Table Data Sizes

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Table Data Sizes

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TravisDBA

Posted Wednesday, December 08, 2010 2:47 PM

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Please do remember that sysindexes.rowcnt is only as correct as your latest indexes and stats are up to date. If you have not done this in a while then that column will not be correct. BigGrin

"Technology is a weird thing. It brings you great gifts with one hand, and it stabs you in the back with the other. ... BigGrin

Post #1032181

TravisDBA

Posted Wednesday, December 08, 2010 3:56 PM

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After conversing with SanDroid, I have amended this query slightly so that the schema name and indid is displayed as well. Not all of you may need to see all of this detail. If so, just filter it out. Notice the sysusers join doesn't always match up sometimes. BigGrin

SELECT
sys.schemas.name as [Schema Name],
sysusers.name as TABLE_USER,
sysobjects.name as TABLE_NAME,
sysindexes.rowcnt as ROWS,
sysindexes.indid as [Index],
sum(case when sysindexes.indid in (0, 1, 255) then convert(dec(15),reserved*8)else 0 end) as RESERVED_Kb,
sum(case when sysindexes.indid < 2 THEN convert(dec(15),dpages*8) ELSE 0 END) +
sum(case when sysindexes.indid = 255 THEN convert(dec(15),used*8) ELSE 0 END) AS DATA_Kb,
(sum(case when sysindexes.indid in (0, 1, 255) then convert(dec(15),used*8) ELSE 0 END) -
sum(case when sysindexes.indid < 2 THEN convert(dec(15),dpages*8) ELSE 0 END) -
sum(case when sysindexes.indid = 255 THEN convert(dec(15),used*8) ELSE 0 END)) AS INDEX_SIZE_Kb,
sum(case when sysindexes.indid in (0, 1, 255) then convert(dec(15),(reserved - used)*8) else 0 end) AS UNUSED_Kb
FROM sysobjects (NOLOCK)
INNER JOIN sysindexes (NOLOCK) ON sysobjects.id = sysindexes.id
LEFT JOIN sysusers (NOLOCK) ON sysobjects.uid = sysusers.uid
LEFT JOIN sys.schemas (NOLOCK) ON sysobjects.UID = sys.schemas.schema_id
WHERE (sysobjects.type = 'U')
AND (sysindexes.indid = 1)
group by sys.schemas.name,sysusers.name, sysobjects.name,sysindexes.rowcnt,sysindexes.indid
ORDER BY ROWS DESC, [SCHEMA NAME],TABLE_NAME
GO

"Technology is a weird thing. It brings you great gifts with one hand, and it stabs you in the back with the other. ... BigGrin

Post #1032213

David Bird

Posted Thursday, December 09, 2010 6:48 AM

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TravisDBA,

I notice some tables where still being skipped after your latest changes. The query excludes tables without a clustered index.

To include them, modify the where clause to use (sysindexes.indid <= 1) .

The Adventureworks database has a few tables that use HEAP instead of a clustered index. This makes it a good database to test the query against.

David Bird

My PC Quick Reference Guide

Post #1032431

TravisDBA

Posted Thursday, December 09, 2010 7:50 AM

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Yes,you can do that or just comment that clause out and you will see more... BigGrin

"Technology is a weird thing. It brings you great gifts with one hand, and it stabs you in the back with the other. ... BigGrin

Post #1032465

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