SQL计算数据库表占用的真实空间大小
最近客户的数据库暴涨,一开始找不到原因,用sql查询表的空间大小,结果之前用的sql语句只能查询除了text,image外的字段大小.搞得一时间混乱不堪.后来咨询了大师们,找到用sp_spaceused这个系统函数可以查询表的真实大小,包含text等字段.sql如下:
declare @id NVARCHAR(100) create table #spt_space ( [name] NVARCHAR(50) null, [rows] int null, [reserved] NVARCHAR(50) null, [data] NVARCHAR(50) null, [index_size] NVARCHAR(50) null, [unused] NVARCHAR(50) null ) set nocount on declare c_tables cursor for select name from sysobjects where xtype = 'U' open c_tables fetch next from c_tables into @id while @@fetch_status = 0 begin /* Code from sp_spaceused */ insert into #spt_space ([name],[rows],reserved,data,index_size,unused) EXEC sp_spaceused @id fetch next from c_tables into @id end SELECT * FROM( SELECT *,CAST(REPLACE(reserved,'KB','') AS INT) AS reservedindex FROM #spt_space ) c order by c.reservedindex desc drop table #spt_space close c_tables deallocate c_tables