Найти самые большие таблицы данных в базе

SQL

USE Viatec_UT_mamch;
SELECT TOP 20
t.NAME AS TableName,
s.Name AS SchemaName,
p.rows AS RowCounts,
SUM(a.total_pages) * 8 AS TotalSpaceKB,
CAST(ROUND(SUM(a.total_pages) * 8 / 1024.0, 2) AS NUMERIC(36,2)) AS TotalSpaceMB,
SUM(a.used_pages) * 8 AS UsedSpaceKB,
CAST(ROUND(SUM(a.used_pages) * 8 / 1024.0, 2) AS NUMERIC(36,2)) AS UsedSpaceMB,
SUM(a.data_pages) * 8 AS DataSpaceKB,
CAST(ROUND(SUM(a.data_pages) * 8 / 1024.0, 2) AS NUMERIC(36,2)) 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
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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