[转]sqlserver查询系统表统计表行数和占用空间
https://blog.csdn.net/yuxuac/article/details/79204910
1.查询表行数
SELECT object_name (i.id) TableName, rows as RowCnt FROM sysindexes i INNER JOIN sysObjects o ON (o.id = i.id AND o.xType = 'U ') WHERE indid < 2 and object_name (i.id)='IOData' --去掉此条件查询当前数据库的所有表信息
更快的方法如下:
select sum (spart.rows) as Count
from sys.partitions spart
where spart.object_id = object_id('tableName')
and spart.index_id < 2
https://itknowledgeexchange.techtarget.com/sql-server/why-is-my-select-count-running-so-slow/
2.查询占用空间等信息
SELECT 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) / 1024.00), 2) AS NUMERIC(36, 2)) AS TotalSpaceMB, SUM(a.used_pages) * 8 AS UsedSpaceKB, CAST(ROUND(((SUM(a.used_pages) * 8) / 1024.00), 2) AS NUMERIC(36, 2)) AS UsedSpaceMB, (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB, 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 WHERE t.NAME NOT LIKE 'dt%' AND t.is_ms_shipped = 0 AND i.OBJECT_ID > 255 AND t.Name='IOData' --去掉此条件 查询当前数据库的所有表信息 GROUP BY t.Name, s.Name, p.Rows ORDER BY t.Name
作者:xuejianxiyang
出处:http://xuejianxiyang.cnblogs.com
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