Get All Table Status with Data Available Summary in SQL SERVER

 SELECT 

    t.name AS TableName,

    s.name AS SchemaName,

    p.rows,

    SUM(a.total_pages) * 8 AS TotalSpaceKB, 

    CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB,

    SUM(a.used_pages) * 8 AS UsedSpaceKB, 

    CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB, 

    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB,

    CAST(ROUND(((SUM(a.total_pages) - SUM(a.used_pages)) * 8) / 1024.00, 2) AS NUMERIC(36, 2)) AS UnusedSpaceMB

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, t.name desc