How can you tell what Tables are taking up the most space in a SQL Server 2005 Database?

Gerhard_Weiss_4964 0
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How can you tell what Tables are taking up the most space in a SQL Server 2005 Database?

I am sure there is some System Stored Procedure that shows this information.

I have a TEST database that grew from 1tb to 23tb. We are currently doing a lot of client conversion testing in the database, which entails running the same conversion Stored Procedure multiple times. It does DELETEs which I am sure is increasing the Transaction Log. But this got me thinking to ask this question.

info

the big problem is the dbo.Download table, it creates massive storage that is actually not needed, I had 3GB before truncating it, then 52MB ;)

sql-server-2005 sql-server
4 Answers

Thanks to @marc_s for the answer. I needed to know data vs index space so I went ahead and expanded on the query to include that.

SELECT TableName
    , SUM(DataRowCounts) AS DataRowCounts
    , SUM(DataTotalSpaceGB) AS DataTotalSpaceGB
    , SUM(DataSpaceUsedGB) AS DataSpaceUsedGB
    , SUM(DataUnusedSpaceGB) AS DataUnusedSpaceGB
    , SUM(IndexRowCounts) AS IndexRowCounts
    , SUM(IndexTotalSpaceGB) AS IndexTotalSpaceGB
    , SUM(IndexSpaceUsedGB) AS IndexSpaceUsedGB
    , SUM(IndexUnusedSpaceGB) AS IndexUnusedSpaceGB
    , SUM(DataTotalSpaceGB) + SUM(IndexTotalSpaceGB) AS TotalSpaceGB
FROM
(
SELECT t.NAME AS TableName
    , i.type_desc AS IndexType
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS DataTotalSpaceGB
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2))  ELSE 0 END AS DataSpaceUsedGB    
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS DataUnusedSpaceGB
    , CASE WHEN i.type_desc IN ('CLUSTERED', 'CLUSTERED COLUMNSTORE', 'HEAP') THEN SUM(p.Rows) ELSE 0 END AS DataRowCounts
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS IndexTotalSpaceGB
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2)/1000 AS NUMERIC(36, 2))  ELSE 0 END AS IndexSpaceUsedGB    
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2)/1000 AS NUMERIC(36, 2)) ELSE 0 END AS IndexUnusedSpaceGB  
    , CASE WHEN i.type_desc = 'NONCLUSTERED' THEN SUM(p.Rows) ELSE 0 END AS IndexRowCounts
FROM sys.tables t
INNER JOIN sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN sys.allocation_units a ON p.partition_id = a.container_id
LEFT JOIN sys.schemas s ON t.schema_id = s.schema_id
WHERE t.NAME NOT LIKE 'dt%'
    AND t.is_ms_shipped = 0
    AND i.OBJECT_ID > 255
    AND s.Name = 'dbo' --update this filter
    AND t.Name = 'MyTable'
GROUP BY t.Name
    , i.type_desc
) x
GROUP BY TableName
ORDER BY TotalSpaceGB DESC
user_24607800
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