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Posted Friday, November 30, 2012 5:18 AM


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No as the row is not bigger than 8060 bytes to use row overflow


Rows cannot span pages,



This restriction is relaxed for tables that contain varchar, nvarchar, varbinary, or sql_variant columns. When the total row size of all fixed and variable columns in a table exceeds the 8,060 byte limitation, SQL Server dynamically moves one or more variable length columns to pages in the ROW_OVERFLOW_DATA allocation unit, starting with the column with the largest width. This is done whenever an insert or update operation increases the total size of the row beyond the 8060 byte limit.




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Post #1391231
Posted Friday, November 30, 2012 5:44 AM


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sanket kokane (11/30/2012)
ScottPletcher (11/29/2012)
Depends on how many bytes in table, and how long a row is.

A SQL page is 8K, with 8060 total bytes available for data. Each row resides on a single page (excluding special column types).



you sounds like only one row per page ,right ?


No, he said each row resides on a single page, not each page contains only one row.



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Post #1391251
Posted Friday, November 30, 2012 5:58 AM


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thanks for clearing out

any other good link/eBook related to architecture other than MSDN ?


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Post #1391259
Posted Friday, November 30, 2012 6:45 AM


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SQL Server 2008 Internals by Kalen Delaney
Paul Randal's blog.



Gail Shaw
Microsoft Certified Master: SQL Server 2008, MVP
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

We walk in the dark places no others will enter
We stand on the bridge and no one may pass

Post #1391277
Posted Sunday, December 2, 2012 10:25 PM


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GilaMonster (11/30/2012)
SQL Server 2008 Internals by Kalen Delaney
Paul Randal's blog.



Thanks Gail.


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