пятница, 2 октября 2020 г.

Get size of all tables in current database SQL

 I have a task - to perform data upgrade from AX2012 to D365FO and I was wondering how big is each of the customer's table. I'm aware of Object explorer details(F7) in SQL Management studio but it works not fast as I'd like to. So I googled and found a bunch of different scripts that shows different information regarding your database.

One of that scripts I used and the result was pretty good. So I recommend you to use that script if you'd have the same task. The code is below:

SELECT a2.name AS TableName, a1.rows as [RowCount], --(a1.reserved + ISNULL(a4.reserved,0)) * 8 AS ReservedSize_KB, --a1.data * 8 AS DataSize_KB, --(CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 AS IndexSize_KB, --(CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 AS UnusedSize_KB, CAST(ROUND(((a1.reserved + ISNULL(a4.reserved,0)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS ReservedSize_MB, CAST(ROUND(a1.data * 8 / 1024.00, 2) AS NUMERIC(36, 2)) AS DataSize_MB, CAST(ROUND((CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 / 1024.00, 2) AS NUMERIC(36, 2)) AS IndexSize_MB, CAST(ROUND((CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSize_MB, --'| |' Separator_MB_GB, CAST(ROUND(((a1.reserved + ISNULL(a4.reserved,0)) * 8) / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS ReservedSize_GB, CAST(ROUND(a1.data * 8 / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS DataSize_GB, CAST(ROUND((CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS IndexSize_GB, CAST(ROUND((CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 / 1024.00 / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSize_GB FROM (SELECT ps.object_id, SUM (CASE WHEN (ps.index_id < 2) THEN row_count ELSE 0 END) AS [rows], SUM (ps.reserved_page_count) AS reserved, SUM (CASE WHEN (ps.index_id < 2) THEN (ps.in_row_data_page_count + ps.lob_used_page_count + ps.row_overflow_used_page_count) ELSE (ps.lob_used_page_count + ps.row_overflow_used_page_count) END ) AS data, SUM (ps.used_page_count) AS used FROM sys.dm_db_partition_stats ps --===Remove the following comment for SQL Server 2014+ --WHERE ps.object_id NOT IN (SELECT object_id FROM sys.tables WHERE is_memory_optimized = 1) GROUP BY ps.object_id) AS a1 LEFT OUTER JOIN (SELECT it.parent_id, SUM(ps.reserved_page_count) AS reserved, SUM(ps.used_page_count) AS used FROM sys.dm_db_partition_stats ps INNER JOIN sys.internal_tables it ON (it.object_id = ps.object_id) WHERE it.internal_type IN (202,204) GROUP BY it.parent_id) AS a4 ON (a4.parent_id = a1.object_id) INNER JOIN sys.all_objects a2 ON ( a1.object_id = a2.object_id ) INNER JOIN sys.schemas a3 ON (a2.schema_id = a3.schema_id) WHERE a2.type <> N'S' and a2.type <> N'IT' --AND a2.name = 'MyTable' --Filter for specific table --ORDER BY a3.name, a2.name ORDER BY ReservedSize_MB DESC

Just do the Copy-> Paste into your management studio and run in in front of the desirable database.