SQL Server查看庫、表占用空間大小

查詢數據文件與日志文件占用情況，查看數據大小，查看庫大小

1. 查看數據文件占用（權限要求較大）

DBCC showfilestats

2. 查看日志文件占用

 

dbcc sqlperf(logspace) 

USE master
go--簡易版
SELECT 
Name,
physical_name,
Size/128.0 AS [Size(MB)],
FILEPROPERTY(Name,'SpaceUsed')/128.0 AS [SpaceUsed(MB)],
STR(FILEPROPERTY(Name,'SpaceUsed')*1.0/Size*100,6,3) AS [SpaceUsed(%)] 
FROM master.sys.database_files

 

--詳細版
SELECT a.name [文件名稱] ,cast(a.[size]*1.0/128 as decimal(12,1)) AS [文件設置大小(MB)] ,
    CAST( fileproperty(s.name,'SpaceUsed')/(8*16.0) AS DECIMAL(12,1)) AS [文件所占空間(MB)] ,
    CAST( (fileproperty(s.name,'SpaceUsed')/(8*16.0))/(s.size/(8*16.0))*100.0 AS DECIMAL(12,1)) AS [所占空間率%] ,
    CASE WHEN A.growth =0 THEN '文件大小固定，不會增長' ELSE '文件將自動增長' end [增長模式] ,CASE WHEN A.growth > 0 AND is_percent_growth = 0 
    THEN '增量為固定大小' WHEN A.growth > 0 AND is_percent_growth = 1 THEN '增量將用整數百分比表示' ELSE '文件大小固定，不會增長' END AS [增量模式] ,
    CASE WHEN A.growth > 0 AND is_percent_growth = 0 THEN cast(cast(a.growth*1.0/128as decimal(12,0)) AS VARCHAR)+'MB' 
    WHEN A.growth > 0 AND is_percent_growth = 1 THEN cast(cast(a.growth AS decimal(12,0)) AS VARCHAR)+'%' ELSE '文件大小固定，不會增長' end AS [增長值(%或MB)] ,
    a.physical_name AS [文件所在目錄] ,a.type_desc AS [文件類型] 
FROM sys.database_files a 
INNER JOIN sys.sysfiles AS s  ON a.[file_id]=s.fileid 
LEFT JOIN sys.dm_db_file_space_usage b ON a.[file_id]=b.[file_id] ORDER BY a.[type]

sql server查看所有表大小、所占空間

基於T-SQL

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 總共占用空間,
    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 > 0
GROUP BY 
    t.Name, s.Name, p.Rows
ORDER BY 
    總共占用空間 desc

基於存儲過程（exec sp_spaceused）

--主要原理： 
exec sp_spaceused '表名' --取得表占用空間
exec sp_spaceused ''--數據庫空間 

create table #Data(name varchar(100),row varchar(100),reserved varchar(100),data varchar(100),index_size varchar(100),unused varchar(100)) 
 
declare @name varchar(100) 
declare cur cursor  for 
    select name from sysobjects where xtype='u' order by name 
open cur 
fetch next from cur into @name 
while @@fetch_status=0 
begin 
    insert into #data 
    exec sp_spaceused   @name 
    print @name 
 
    fetch next from cur into @name 
end 
close cur 
deallocate cur 
 
create table #DataNew(name varchar(100),row int,reserved int,data int,index_size int,unused int) 
 
insert into #dataNew 
select name,convert(int,row) as row,convert(int,replace(reserved,'KB','')) as reserved,convert(int,replace(data,'KB','')) as data, 
convert(int,replace(index_size,'KB','')) as index_size,convert(int,replace(unused,'KB','')) as unused from #data  
 
select * from #dataNew order by data desc   

查看索引大小

--查看索引大小
如果您想要表的每個索引的大小，請使用以下兩個查詢中的一個：

SELECT
    i.name                  AS IndexName,
    SUM(s.used_page_count) * 8   AS IndexSizeKB
FROM sys.dm_db_partition_stats  AS s 
JOIN sys.indexes                AS i
ON s.[object_id] = i.[object_id] AND s.index_id = i.index_id
WHERE s.[object_id] = object_id('dbo.TableName')
GROUP BY i.name
ORDER BY i.name


---第2種方法
SELECT
    i.name              AS IndexName,
    SUM(page_count * 8) AS IndexSizeKB
FROM sys.dm_db_index_physical_stats(
    db_id(), object_id('dbo.TableName'), NULL, NULL, 'DETAILED') AS s
JOIN sys.indexes AS i
ON s.[object_id] = i.[object_id] AND s.index_id = i.index_id
GROUP BY i.name
ORDER BY i.name
結果通常略有不同，但在1%之內。

 查看堆表及數據量超過10W行的

select * from (
SELECT tables.NAME, 
       (SELECT rows 
        FROM   sys.partitions 
        WHERE  object_id = tables.object_id 
               AND index_id = 0 -- 0 is for heap 
               -- 1 is for clustered index 
                And rows >=100000
       )AS numberofrows 
FROM   db_tank.sys.tables tables 
WHERE  Objectproperty(tables.object_id, N'TableHasClustIndex') = 0
)t where numberofrows is not null

查看表數據行數

但這種辦法不是實時的，是sql server定時做的統計操作，執行下面代碼可進一步精確

DBCC UpdateUSAGE(DatabaseName,[TABLENAME])WITH ROW_COUNTS 

SELECT   a.name, b.rows
FROM      sysobjects AS a INNER JOIN
                 sysindexes AS b ON a.id = b.id
WHERE   (a.type = 'u') AND (b.indid IN (0, 1))
ORDER BY b.rows DESC