Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

Practical demo required

Posted on 2013-01-22
2
151 Views
Last Modified: 2013-11-07
Is there any practical demo for creating the page split and tracking the changes happening in GAM,SGAM?

Is there any practical demo for creating the ROW_IN_DATA and after creation will include column will varchar(max) causing the row_overflow_data to introduced in the page. I would like to see the introduction of 24 byte pointer pointing from original page row_offset to row_overflow_data allocation unit?
0
Comment
2 Comments
 
LVL 28

Accepted Solution

by:
Ryan McCauley earned 100 total points
ID: 38813149
This is some pretty specific knowledge - would it be out of line to ask what you're trying to learn from it? It's all internal structure to the SQL Engine, and while it's interesting, i'm not sure how you'd use it in troubleshooting.

That said, here are some links to a bit more reading you can do:

http://sqlserverpedia.com/wiki/Data_Pages_%26_Extents
http://msdn.microsoft.com/en-us/library/ms190969(v=sql.105).aspx
http://msdn.microsoft.com/en-us/library/ms189087(v=sql.105).aspx

Also, you should be able to demonstrate this by running through a few steps:

1. Create a table with a VARCHAR(MAX) column
2. Insert something into that column that's less than 8K in length. This data will be stored in the row itself.
3. Update that column so that it's longer than 8K - SQL will move this data to long object storage, and include a pointer in the row in its place.

Is there something more specific that you're looking for?
0
 
LVL 5

Author Comment

by:VIVEKANANDHAN_PERIASAMY
ID: 38870606
I'm reading this topic.Will come back on this question within 2 days.
0

Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Why is this different from all of the other step by step guides?  Because I make a living as a DBA and not as a writer and I lived through this experience. Defining the name: When I talk to people they say different names on this subject stuff l…
The Delta outage: 650 cancelled flights, more than 1200 delayed flights, thousands of frustrated customers, tens of millions of dollars in damages – plus untold reputational damage to one of the world’s most trusted airlines. All due to a catastroph…
Using examples as well as descriptions, and references to Books Online, show the documentation available for date manipulation functions and by using a select few of these functions, show how date based data can be manipulated with these functions.
Via a live example, show how to set up a backup for SQL Server using a Maintenance Plan and how to schedule the job into SQL Server Agent.

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question