วิธีตรวจสอบ Size Table บน SQL Server Database ครับ ว่าใช้เนื้อที่เท่าไหร่แล้วครับ

SELECT 
    t.NAME AS TableName,
    p.rows AS RowCounts,
    SUM(a.total_pages) * 8 AS TotalSpaceKB, 
    SUM(a.used_pages) * 8 AS UsedSpaceKB, 
    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
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
WHERE 
    t.NAME NOT LIKE 'dt%' 
    AND t.is_ms_shipped = 0
    AND i.OBJECT_ID > 255 
GROUP BY 
    t.Name, p.Rows
ORDER BY 
    t.Name

select o.name
, reservedpages = sum(a.total_pages)
, usedpages = sum(a.used_pages)
, pages = sum(case when a.type <> 1 then a.used_pages
when p.index_id < 2 then a.data_pages else 0 end)
, (SUM(a.used_pages)*8096)/1024/1024 AS 'Size(MB)'
, rows = sum(case when (p.index_id < 2) and (a.type = 1) then p.rows else 0 end)
from sys.objects o
join sys.partitions p on p.object_id = o.object_id
join sys.allocation_units a on p.partition_id = a.container_id
where o.type = 'U'
group by o.name
order by 3 desc 

sp_spaceused ‘Tablename’