# How much space are all my sql tables using?

> I deal with a few dozen databases on a daily basis. Often times I wonder "What the heck is making this database 100GB?" Sure, you can click around in Management Studio and find…

URL: https://jdconley.com/blog/how-much-space-are-all-my-sql-tables
Published: 2007-11-27T17:35:00.000-08:00
Updated: 2011-07-22T02:49:45.455-07:00

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I deal with a few dozen databases on a daily basis. Often times I wonder "What the heck is making this database 100GB?" Sure, you can click around in Management Studio and find figures on a table by table and index by index basis, but there has to be a better way!

So, I asked a colleague of mine – who happens to be the guy that did all the database work on the SoapBox products and the best database dude I know. He didn't have a good answer for me so he whipped up this tiny script \[Edit: After reading my blog he told me he actually adapted the script from one he found on the net that didn't quite work\] in a few minutes. It makes my head spin. It's not perfect, but it's darn close.

```
WITH table_space_usage( schema_name, table_name, index_name, used, reserved, ind_rows, tbl_rows )AS (SELECT s.Name    , o.Name    , coalesce(i.Name, 'HEAP')    , p.used_page_count * 8    , p.reserved_page_count * 8    , p.row_count    , case when i.index_id in ( 0, 1 ) then p.row_count else 0 end FROM sys.dm_db_partition_stats p INNER JOIN sys.objects as o   ON o.object_id = p.object_id INNER JOIN sys.schemas as s   ON s.schema_id = o.schema_id LEFT OUTER JOIN sys.indexes as i   on i.object_id = p.object_id and i.index_id = p.index_idWHERE o.type_desc = 'USER_TABLE'  and o.is_ms_shipped = 0)SELECT t.schema_name    , t.table_name    , t.index_name    , sum(t.used) as used_in_kb    , sum(t.reserved) as reserved_in_kb    , case grouping(t.index_name)when 0 then sum(t.ind_rows)else sum(t.tbl_rows) end as rowsFROM table_space_usage as tGROUP BY      t.schema_name    , t.table_name    , t.index_nameWITH ROLLUPORDER BY     grouping(t.schema_name)   , t.schema_name   , grouping(t.table_name)   , t.table_name   , grouping(t.index_name)   , t.index_name
```

I hope that hurts your head as much as it does mine. Just goes to show that I'm no SQL guru, I guess. But hey, if you ever want to know where that space is going in your database, this script will tell you!