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/ SQL, SQL Server, MySQL, Big Data and NoSQL Wed, 19 Jun 2013 04:23:33 +0000 hourly 1 http://wordpress.com/ By: vikramkmahapatra http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-489717 Wed, 05 Jun 2013 04:13:05 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-489717 it is interesting to 10 PERCENT is not actually 10 percent of total records instead percentage of data pages spans for this table, so it is retrieving different number of rows each time it runs..

]]> By: SQL SERVER – Weekly Series – Memory Lane – #031 | 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-486710 Sat, 01 Jun 2013 01:31:12 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-486710 […] Limiting Result Sets by Using TABLESAMPLE – Examples Introduced in SQL Server 2005, TABLESAMPLE allows you to extract a sampling of rows from a table in the FROM clause. The rows retrieved are random and they are 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. […]

]]> By: aryanverma http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-433220 Thu, 07 Mar 2013 05:31:48 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-433220 The factor is 10 PERCENT is not the percentages of the table rows or tables records, it is percentages of the table’s data pages. (these lines are not in book sqlserver interview questions and answers sir, ) if have that’s wrong printed

]]> By: Parul http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-367474 Thu, 01 Nov 2012 11:24:39 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-367474 Thanks Pinal It’s really usefull

]]> By: madhivanan http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-336288 Thu, 23 Aug 2012 12:43:05 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-336288 Youn use either SET ROWCOUNT or TOP Operator

]]> By: pankaj http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-324206 Fri, 03 Aug 2012 12:58:44 +0000 http://blog.sqlauthority.com/2007/05/27/sql-server-2005-limiting-result-sets-by-using-tablesample-examples/#comment-324206 can i set rows limit in a table in sql server 2005 ?

]]> 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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