Skip to main content

SQL Server 2008 - Inline Variable Assignment

Microsoft SQL Server 2008 brings in a new feature of 'Declaring and Assigning' a variable all in a single line. Earlier, while using SQL 2005 and earlier versions, we had to declare a variable before assigning it. This feature is explained in detail below.

In SQL 2005 and earlier versions we had to write:
Declare @age int
Declare @name nvarchar(25)
Declare @date date
Set @age = 25
Set @name = "Garry"
Set @date = GETDATE()

With SQL 2008 we can combine both these statements to write
Declare @age int = 25
Declare @name nvarchar(25)
Declare @date @date = GETDATE()

Advantage : This helps us to write less code, yet get the same functionality.

Even though this feature has been available it is not being used in many projects because of backward compatibility issue. If the same code is being used on both 2005 and 2008 server we would prefer writing in a format compatible to both.

Do share with us :  Would you like to use this new method? If not, why?

Comments

Popular posts from this blog

Bytes to TeraBytes.

Converting from bytes to terabytes is very easy considering that terabyte = 1024*Gigabyte              = 1024 * 1024 * Megabyte              = 1024 * 1024 * 1024 KiloByte              = 1024 * 1024 * 1024 * 1024 * Byte Query below gives number of documents in a media and the total size of the documents. See how you have used Alias in the query SELECT        [MEDIA] = X.media_id,         [TOTAL] = COUNT(*),       [Size_KB] = SUM (Size_MB) FROM       (       SELECT              d.edoc_id,              d.media_id ,             SIZE_MB =  (                         CAST(ISNULL(d.Size1,0) AS DECIMAL) +      ...

Adding a linked Server using the GUI

Adding a linked Server using the GUI There are two ways to add another SQL Server as a linked server.  Using the first method, you need to specify the actual server name as the “linked server name”.  What this means is that everytime you want to reference the linked server in code, you will use the remote server’s name.  This may not be beneficial because if the linked server’s name changes, then you will have to also change all the code that references the linked server.  I like to avoid this method even though it is easier to initially setup.  The rest of the steps will guide you through setting up a linked server with a custom name: To add a linked server using SSMS (SQL Server Management Studio), open the server you want to create a link from in object explorer. In SSMS, Expand Server Objects -> Linked Servers -> (Right click on the Linked Server Folder and select “New Linked Server”) Add New Linked Server The “New Linked Server” Dialog a...

JavaScript Interview Questions

This is a compilations of all the interview questions related to Javascript that i have encountered.  Q: Difference between window.onload and onDocumentReady? A: The onload event does not fire until every last piece of the page is loaded, this includes css and images, which means there’s a huge delay before any code is executed. That isnt what we want. We just want to wait until the DOM is loaded and is able to be manipulated. onDocumentReady allows the programmer to do that. Q:  What is the difference between == and === ? A: The == checks for value equality, but === checks for both type and value. Few examples: "1" == 1; // value evaluation only, yields true "1" === 1; // value and type evaluation, yields false "1" == true; // "1" as boolean is true, value evaluation only, yields true "1" === false; // value and type evaluation, yields false Q: What does “1″+2+5 evaluate to? What about 5 + 2 +...