How For XML path works behind the scene?

Question

0.00/5 (No votes)

See more:

Hi Everyone,

Can anyone please tell me how for xml clause works behind the scenes like the following query:

SQL

select stuff((select ','+ename from emppck for xml path('')),1,1,'')

Above one produces resultset as the comma seperated of ename values (1 row).

What exactly is happening behind the scene, what role the database engine has here. Please comment on this.

Regards
Chaithanya M

Posted 22-Apr-11 5:17am

M.CHAITHANYA

Updated 22-Apr-11 5:51am

Sandeep Mewara

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

E.F. Nijboer · Answer 1 · 2011-04-22T05:50:00

SQL Server 2005 recognizes XML data type columns. The PATH method allows for XPath like expression as a column name. Have a look at both links for more info.

http://msdn.microsoft.com/en-us/library/ms345117%28v=sql.90%29.aspx[^]

http://msdn.microsoft.com/en-us/library/ms345137%28v=sql.90%29.aspx[^]

Good luck!