.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
david stephan
Gaurav Pal
Post New Web Links

Does TDS transfer all columns of every row? Even if they don't change?

Posted By:      Posted Date: October 22, 2010    Points: 0   Category :Sql Server


Does SQL Server Tabular Data Stream transfer all values of every row, even the values that don't change?  I read the spec a while ago and it appears the answer is "yes."

It seems like that would be an extreme bandwidth optimization and make possible a lot more flexible queries: SQL could detect that I did a join of a parent and child table, returned repeated rows of the parent for each child, but only pass the parent "once":


--p.* values are only shipped once -> saves bandwidth

Currently, I do separate queries for parent and child, which can result in an expensive repeated WHERE clause being executed twice or necessitate saving parent ids in a table variable...


View Complete Post

More Related Resource Links

How to change text in columns in SSRS?


I need to create a complex report and export it to Excel. 

In the first column header, text is displayed as "Hide Daily Columns", but I need the text to change as "Unhide Daily columns" when I click on it and when the text changes the columns under "daily" header (I have 3 columns under this header) present in the report shud be hidden and only weekly columns shud be visible. Any ideas please. I am new to SSRS and tried out many ways but didn't get it.

DataGridView>Edit Columns> Column Read Only property is unwilling to change

Hello, I am facing the following mystery: When changing the read only property of a column to false and reopening the "edit columns" window, it mysteriously turns back to true. Even when closing the designer and changing it in the designer code, the resulting execution does not allow edit, as well as when re-opening the designer you see true again.             this.numberDataGridViewTextBoxColumn1.DataPropertyName = "Number";             this.numberDataGridViewTextBoxColumn1.HeaderText = "Number";             this.numberDataGridViewTextBoxColumn1.Name = "numberDataGridViewTextBoxColumn1";             this.numberDataGridViewTextBoxColumn1.ReadOnly = true;//False is required We thought it might be related to data binding. rebinding the grid did not help as well. The is no other place in the code where it changes. Please advice, Thanks

How to change the size (width) of scorecard columns in Dashboard Designer?

Is there any way to change the size (width) of scorecard columns in Dashboard Designer?

Change order of columns in a list


Hi there

I'm looking for a way to change the order of the colums in a list in SharePoint 2010. I only have access to SharePoint Designer 2010 for editing the site.

I already looked at the function to create custom views for lists. However this are only useful when viewing the list as a whole, however when you edit an existing, or create a new entry you will see

  • first: the columns in the order in which they were created.
  • and second: all of the columns. i cant find a way to make certain columns invisible for the user.
I already looked through the functions that are given to me by SharePoint Designer 2010 when editing the columns of a list and I also checked for a way to change the order of the columns when surfing the actual website with Internet Explorer.

Does anyone know how to do this? Or am I just trying to find a function that doesn't make sense because it's covered by another feature?

Thanks for your help!

How to change the first column of auto-generated columns of a gridview.


Hi, I have a gridview which makes use of a datasource. The columns are auto-generated.

Right now, my task is to make the first column into a url column. Does anybody know how to do it?


How to change value in columns with same name in multiple tables


For a uncomplicated example, our database has 10 tables.  Each table contains the column COMPANY.  I need to change company from 1 to 4, and I don't want to have to update each table individually (because the number of tables is actually closer to 800).


COMPANY being a primary key isn't an issue. 


Is there a painless way to update the COMPANY field in all user defined tables?

Change Columns to be represented in calendar View




I have created a global calendar that takes events from my subsite calendar. It works great, the only problem is that I cannot change the default Title column in Month View Title, don't know what code to use. I know I should create a content Type to hold my custom column, so I'm using the same columns in all my subsites, I want to change Title as the column in "Month View Title", "Week View Title", "Week View Sub Heading", "Day View Title" and "Day View Sub Heading". I will continue my search but if anyone knows I'll be glad to get some help. Thanks.

Updating all the columns even the ones with no change, good or bad?


I am writing my Stored Procedure to update any rows that have changed, by default all the variables in the SP are set to NULL, so what I am doing is..


	UPDATE Table1
	SET FirstName = ISNULL(@FirstName , FirstName )
		, LastName = ISNULL(@LastName , LastName )
		, PhoneNumber = ISNULL(@PhoneNumber , PhoneNumber )
	WHERE TableID = @TableID 


So basically if the user didn't pass in the variables they will be NULL and they will be updated to the same value.


Is this a bad practice? this query will be running constantly to update different values.

How to change alternative color in asp.net gridview rows and columns?

In this article, I will show you how to set alternative color for gridview rows and columns in asp.net.

MS SQL Server: Search All Tables, Columns & Rows For Data or Keyword Query

If you need to search your entire database for specific data, this query will come in handy.

So when a client needs a custom report or some sort of custom development using Great Plains, most of the time I will have to track down the data in the system by running this query and find the table(s) it is in.

Adding Multiple Columns and Rows in GridView without using a Database

This article describes on how to add multiple columns and rows in GridView without using a database. Basically the GridView will be populated with data based on the values entered in each TextBoxes on Button Click and retain the GridView data on post back.

add columns with textboxes in gridview using C#

'm working on a shopping cart in a website and I have my items(which have been added to the cart) in an arraylist. And using these values I've read the rest of the values from the db and and have populated on the gridview successfully.

Custom Editing Behavior for DataGridView TextBox Columns

For various reasons I'm using a DataGridView instead of a ListView, and while configuring the DataGridView to look like a ListView wasn't much of a problem, there's one thing that got on my nerves, which is the behavior of textbox cells in edit mode: It is much too easy to leave the edit mode accidentally, simply by pressing the cursor keys at the wrong time. For example when the text caret is positioned behind the last character of the textbox cell content, and you press the right arrow key

HttpContext.Items and Server.Transfer/Execute

The problem was basically that when a Server.Transfer call was applied the script container (and also various ClientScriptProxy script embedding routines) would potentially fail to load up the specified scripts.

Using Conditional Split data Transfer in SSIS 2008

This article uses the Integration Services Conditional Split Data Transformation element to filter and transfer data from a set of flat text files to SQL Server database table. The concept can be easily extended to apply to any other source or destination such as Microsoft Excel. This scenario is useful in creating denormalized database tables in a reporting and analysis situation.

Sorting GridView Columns Manually

We all know that GridView columns can be sorted automatically when SQLDataSource is being used. But what if you are not using SqlDataSource to populate the GridView. Sorting the GridView manually is pretty straight forward task take a look at the code below

How to Localize Windows Forms and Change the Language at Runtime

Localization is the process of customizing your application to a particular language, culture or locale. Visual Studio provides support for localizing Windows Forms with much ease. In this article, we will see how to localize windows forms and give the user the ability to change to his preferred language at runtime.
When you run a localized application, the appearance is determined by two culture values. The UICulture property is used to specify which resource files will be loaded for the form. The Culture property, on the other hand, determines how strings such as dates, numerals, and currency amounts are formatted.
Let us see the steps required to create a localized form. You can then expand this example and adopt the same approach for the rest of the forms in your project
ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend