Asp - Update Multiple Records In SQL Server
May 19, 2010
Here is my situation: I use the SqlCommond to update some records in the SQL Server in a ASP.NET web site. Users can choose which records they want to update. Sometimes they may choose 40 or 60 records to update at a time.Is there any good way to do it? I do not want to do like it
foreach(string ID in List)
{
Update here
}
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Jan 5, 2011
I have a table line (ID, LineNo, LineName) having values as :
1, 1, <blank>
2, 2, <blank>
3, 3, <blank>
ID is PK with Auto-Increment and LinNo(I am manually incrementing through ASP.Net Page while record insertion) Now i have to write a query such that it updates LineName column from line table which is blank(as shown above) with values from table linet(linenamet) having values as :
a
b
c
My trial query is :
update line set LineName = (select linenamet from linet);
It gives ERROR as : Subquery returns more than 1 row
Expected Result : After Updation it should show line table as :
1, 1, a
2, 2, b
3, 3, c
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Apr 21, 2010
[Code]....
Update multiple records with subquery
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May 7, 2015
I get the fol error: An exception of type 'System.Data.SqlClient.SqlException' Occurred in System.Data.dll but was not handled in user code..Subquery returned more than 1 value. This is not permitted When the subquery Follows =,! =, <, <=,>,> = Or When the subquery is used as an expression.
IF EXISTS (SELECT CustomerId FROM Customers where CustomerId= (SELECT Id FROM @tblCustomers ))
UPDATE Customers
SET Name=(SELECT Name FROM @tblCustomers ), Country=(SELECT Country FROM @tblCustomers )
WHERE CustomerId=(SELECT Id FROM @tblCustomers );
Else
[code]...
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May 11, 2010
Is it ok to do multiple records update with the following requirements and be safe that the operation will not get timed out? A user requiring me to do the following using a web form:
I. Display a list of accounts in a GridView for multiple records insertion with no client side validation. Each account will accept new reading and posted date values.
II. Once the user presses the submit button, the following steps will be performed for each record at server side:
1. Check if new input data is for new or old period. A checkbox is to be selected in the form.
2. Check if new data has existing related records. Else this is first time insertion; get consumption result and save to db.
3. If records found, get previous reading and date.
4. Check if new reading and date is greater than previous reading/date else should inform the user.
5. Get new consumption = new reading - previous reading and some other operation.
6. A join select statement will be used to get the lowest and highest values (consumption) for current account.
7. Compare the new consumption result with previous consumption to give a status indication for new reading as either high, low or normal to be saved into the db. (# 6 values will be used here)
8. If everything goes ok, save new data into 3 different tables.
9. Display the GridView with new data.
The SQL server and the hosted page are in two different servers.
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Jan 25, 2011
using ASP.NET 2.0 SqlDataAdapter update returns 0 records. I have a simple application that stores Passenger's ticket info in a sql database.
when a user clicks "Create Reservation" I add a Passenger Information (name, destination, PNR) to dataset
and save dataset in ViewState.
Then when user clicks update, I pull the dataset from viewState and try to update database. The update is returning 0. what i am doing incorrectly?
protected void btn_CreateReservation_Click(object sender, EventArgs e)
{
DataRow dr ;
dr = dt.NewRow();
dr["Name"] = txtBox_Name.Text; dr["Destination"] = txtBox_Destination.Text;
dr["PNR"] = Convert.ToInt32(txtbox_PNR.Text); dt.Rows.Add(dr);
dt.AcceptChanges();
ViewState["MyTable"] = dsPassengers;
[Code]....
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Sep 9, 2010
I have to insert a multiple records under the single table.So i have to execute the command in the frontend for every records.
Inorder to avoid i write the query like this
insert into table1(field1,field2) values('1','Test1'),('2','Test2');
and also i tried
insert into table1(field1,field2)
SELECT "1","Test1"
Union all
SELECT "2","Test2"
But I am getting syntax error.
How to insert a multiple records under the single query?
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Sep 16, 2010
I am running an Update statement against an SQL database on server 2008. The update runs but does not update the record, but returns no errors.The database is part of a commercial help desk package called TrackIt 8.5 which was just a fresh install on a new web server and a new sql server. The update is running from a web form we use to automatically create active directory accounts. After the account is created the web form closes out the work order in the Trackit db. This was working fine when the system was running on Server 2003 and SQL server 2005. Running Trackit version 7.02.The login use to access the database has full permissions to read and write to the database, just as it did on the old server which never had an issue updating. Odd thing is, if I log onto the SQL server and make a change to any single field in that record. I can then run the web form and it updates the record normally.
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Nov 12, 2010
I have a web portal designed in ASP.NET in which we ask customers to enter the data. On the click of submit button all i have done is, just read the data and called a stored procedure which inserts that into a table. There seems to be a problem in SQL Server 2005 while inserting the data from multiple computers at the same time. We have tested in our lab with three computers, result is that we get the data inserted successfully in only one machine and on the other two machines we get error on page. I have used transactions in the stored procedure and also tried setting the isolation levels to READ_UNCOMMITTED, SERIALIZABLE and SNAPSHOT. Nothing seems to work properly.
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Oct 26, 2010
CDC or Change data capture is a new feature in SQL Server 2008, which is an ability to record changes to table data into another table without writing triggers or some other mechanism, Change data capture records the changes like insert, update, and delete to a table in SQL server.I have sql 2005 and I have created triggers and tables CDC to capture the data. everything functions good and the data is being updated in the _CDC tables. all i need to do now is to generate the updated data as a report (excel/html)- what should I do ......?i need to show only the updated columns when user selects the date periods ( Range between dates ) and the person name - i need to display any updated info about that person during that period. So this updated columns about this person should be displayed in excel formatted column wise.
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Feb 8, 2011
The goal is to update multiple row in the table. In my table there is 3 col, at here i will name it col1, col2 and col 3. The number of row in the table is, let say 10. Each row will have a different value in col1 and col2, where col3 value is static.
Something like the below;
|col1 |col2 |col3
Row1 |a |b |c
Row2 |aa |bb |c
Row3 |aaa |bb |c
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UPDATE table1 SET Col2 = CASE Col1
WHEN 'a' THEN '1'
WHEN'aa' THEN '2'
End where col3 IN (c)
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Sep 11, 2010
On satisfying the If condition, I need to run 2 MS SQL update queries. How can I accomplish this? I am using C# as the server side language.
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May 21, 2010
I have two tables, Customer and CustomerPhone.
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Jan 14, 2011
I have an inventory page with a gridview that shows 1 item per record, each item starts with a checkbox in the gridview. Currently users can select multiple records and hit the order button and everything has worked well. Now I have multiple pages in my gridview, and if a user selects a few records from the first page, and then goes to the second page, all the records (checked checkboxes) disappear from the first page.
[Code]....
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Mar 7, 2011
I am trying to design my logic to do this but I want to create a dataSet which will have records from several databases, The records all have the same layout.
I am reagin the connection string paths from a table in a database.
I am asking for your help in trying figure out my logic.
Should I use the connectionString builder in conjunction with a loop to Connect, read a record into a dataset Until therer are no more records to be read from my databse table with the database name/paths tables ?
Here is my beginning code which deals with one database:
[Code]....
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Feb 8, 2011
I have several rows in my database like this
ID Status Type Count Event
291 0 0 2 1
523 1 2 0 4
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Nov 29, 2010
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Jan 17, 2010
i want to build a datagrid bound to a datatable with several columns. One column has only a dropdownlist with the number of the rows in the datatable.
Here a samplescreenshot:
[URL]
I know how to bind the columns to a grid and its no problem to create such a dropdown list with the content for me, too. But i dont know how to sort the complete datatabl after changing one value of one dropdown listbox.
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Sep 14, 2010
im having a gridview in which im displaying records and status.....this gridview shows employee applied leave waiting for approvals..
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1) do i need to place a button on footer and do some write code behind?
2) or any other easier way?
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Sep 20, 2010
I've got a single table, with project information and schedule information. To make the data easier to present, I created a tab control with two panels (a detailsview in each). The first tab is for project info, the second tab is for schedule info (again, all fields in the same table). The problem is, if i change info in both tabs, and then hit the update button, only the data from one tab is added to the table. I think this problem is simple to fix, and boils down to the way I have the page organized, but I can't quite figure it out.
I've boiled my code down to the following conceptualized structure:
[code]....
When you click the update button, you return to the listview, but with only the information from your current tab saved. How can I get it to update from both detailsviews?
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Jul 10, 2010
I want to update multiple rows of gridview (only price field. for that i have added textbox) on click of update button which is outside of gridview.I have done following way
<asp:LinkButton ID="lnkUpdate" CssClass="BlueButton" runat="server" OnClick="lnkUpdate_Click">Update</asp:LinkButton>
[Code]....
Up to this its working fine but when no textbox updated then no need to go in for loop so i am looking for confiramtion before updating rows please help me how to do that becausei am less aware with javascript. another problem is textbox value disappear when page index changed how i can retain that values.
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Feb 16, 2010
I have a user control, that has an update panel and update progress control in it.
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Either way - how do I make it so that the update progress only displays for the proper user control?
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May 2, 2010
I have an update panel in a user control and I am adding multiple instances of it for example 5.
When that update panel refreshes the page load occurs 5 times.
How can I prevent it only for once?
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Nov 5, 2010
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