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SELECT
TableName = obj.name,
TotalRows = prt.rows,Identity_Current=IDENT_CURRENT(obj.name),
[SpaceUsed(KB)] = SUM(alloc.used_pages)*8
FROM sys.objects obj
JOIN sys.indexes idx on obj.object_id = idx.object_id
JOIN sys.partitions prt on obj.object_id = prt.object_id
JOIN sys.allocation_units alloc on alloc.container_id = prt.partition_id
WHERE
obj.type = 'U' AND idx.index_id IN (0, 1)
GROUP BY obj.name, prt.rows
ORDER BY TableName