Basically what i have is a button and i want this button to add value in database, i mean if the value in the database is 1 it adds 1 to it, so that the value becomes 2.
View 3 RepliesI am trying to use a stored procedure to insert new records from aspx page. I have created an stored procedure for that and it works fine but I want to display an error message when record exist. It does not display any error message however it does not insert when record exist. How can I display an error message when record exist flag in stored procedure -
[Code]....
I am counting from a table for that i have written code as below
protected void get_Id_Afterpoint()
{
int counter = 0;
string strSql = "select count(*) as ID from tblEnergy where ID=?";
OdbcCommand com = new OdbcCommand(strSql, con);
com.Parameters.AddWithValue("ID", DropDownList1.SelectedValue);
OdbcDataAdapter oda = new OdbcDataAdapter(com);
DataTable dt = new DataTable();
oda.Fill(dt);
if (dt.Rows.Count == 0)
{
lblID2.Text = "1";
}
else
{
counter = dt.Rows.Count;
counter = counter + 1;
lblID2.Text = Convert.ToString(counter);
}
}
there is no record related to DropDownList1.SelectedValue. but as i am counting if(dt.rows.count) and i put break point on the bolded part it shows 1 record. how it can be possible?
Creating a system with web front end and SQL backend (microsoft obviously). I have tried using the asp.netsqlprovider but i can;t as i am only allowed one database on the server, so i then tried to update my current database with the triggers to input the schema into the already existing database.Next step i create my own table with two simple fields of username and password and try and authenticate that way, i can't get that to work either.
I ahve limited permissions on the network as i am a University Student. I really don't know what to do. Never had to create a log on system before and i thought it would be far simpler than this. I ahve used Microsoft's sqlprovider schema before and it worked fine. I have also authenticated via IIS and AD too before. I can't do any of those two in this instance it seems.I need an alternative for logging in users, if needs be in can be crude. I also still need to have some kind of two different views too for logged in users and not logged in users, but that can change if needs must.Don't let me down people, haha. Think this posts in the correct place, i could not find another one i thought could be more relevant.
I have a development database and one in production. There are two different sets of data in each database. On my dev system, I have mostly dummy data that I test with and in production is the real data for my web application. I recently added a new feature to the app that required a new table, and a new field for a foreign key in an existing table. I now need to upload that new structure to the production database without overwriting the live data with my test data.
If I run the Database Publishing Wizard, and choose "Schema Only" will it import the new structure and leave the existing data alone, or will it drop the records in my production database tables?
I have a table with several columns i created,
How can i add a new column and specify its data type now? i using sql server and Gridview.
I tried to add one using GridView but it shows me columns called edit delete something is not like my bound fields i created early.
I have data entry form like...There are some empty rows and some of them have values. User can Update existing values and can also fill value in empty rows.I need to map these values in my DB table and some of them will be inserted as new rows into the database and existing record will be updated.I need your suggestions, How can I accomplish this scenario with best approach.
View 2 RepliesI am attempting to write my very first ASP.NET application, it will simply display the contents of an SQL server database table in a Gridview. This is just a first step, my eventual intention is rewrite a set of VB6 applications I wrote some years ago. But I need to walk before I can run.
I have already created an SQL Server database containing all the tables used by the VB6 applications.
How do I link this database to my ASP.NET application. Previously (on another computer) I have simply opened "My Computer" and then navigated to the .mdf file (e.g. northwnd.mdf) and then dragged and dropped it into App_Data in Visual Studio. However when I try that on my own machine, with my own data, I get an "Access Denied" message.
How can I not have access to my own data on my own computer? What am doing wrong?
I am running Visual Studio 2008 on a Windows 7 Ultimate machine, with SQL Server 2005 Compact Edition (or which ever one installs with VS 2008).
when I make restore to backup database display this error :
The backup set holds a backup of a database other than the existing 'elib' database. (Microsoft.SqlServer.Smo)
how I can solve this error ?
I have a InsertCommand function i am using to insert the dropdownlist in my updatepanel. When the Add button is clicked. It adds the record multiple times. Am not sure why it does this. Here is my code.
Dim Bank_number
As
DropDownList = UpdatePanel1.FindControl("ddlbank")Dim
NoteAccountNumber As
DropDownList = UpdatePanel1.FindControl("ddlAccount")'
UpdatePanel1.ChangeMode(FormViewMode.Insert)
lblsee.Visible =
"true"
'now collect selected information on the drop down
RelationshipTest.InsertParameters(
RelationshipTest.InsertParameters(
"bank_number").DefaultValue
= ddlBank.SelectedValue.ToString"noteaccountnumber").DefaultValue
= ddlAccount.SelectedValue.ToString'Insert into db
RelationshipTest.Insert()
Also, i was woundering if any of you might know the logic behind clearing inserted data from the dropdownlist once its inserted. I am trying to make sure data is not entered mulitiple times. Unique Indexing comes to mind but thats only on the backend.
I have 3 pages, one to add a category, one to edit the category, and one to delete the category. The add and edit work fine. The delete is not working for some reason. I click the link on my site to delete it, and I'm just staring at the green bar in my browser taking a long time. The add and edit don't take long at all to perform their function. I'm thinking this is a connection string issue, but I don't see how it can be the case. It relies on web.config for it just like the other pages. Following is the delete page code behind and also delete cascade from the business logic area. After the page refreshes, I'm not getting any diagnostics or error messages which I have in the code. Doesn't this have to mean a db connection issue?
[Code]....
[Code]....
Get column value from record in database
I'm a beginner in programming and also to asp.net. I am trying to insert a row into an sql database using vb.net but I keep getting an error whenever I try to execute the code. I have read other post but I do not understand the solutions or how to place them within my code. Here is my stored procedure and vb.net code.
Stored Procedure:
CREATE PROCEDURE [dbo].[up_Create_Store]
@Name nvarchar(20),
@StreetAddress text,
@City text,
[Code]....
Is there anyone know the reason why that there duplicate data in the database most of the time the information is same like name,description.but the unique id is different and the date time is got different millisecond.I confirmed that there r no loop condition on the code.
View 8 Repliescopying some data from an existing remote database(SQL2005) to an existing local database.First - I have very little experience in this area. I'm using Visual Web Developer 2008 (VB). Currently if I want to update some data in the local database I do something like this:
Dim conn As Data.SqlClient.SqlConnection = New Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings("CCCdbConnectionString").ConnectionString)
Dim cmd As Data.SqlClient.SqlCommand = New Data.SqlClient.SqlCommand("UPDATE [Orders] Set [OrderStatus]
[code]...
I want to retrive thousands of record from the database. Please tell me the the most efficient way to do this. I am using sql server. I want to bind A gridview with these records please let me know the most efficient way to do this so that the loading time for the page is reduced
View 4 RepliesJust to test, I created a blank website and a blank web site project.
When I added a referece to web site by doing right click and add reference it added the dll inside a BIN folder but on ther other hand when I did the same for a web site project it created a reference folder for me and then added the dll under the reference folder.
I am creating an album using the following stored procedure, which returns the primary key for the newly created record:
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE PROCEDURE [dbo].[fpa_sp_albums_update_insert]
@album_id int,
@album_name nvarchar (50),
@album_descr nvarchar(250),
@album_img_cover_id_FK int,
@album_creation_date date
AS
If @album_id > 0
UPDATE [fpa_albums]
SET
album_name=@album_name,
album_descr= @album_descr,
album_img_cover_id_FK = @album_img_cover_id_FK,
album_creation_date = @album_creation_date
Where ((album_id = @album_id))
Else
INSERT INTO [fpa_albums] (
album_name,
album_descr,
album_img_cover_id_FK,
album_creation_date)
VALUES (
@album_name,
@album_descr,
@album_img_cover_id_FK,
@album_creation_date)
Return SCOPE_IDENTITY();
I execute the above stored procedure using the SQLHELPER. The VB.NET code for the page is as follows:
[Code]....
However, the createdAlbumID always shows -1 instead of the id for the newly created album.
I have three dropdown lists which perform as cascading lists. #1 sets the filter for #2 and then #2 does the same for #3 (standard stuff). Each dropdown gets its data from queries to separate tables.
My problem is when I pull data from an existing record and assign the data fields to the controls using the datareader the second list will not allow me to assign a value to it.
The dropDownAssetGroup.SelectedValue sets easily to assetGroupID but the dropDownAssetType.SelectedValue won't take the value of it assetTypeID (which does get the correct value), it stays as "". The values in the existing records are contained in the dropdown's items, and were even populated from the same controls.
[Code]....
I need to add Existing row value and new value in table
ex,
ProductID QTY
1 5
2 10
3 5
here the productid 1 is having QTY 5 now i update this Qty to 25
how do i form the query add QTY 5+20=25
I can't for the life of me remember how to do this and I'm sure someone will answer this pretty quickly. I need to insert or update a record based on if it exists so in the SP I need to do:
SELECT * FROM table1 WHERE LinkedID = @ID Then I need to check if any rows were returned and apply it to an if statement which is where my mind is blocked.
I'm having trouble with an SQL statement. I want to have one statement that checks to see if it a record exists. If it does, then update it and if it doesnt then insert a new one in the server. Here is what I have so far:
[Code]....
I have created small database prods. I have created one table Products. I have given columns like productid, productname, price. after creating table. I got an idea to add identity to productid ie., auto increment. how to add identity to existing column.
View 5 RepliesI can see the AdventureWorks MDF file in my Server Explorer window in VS, but when I try to add this database file as an Existing item to my App_Data folder in the Solution Explorer it gives me an error saying that this file is in use. Is it possible for me to add my Adventureworks database to the App_data folder? I am running a 32-bit XP using SQL Server 2005 Express.
View 2 RepliesI want to add a field in a Existing table.
I dont want to alter the whole table.
Give me Solution at the Design side.