ADO.NET :: Number Of Datatable In One Dataset Can Contain?
Aug 6, 2010
i have one question for my project. i am fetching all users data in one dataset, but each user will be in unique datatable to avoid no. of database connection i will fetch data in one single transaction no. of user are more than 10000 ..is it practical to store more than 10000 tables in one single dataset what will be then performance issue for the same, it will be the diffrent application for my project to generate this much of data. how many no. of table one dataset can contain in visual studio 2008 with 3.5 framework?
If I need to fetch one whole column from Table1 in the DB, should I fetch it using datatable or dataset? I can do both ways. I mean ok I should use Datatable. Why is that? What would happen if I use Dataset? ok that's what I wanted to know. So there's memory issue. I mean whatever I use be it Datatable or Dataset, both will be fetching only ONE column frommy table in DB. How is Dateset's gonna use more memory then?
I have created alot of stored procedures in my application that return the result of a query in a datatable object. I never use a dataset. Why would I ever use a dataset over simply returning the result of a query as a datatable object?
How to Sort The datatable in asp.net. after binding the dataset values i have stored into one table how can i sort the values of the dataset in asp.net with C#
I have 2 views in sql server and I create a dataset with those 2 views as datatables. Now I need to create a datatable and programmatically fill it with the other 2 datatables. Take the 2 datatable and create a third one in the dataset not create a third view in sql server.
Return myDataReader I have a function which is retuning a datareader to various sections of my website which is then being bound to dropdown lists, gridviews, etc. Normally the last line in a function when is the data reader and connection getting closed? Is it best practive to return a data reader or a dataset/datatable (or something even better than these two)?
I need to add rows to an existing (maybe) datatable in a dataset that combines the IIS6 index search with my own sql table. I keep getting object reference errors.
I'm returning one table. My understanding is that a DataSet can be made of more than one DataTable. I also understand that I can use either of these to return my one table.
Is it better to use the DataTable when I have one table to return instead of a DataSet? Is there any advantage of not using the DataSet in a situation like this? Is there a disadvantage to using the DataSet when only one table is being returned? Does this even matter?
I have a simple web method written in the code-behind (not a separate asmx) of a test aspx page.
All it does is return a DataTable(or DataSet) both are failing, gives a blank 500 error saying "There was an error processing the request"
If I switch the return variable type to String, it works fine
I think my issue has to do with the version of the System.Web.Extensions, is that the assembly that actually contains the JSON communication implementation?
I've read all kinds of tutorials about how it should be possible to return the DataTable to javascript and then read the properties with javascript syntax.
For some reason it isn't working for me.
My web extensions is imported through my web.config with the following version
make a query which will give me 200,000 results and bind it to the datatable but the error will pop out saying out of memory or request timed out.Can datatable/dataset handle these records or is my current server's hardware needs a little upgrade?Actually we are gettings millions of data and i dont have any idea how to solve this one? Have you worked on this kind of data? Do you have any idea on how to send my command from server A to server B while server A also processing request and will not wait for server B's result and server B will just update the records in my database, i think this can solve my problem if doing it in parallel.
I need your help / guidence for doing custom paging in c#, through sqlserver. so that i can have data in dataset/datatable according to the pagesize given, not all the data in dataset. some code /url .......with full discrption if possible.
We are in the process of migrating our current asp.net gridviews to silverlight grids. The challenge that I am facing here is that in the gridview, the grid is bind to a dataset/datatable. But in silverlight, I do not have dataset/datatable available in the silverlight class. So only option is to create a Webservice and convert the dataset that I am currently getting from business layer to a class that imlements IList<> (unless there are any other ways). Now to convert this dataset to Ilist, I have to loop through the dataset to load the List. In my current dataset I have almost 10,000 records or even more in some cases. So the response time will be really slow.Are there anyways to
1) Load the List from dataset directly without looping through ?
2) Fetch the data from database directly to a List without having loading the dataset ?
I am Using Treeview Control in my application. My all menue detail is available in Db and i am getting it in dataset. I am binding my TreeviewControl with Dataset and it shows all nodes properly. I am able to done this at 2 levels. But i can't do this work at n-number of nodes. how i can do this for n-number of nodes using Dataset. Waiting for quich Response.
