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
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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?
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?
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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 RepliesBasically 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 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 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:
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However, the createdAlbumID always shows -1 instead of the id for the newly created album.
MVC.Just i started playing with Simple controls.I need to get the textbox value in Label. Can Anyone Guide for this pls.
View 3 RepliesI'm very new to this area and am using ASP.NET 3.5 with WMD 2008 Express Edition and VB code.
How do I write records to the SQL database using VB? I want to use the connection string, etc used in the ASP.NET controls if possible.
My website is a Rugby Club site and I've an SQL database of match fixtures which include TeamId(1XV, 2XV, etc.), Season(2008, 2009, etc) and match date.
I allow some users to update the fixture details but want to insert a series of new fixture records for the neext season which contain just TeamId Season and Match Dates. I therefore want to take the season and Team Id from label fields and then create match dates by adding seven days to a start date.
There are several articles and blogs that are sort of about this subject but I haven't found one on point. Wondering if anyone has done this? Using VS2008 creating an ASP.NET 3.5 app with a strongly-typed dataset connecting to an MS SQL backend. In one TableAdapter, I have a custom Insert statement that inserts the record into the primary table. There are two other tables the also need records inserted into them and those records contain the record ID from the primary table. Here's an example of what I'm trying to accomplish:
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I have the following xml:
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If I have an ID, I would like to retrieve the next item that also has the same category as the item ID I have. So, for example, if I have ID=2, I would like to return the item with ID=4 (as item ID=3 has a different category).
This is my table.
I want ms sql query to get result
ID ProcessID Processname Date
105 123
Sammying 2010-04-22 12:09:02.827
If I run the following SQL script:
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best Way to find out if record exists?
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Just have a problem, I want people to join a mailing list, I just have a textbox and button. When a user enter's their email address, the address and time are inserted into a database. However, if the same email is added again I would like for a message to appear saying the record already exists.
Can someone show me how to do this, here is my current code:
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I need to get one record from rows. For example:
DB:
id, name, age, nick, gender , etc...
1, John, 18, gobb, M, ....
2, Andrew, 22 , AND, M, .....
3, Simon, 35, Lucky, M, ......
How to Get name (For example Simon) from DB and enter it into label? Or perhaps this is impossible?
I followed this BRILLIANT article and found out how to make a data layer, i just need the insert method in this code to return the ID of the record inserted.
For example, when the user captures the details, the save button is clicked, i will want to display in a label "Your Reference Number is "
try and have look at the article so you will understand how the code is, so it will not be hard to edit my code.
[URL]
I have a question regarding the record audit trail with EF. Recently we have started working on a application that has to have an record audit trail.Just few tables have Guid as PK, the rest of them have Int32 standard Identity setup.
The quick solution we have found is to wire up an event handler on SavingChanges and get all Added, Deleted and Modified records. But the problem is that the Inserted records for the tables that have Int32 as PK are audited with PK value of 0.
the code for the event handler looks like this:
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I don't know if I'm posting this in the right place - I have a feeling it can't be too difficult but I can't seem to figure it out. I've come across this problem many times and I've never solved it. I would imagine the scenario is commonplace - I have a table of Products with a PK of ProductID, and a table of related images with a FK of ProductID. Each product can have many images, but for my initial display I want to display one product record with one image record. I have a Sequence field in the Images table and I could pick the lowest one. Right and left Joins return too many records - if I have three images for Product 1 then Product 1 is listed three times.
I've gotten around this before using a flag in the Products table, or listing an image in both tables but I'm sure there must be a SQL statement that can get the information that I need.
Im trying to get the ID out of the record that i'm inserting using scope_identity. I've add the following line of code to the Insert statements in the sqldatasource - SET @insID = Scope_Identity() I've add the following line to the Insert parameter list
asp:Parameter
Name="insID"
Type="Int32"
Direction="Output"
I now want to insert a number records into the database using the following:
Dim insID As Object = e.Command.Parameters("@insID").Value ' gets out latest ID
Dim ordernumber As String = "CX" & insID.ToString & DateTime.Now.DayOfYear.ToString
sqlOrders.InsertParameters("orderNumber").DefaultValue = ordernumber
sqlOrders.InsertParameters("orderDate").DefaultValue = DateTime.Now
sqlOrders.InsertParameters("customerID").DefaultValue = userID
sqlOrders.InsertParameters("productID").DefaultValue = productID
sqlOrders.InsertParameters("totalPrice").DefaultValue = "0.00"
sqlOrders.InsertParameters("status").DefaultValue = "Paid"
I currently have this code in the SQLDataSource_Inserting sub but the first line only works once the record is inserted. How can i get the ID out as im inserting the parameters?
I use the following code to insert recode to a sql 2008 table, the field ID of DBProgram is IDENTITY, so SQL 2008 SERVER will pass a value to it automatically. How can I get the ID value of the record I just insert ?
DBProgram dbProgram = new DBProgram();
db.DBPrograms.InsertOnSubmit(dbProgram);
db.SubmitChanges();
I converted code from VB that works to c# to insert a record in an SQL daTA BASE.
The VB code is as follows:
Insert a new record into Contact
Dim connectionString As String = ConfigurationManager.ConnectionStrings("aspnetdbConnectionString").ConnectionString
Dim insertSql As String = "INSERT INTO Contact(UserId, Notes) VALUES(@UserId, @Notes)"
Using myConnection As New SqlConnection(connectionString)
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I am using Microsoft SQL database, C# and stored procedures. How would I check if record exists on the form or in SQL. I will design a from that has employee name, id and 3 other fields.
If record exists (I could for example test if EmployeeId exists, and then display a message saying that "record already exists". Should I do it in Stored procedure or in code?
