Script To Find Space Used By All Tables In Sql Server

A couple of times I face issues require the size of all tables in my database. This script is shared by team members to get a quick result.

Below script will return the list of all tables with there size in GB and MB (total, used, unused)

Output Will be as below.

Quick Download 

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SELECT
    t.NAME AS TableName,
    s.Name AS SchemaName,
    p.rows AS RowCounts,
    (SUM(a.total_pages) * 8)/(1024) AS TotalSpaceMB, 
(SUM(a.total_pages) * 8)/(1024*1024) AS TotalSpaceGB, 
    (SUM(a.used_pages) * 8)/(1024) AS UsedSpaceMB, 
(SUM(a.used_pages) * 8)/(1024*1024) AS UsedSpaceGB,
   ((SUM(a.total_pages) - SUM(a.used_pages)) * 8) /(1024) AS UnusedSpaceMB,
((SUM(a.total_pages) - SUM(a.used_pages)) * 8) /(1024*1024) AS UnusedSpaceGB
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 OUTER 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 
GROUP BY 
    t.Name, s.Name, p.Rows
ORDER BY 
    TotalSpaceMB desc

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