Comments on: SQL SERVER – 2005 Limiting Result Sets by Using TABLESAMPLE – Examples http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/ Personal Notes of Pinal Dave Fri, 10 Feb 2012 02:12:04 +0000 hourly 1 http://wordpress.com/ By: rajadurai http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-154988 Mon, 08 Aug 2011 10:18:22 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-154988 what is the purpose of ranking function pls explain sir…

]]> By: Ashish Kadam http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-149825 Thu, 21 Jul 2011 13:43:34 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-149825 hi sourabh,
basically your suggested newid() function gives some records always but in Tablesample case, it gives 0 or any no. of values, which are not predactable, so system tested properly, using that.

]]> By: SQL SERVER – Interview Questions and Answers – Frequently Asked Questions – Day 18 of 31 « Journey to SQLAuthority http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-149036 Mon, 18 Jul 2011 01:31:41 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-149036 [...] TABLESAMPLE allows you to extract a sampling of rows from a table in the FROM clause. The rows retrieved are random and they are not in any order. This sampling can be based on a percentage of number of rows. You can use TABLESAMPLE when only a sampling of rows is necessary for the application instead of a full result set. (Read more here) [...]

]]> By: Mani http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-77117 Mon, 21 Jun 2010 06:02:52 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-77117 Really a very helpfull article.
Thanks alot :)

]]> By: sly http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-57005 Sun, 25 Oct 2009 13:24:08 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-57005 Hello!

BOL: When using TABLESAMPLE against databases that are upgraded to SQL Server 2005, the database’s compatibility level must be set to 90.

Check compatibility level of ADW.

Regards,
Sly

]]> By: Ganesh http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-56406 Sun, 04 Oct 2009 14:08:04 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-56406 Hi Pinal,

When I copy your example and executed in Adventureworks Data base it is executed successfully But when I executed similar kind of query in my database “RND” it gives me error as it is posted by sudarsan earlier.

Query:
select empno,fname from dbo.Employees
TABLESAMPLE SYSTEM (20 PERCENT)

Error: Msg 102, Level 15, State 1, Line 3
Incorrect syntax near ‘SYSTEM’.

Are there any data base properties to be set to use this TABLESAMPLE ?

Please reply this comment as i could not get the solution from long time.

Regards,
GK

]]> By: Sourabh Sachdeva http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-55555 Thu, 03 Sep 2009 11:06:49 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-55555 Hi Pinal,

I think for this you can use newid() function of sql server.

Like if anyone want to select 10 rows from table in random order. He can use

select top 10 * from Table_Name order by newid()

]]> By: SQL SERVER - 2008 - Interview Questions and Answers - Part 8 Journey to SQL Authority with Pinal Dave http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-47489 Thu, 26 Feb 2009 12:08:03 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-47489 [...] What do you mean by Table Sample? TABLESAMPLE allows you to extract a sampling of rows from a table in the FROM clause. The rows retrieved are random and they are not in any order. This sampling can be based on a percentage of number of rows. You can use TABLESAMPLE when only a sampling of rows is necessary for the application instead of a full result set. (Read More Here) [...]

]]> By: SQLAuthority News - Best Articles on SQLAuthority.com Journey to SQL Authority with Pinal Dave http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-47215 Tue, 24 Feb 2009 12:08:48 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-47215 [...] SQL SERVER – 2005 Limiting Result Sets by Using TABLESAMPLE – Examples [...]

]]> By: sudharson http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-34290 Wed, 12 Mar 2008 11:46:26 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-34290 HI ,
Im getting an error like “Server: Msg 170, Level 15, State 1, Line 1
Line 1: Incorrect syntax near ‘system’.”

When i try to use run the following query.

select test from test tablesample system(10 percent)

]]> By: bdavies http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-33544 Wed, 06 Feb 2008 18:29:45 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-33544 Thank you, this was helpful

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