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What does this mean?

Author
14 Nov 2006 11:33 PM
David Thielen
I'm creating a database with osql and getting the message:
1> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> Warning: The table
'TemplateM
ap' has been created but its maximum row size
(11038) exceeds the maximum number of bytes per row (8060). INSERT or UPDATE
of
a row in this table will fail if the resulting row length exceeds 8060 bytes.

Any idea what this means?

--
thanks - dave
david_at_windward_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm

Author
15 Nov 2006 2:28 AM
Hari Prasad
Hello,

This is a warning message and the  reason for the warning is that maximum
size of a row on your table
exeecds 8kb. This restriction is by SQL 2000 design. SQL Server engine
stores it's data on 8kb pages & a single
record must fit in a single page and cannot be spanned to multiple pages.

Try to reduce no of fields on your table.


Thanks
Hari


Show quote
"David Thielen" <thielen@nospam.nospam> wrote in message
news:C224EC5E-439E-4BF2-B8D0-0D9133187045@microsoft.com...
> I'm creating a database with osql and getting the message:
> 1> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> Warning: The table
> 'TemplateM
> ap' has been created but its maximum row size
> (11038) exceeds the maximum number of bytes per row (8060). INSERT or
> UPDATE
> of
> a row in this table will fail if the resulting row length exceeds 8060
> bytes.
>
> Any idea what this means?
>
> --
> thanks - dave
> david_at_windward_dot_net
> http://www.windwardreports.com
>
> Cubicle Wars - http://www.windwardreports.com/film.htm
>
>
Author
15 Nov 2006 3:21 AM
David Thielen
does this include the IMAGE type? Because we have records where that one
column will be over 8K.

The rest I can reduce.

--
thanks - dave
david_at_windward_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm




Show quote
"Hari Prasad" wrote:

> Hello,
>
> This is a warning message and the  reason for the warning is that maximum
> size of a row on your table
> exeecds 8kb. This restriction is by SQL 2000 design. SQL Server engine
> stores it's data on 8kb pages & a single
> record must fit in a single page and cannot be spanned to multiple pages.
>
> Try to reduce no of fields on your table.
>
>
> Thanks
> Hari
>
>
> "David Thielen" <thielen@nospam.nospam> wrote in message
> news:C224EC5E-439E-4BF2-B8D0-0D9133187045@microsoft.com...
> > I'm creating a database with osql and getting the message:
> > 1> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> Warning: The table
> > 'TemplateM
> > ap' has been created but its maximum row size
> > (11038) exceeds the maximum number of bytes per row (8060). INSERT or
> > UPDATE
> > of
> > a row in this table will fail if the resulting row length exceeds 8060
> > bytes.
> >
> > Any idea what this means?
> >
> > --
> > thanks - dave
> > david_at_windward_dot_net
> > http://www.windwardreports.com
> >
> > Cubicle Wars - http://www.windwardreports.com/film.htm
> >
> >
>
>
>
Author
15 Nov 2006 3:24 AM
Hari Prasad
Hi,

No, Image and Text data type will be stored seperately and will not be
covered in this 8 KB.

Thanks
Hari

Show quote
"David Thielen" <thielen@nospam.nospam> wrote in message
news:D1A9C6AC-86D2-4763-A4D4-6935F94B7B92@microsoft.com...
> does this include the IMAGE type? Because we have records where that one
> column will be over 8K.
>
> The rest I can reduce.
>
> --
> thanks - dave
> david_at_windward_dot_net
> http://www.windwardreports.com
>
> Cubicle Wars - http://www.windwardreports.com/film.htm
>
>
>
>
> "Hari Prasad" wrote:
>
>> Hello,
>>
>> This is a warning message and the  reason for the warning is that maximum
>> size of a row on your table
>> exeecds 8kb. This restriction is by SQL 2000 design. SQL Server engine
>> stores it's data on 8kb pages & a single
>> record must fit in a single page and cannot be spanned to multiple pages.
>>
>> Try to reduce no of fields on your table.
>>
>>
>> Thanks
>> Hari
>>
>>
>> "David Thielen" <thielen@nospam.nospam> wrote in message
>> news:C224EC5E-439E-4BF2-B8D0-0D9133187045@microsoft.com...
>> > I'm creating a database with osql and getting the message:
>> > 1> 2> 3> 4> 5> 6> 7> 8> 9> 10> 11> 12> 13> 14> 15> Warning: The table
>> > 'TemplateM
>> > ap' has been created but its maximum row size
>> > (11038) exceeds the maximum number of bytes per row (8060). INSERT or
>> > UPDATE
>> > of
>> > a row in this table will fail if the resulting row length exceeds 8060
>> > bytes.
>> >
>> > Any idea what this means?
>> >
>> > --
>> > thanks - dave
>> > david_at_windward_dot_net
>> > http://www.windwardreports.com
>> >
>> > Cubicle Wars - http://www.windwardreports.com/film.htm
>> >
>> >
>>
>>
>>
Author
15 Nov 2006 4:03 AM
Peter Yang [MSFT]
Hello David,

As Hari mentioned, in SQL Server 7.0 and SQL Server 2000 we allow to create
a table that contains variable columns with a total length GT. 8060 (the
total sum of fixed length columns must be LT 8060 as well as the length of
an individual column ).

However when exacting an inset or update we fail the statement if the
actual length is GT 8K. In SQL 2005 this execution will succeed

For example

  Create table foo (a int, b varchar(5000), c varchar(5000))

  If both varchars contain 5000 bytes the insert will succeed in 2000 and
it will fail in the previous releases.

The 8060 limit for individual varchar/varbinary columns is still in place.

Surpassing the 8,060 row size limit may impact performance. This is because
SQL Server still maintains a limit of 8 KB per page. When a combination of
varchar, nvarchar, varbinary, or sql_variant columns exceeds this limit,
SQL Server moves the record column with the largest width to another page,
while maintaining a 24-byte pointer on the original page. Moving large
records to another page happens dynamically as records are lengthened based
on update operations. Update operations that shorten records may result in
records moved back to the original page. In addition, querying and
performing other select operations such as sorts or joins on large records
that contain row-overflow data slows processing time.

To fetch a column values that has been pushed off the main row requires an
extra I/O. Besides, having wide rows also reduces the scan density -
because fewer rows fit on a page.

If you find the table has many rows with overflow data then you should
seriously consider normalizing the table.

In SQL 2005, VarChar(MAX), NVarChar(MAX) and VarBinary(MAX) allow storage
of data up to 2 gigabytes. Image/Text datatype in SQL 2000/2005 is also
stored seperately and will not be covered in 8KB size.

If anything is unclear, please feel free to let's know. Thank you.

Best Regards,

Peter Yang
MCSE2000/2003, MCSA, MCDBA
Microsoft Online Community Support
==================================================
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professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
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handled working with a dedicated Microsoft Support Engineer by contacting
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==================================================
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Author
15 Nov 2006 4:40 AM
David Thielen
Thank you - both of you.

Peter - This is a great explanation - I understand why as well as what and
that always helps a lot.

--
thanks - dave
david_at_windward_dot_net
http://www.windwardreports.com

Cubicle Wars - http://www.windwardreports.com/film.htm




Show quote
"Peter Yang [MSFT]" wrote:

> Hello David,
>
> As Hari mentioned, in SQL Server 7.0 and SQL Server 2000 we allow to create
> a table that contains variable columns with a total length GT. 8060 (the
> total sum of fixed length columns must be LT 8060 as well as the length of
> an individual column ).
>
> However when exacting an inset or update we fail the statement if the
> actual length is GT 8K. In SQL 2005 this execution will succeed
>
> For example
>
>   Create table foo (a int, b varchar(5000), c varchar(5000))
>
>   If both varchars contain 5000 bytes the insert will succeed in 2000 and
> it will fail in the previous releases.
>
> The 8060 limit for individual varchar/varbinary columns is still in place.
>
> Surpassing the 8,060 row size limit may impact performance. This is because
> SQL Server still maintains a limit of 8 KB per page. When a combination of
> varchar, nvarchar, varbinary, or sql_variant columns exceeds this limit,
> SQL Server moves the record column with the largest width to another page,
> while maintaining a 24-byte pointer on the original page. Moving large
> records to another page happens dynamically as records are lengthened based
> on update operations. Update operations that shorten records may result in
> records moved back to the original page. In addition, querying and
> performing other select operations such as sorts or joins on large records
> that contain row-overflow data slows processing time.

> To fetch a column values that has been pushed off the main row requires an
> extra I/O. Besides, having wide rows also reduces the scan density -
> because fewer rows fit on a page.

> If you find the table has many rows with overflow data then you should
> seriously consider normalizing the table.
>
> In SQL 2005, VarChar(MAX), NVarChar(MAX) and VarBinary(MAX) allow storage
> of data up to 2 gigabytes. Image/Text datatype in SQL 2000/2005 is also
> stored seperately and will not be covered in 8KB size.
>
> If anything is unclear, please feel free to let's know. Thank you.
>
> Best Regards,
>
> Peter Yang
> MCSE2000/2003, MCSA, MCDBA
> Microsoft Online Community Support
> ==================================================
> Get notification to my posts through email? Please refer to
> http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
> ications
> <http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx>.
> Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
> where an initial response from the community or a Microsoft Support
> Engineer within 1 business day is acceptable. Please note that each follow
> up response may take approximately 2 business days as the support
> professional working with you may need further investigation to reach the
> most efficient resolution. The offering is not appropriate for situations
> that require urgent, real-time or phone-based interactions or complex
> project analysis and dump analysis issues. Issues of this nature are best
> handled working with a dedicated Microsoft Support Engineer by contacting
> Microsoft Customer Support Services (CSS) at
> <http://msdn.microsoft.com/subscriptions/support/default.aspx>.
> ==================================================
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
>

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