020. SQL SERVER script to Find the largest Objects along with Indexes size

SELECT 
    t.NAME AS TableName
    ,i.name as indexName
    ,sum(p.rows) as RowCounts
    ,sum(a.total_pages) as TotalPages
    ,sum(a.used_pages) as UsedPages
    ,sum(a.data_pages) as DataPages
    ,(sum(a.total_pages) * 8) / 1024 as TotalSpaceMB
    ,(sum(a.used_pages) * 8) / 1024 as UsedSpaceMB 
    ,(sum(a.data_pages) * 8) / 1024 as DataSpaceMB
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 i.OBJECT_ID > 255 
	AND i.index_id <= 1
GROUP BY 
    t.NAME, i.object_id, i.index_id, i.name 
ORDER BY SUM(a.total_pages) DESC