Get Record Count for each table in a database.

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Get Record Count for each table in a database.

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Hari.Sharma

Posted Friday, September 28, 2007 1:07 AM

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Comments posted to this topic are about the item Get Record Count for each table in a database.

Cheers,
Hari
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Post #403906

toniupstny

Posted Sunday, August 10, 2008 8:37 AM

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An alternative without cursor is:

sp_msforeachtable 'select ''?'', count(*) Rows from ?'

Toni

Post #549861

Jeff Moden

Posted Sunday, August 10, 2008 9:37 AM

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toniupstny (8/10/2008)

An alternative without cursor is:

sp_msforeachtable 'select ''?'', count(*) Rows from ?'

Toni

Ummm.... not quite correct, Toni. If you go and look at the code for sp_MSForEachTable, you'll find a monster cursor that is typically slower than any cursor you would ever intentionally build because it was written to handle just about any size code. The cursor that Hari wrote will likely run much faster than using sp_MSForEachTable.

--Jeff Moden

"RBAR is pronounced "ree-bar" and is a "Modenism" for "Row-By-Agonizing-Row".

First step towards the paradigm shift of writing Set Based code:
Stop thinking about what you want to do to a row... think, instead, of what you want to do to a column."

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Post #549867

toniupstny

Posted Sunday, August 10, 2008 10:18 AM

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Thanks Jeff.

I was just looking through the code for the sp_MSforeach procedures (generated a Create for sp_MSforeachtable, sp_MSforeachworker and the sp_ MSforeach_worker) to see why the table one couldn't be called from the database one. I saw the cursor like you said right there so was coming back to post a "NEVERMIND"!

Hey... I learned something anyway... thanks again.

Toni

Post #549872

RBarryYoung

Posted Sunday, August 10, 2008 10:27 AM

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Now this view can get the estimated row counts (and a lot more besides)without cursors: http://www.sqlservercentral.com/scripts/tables/62545/

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc. "Performance is our middle name."

Post #549876

Jeff Moden

Posted Sunday, August 10, 2008 10:32 AM

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Aye... that's more like it.

The only thing I'd be worried about is... do you need to update usage (DBCC UPDATEUSAGE) as you do in SQL Server 2000 to get accurate row counts?

--Jeff Moden

Post #549878

Jeffrey Williams 3188

Posted Sunday, August 10, 2008 10:43 AM

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For SQL Server 2005 and greater - there is no need to cursor at all. Just use the DMV sys.dm_db_partition_stats as in the following:

 Select object_schema_name(object_id) As SchemaName
        ,object_name(object_id) As ObjectName
        ,row_count
   From sys.dm_db_partition_stats
  Where index_id < 2
    And object_schema_name(object_id) <> 'sys'
  Order By object_schema_name(object_id);

Jeffrey Williams
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Post #549879

Jeff Moden

Posted Sunday, August 10, 2008 10:56 AM

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Jeffrey Williams (8/10/2008)

For SQL Server 2005 and greater - there is no need to cursor at all. Just use the DMV sys.dm_db_partition_stats as in the following:

 Select object_schema_name(object_id) As SchemaName
        ,object_name(object_id) As ObjectName
        ,row_count
   From sys.dm_db_partition_stats
  Where index_id < 2
    And object_schema_name(object_id) <> 'sys'
  Order By object_schema_name(object_id);

Again, I ask... do you have to update usage for the rowcounts to be accurate?

--Jeff Moden

Post #549884

RBarryYoung

Posted Sunday, August 10, 2008 11:03 AM

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Jeff Moden (8/10/2008)

Again, I ask... do you have to update usage for the rowcounts to be accurate?

Gimme time to eat lunch, Jeff! :P

Yes, you do. But unless it is a table with rapidly shifting contents, you shouldn't have to do it every time. Besides, I couldn't put it in my view anyway. :)

-- RBarryYoung, (302)375-0451 blog: MovingSQL.com, Twitter: @RBarryYoung
Proactive Performance Solutions, Inc. "Performance is our middle name."

Post #549885

Jeff Moden

Posted Sunday, August 10, 2008 11:07 AM

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rbarryyoung (8/10/2008)

Gimme time to eat lunch, Jeff! :P :)

Heh... hey! I need to know... does brother Darth have to take off the Chevy look-alike to eat?

--Jeff Moden

Post #549886

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