
View 1 RepliesHow to edit a Word Document (.docx) stored in a SQL Server Table?
Here is the tentative work flow:
Read BLOB from SQL Table through Ideablade
Write BLOB to disk as .docx
Open .docx using Word
[Code].....
I am sure there are a lot of people doing this already.
In a DataSetIf I right-click on a TablesetAdd QueryCreate New Stored Procedure. The creation will fail for me using a SQL 2008 database. "There was a Problem with the UPDATE stored procedure. The stored procedure was not created."If I "Preview the SQL Script..." copy it and run it manually it fails because it is not putting brackets around my user name. "CREATE PROCEDURE SDSDBLUESKY.UpdateQuery" Fails"CREATE PROCEDURE [SDSDBLUESKY].UpdateQuery" WorksThis is a work around because it links to this if I do manually when it gives me the preview option, and don't rewrite it. But is there some setting change in VS2005 to get this to work correctly in the first place?
View 1 Repliesi have two text box's and compare from two columns in database the result auto show another text box and then following below code using my program
Public Sub cal()
Dim sum As Double
Dim res As Double
[code]....
how to calculate the association with a database, containing two tables the first table price, and the second table of the goods, and the program in the language of Visual Studio 2010 Professional, using the Access database or sql no matter, the question is: How do I make the program take values from the table price, and calculates the cost of living depending on the equation Stored in the database??
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