合 MSSQL查询前几张大表(查询表大小)
Tags: MSSQLSQL Server脚本大表top N查询
查询当前库的前10张大表
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | SELECT TOP 10 t.NAME AS TableName, s.Name AS SchemaName, p.rows AS RowCounts, CAST(ROUND(((SUM(a.total_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB, CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB, 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 GROUP BY t.Name, s.Name, p.Rows ORDER BY SUM(a.total_pages) desc; |