选择SQL Server数据库大小


158

我如何查询我的sql服务器以仅获取数据库的大小?

我用这个

use "MY_DB"
exec sp_spaceused

我懂了 :

database_name   database_size   unallocated space
My_DB           17899.13 MB 5309.39 MB

它返回了我不需要的几列,也许有一个技巧可以从此存储过程中选择database_size列?

我也尝试了这段代码:

SELECT DB_NAME(database_id) AS DatabaseName,
       Name AS Logical_Name,
       Physical_Name,
       (size * 8) / 1024 SizeMB
FROM sys.master_files
WHERE DB_NAME(database_id) = 'MY_DB'

它给了我这个结果:

DatabaseName    Logical_Name    Physical_Name                    SizeMB
MY_DB           MY_DB           D:\MSSQL\Data\MY_DB.mdf          10613
MY_DB           MY_DB_log       D:\MSSQL\Data\MY_DB.ldf          7286

所以我这样写:

SELECT SUM(SizeMB)
FROM (
    SELECT DB_NAME(database_id) AS DatabaseName,
           Name AS Logical_Name,
           Physical_Name,
           (size * 8) / 1024 SizeMB
    FROM sys.master_files
    WHERE DB_NAME(database_id) = 'MY_DB'
) AS TEMP

我得到:1183

这样就行了,但也许有一种适当的方法可以做到这一点?


2
使用'SELECT SUM((size * 8)/ 1024)SizeMB FROM sys.master_files WHERE DB_NAME(database_id)='YOUR_DB'将得到相同的结果
病单元(13.08.02)

@LittlBobbyTables如何在列中添加MB?我要在值后加上“ MB”
Adeel ASIF

Answers:


228

试试这个-

查询:

SELECT 
      database_name = DB_NAME(database_id)
    , log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
    , row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
    , total_size_mb = CAST(SUM(size) * 8. / 1024 AS DECIMAL(8,2))
FROM sys.master_files WITH(NOWAIT)
WHERE database_id = DB_ID() -- for current db 
GROUP BY database_id

输出:

-- my query
name           log_size_mb  row_size_mb   total_size_mb
-------------- ------------ ------------- -------------
xxxxxxxxxxx    512.00       302.81        814.81

-- sp_spaceused
database_name    database_size      unallocated space
---------------- ------------------ ------------------
xxxxxxxxxxx      814.81 MB          13.04 MB

功能:

ALTER FUNCTION [dbo].[GetDBSize] 
(
    @db_name NVARCHAR(100)
)
RETURNS TABLE
AS
RETURN

  SELECT 
        database_name = DB_NAME(database_id)
      , log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
      , row_size_mb = CAST(SUM(CASE WHEN type_desc = 'ROWS' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
      , total_size_mb = CAST(SUM(size) * 8. / 1024 AS DECIMAL(8,2))
  FROM sys.master_files WITH(NOWAIT)
  WHERE database_id = DB_ID(@db_name)
      OR @db_name IS NULL
  GROUP BY database_id

更新2016/01/22:

显示有关大小,可用空间,上次数据库备份的信息

IF OBJECT_ID('tempdb.dbo.#space') IS NOT NULL
    DROP TABLE #space

CREATE TABLE #space (
      database_id INT PRIMARY KEY
    , data_used_size DECIMAL(18,2)
    , log_used_size DECIMAL(18,2)
)

DECLARE @SQL NVARCHAR(MAX)

SELECT @SQL = STUFF((
    SELECT '
    USE [' + d.name + ']
    INSERT INTO #space (database_id, data_used_size, log_used_size)
    SELECT
          DB_ID()
        , SUM(CASE WHEN [type] = 0 THEN space_used END)
        , SUM(CASE WHEN [type] = 1 THEN space_used END)
    FROM (
        SELECT s.[type], space_used = SUM(FILEPROPERTY(s.name, ''SpaceUsed'') * 8. / 1024)
        FROM sys.database_files s
        GROUP BY s.[type]
    ) t;'
    FROM sys.databases d
    WHERE d.[state] = 0
    FOR XML PATH(''), TYPE).value('.', 'NVARCHAR(MAX)'), 1, 2, '')

EXEC sys.sp_executesql @SQL

SELECT
      d.database_id
    , d.name
    , d.state_desc
    , d.recovery_model_desc
    , t.total_size
    , t.data_size
    , s.data_used_size
    , t.log_size
    , s.log_used_size
    , bu.full_last_date
    , bu.full_size
    , bu.log_last_date
    , bu.log_size
FROM (
    SELECT
          database_id
        , log_size = CAST(SUM(CASE WHEN [type] = 1 THEN size END) * 8. / 1024 AS DECIMAL(18,2))
        , data_size = CAST(SUM(CASE WHEN [type] = 0 THEN size END) * 8. / 1024 AS DECIMAL(18,2))
        , total_size = CAST(SUM(size) * 8. / 1024 AS DECIMAL(18,2))
    FROM sys.master_files
    GROUP BY database_id
) t
JOIN sys.databases d ON d.database_id = t.database_id
LEFT JOIN #space s ON d.database_id = s.database_id
LEFT JOIN (
    SELECT
          database_name
        , full_last_date = MAX(CASE WHEN [type] = 'D' THEN backup_finish_date END)
        , full_size = MAX(CASE WHEN [type] = 'D' THEN backup_size END)
        , log_last_date = MAX(CASE WHEN [type] = 'L' THEN backup_finish_date END)
        , log_size = MAX(CASE WHEN [type] = 'L' THEN backup_size END)
    FROM (
        SELECT
              s.database_name
            , s.[type]
            , s.backup_finish_date
            , backup_size =
                        CAST(CASE WHEN s.backup_size = s.compressed_backup_size
                                    THEN s.backup_size
                                    ELSE s.compressed_backup_size
                        END / 1048576.0 AS DECIMAL(18,2))
            , RowNum = ROW_NUMBER() OVER (PARTITION BY s.database_name, s.[type] ORDER BY s.backup_finish_date DESC)
        FROM msdb.dbo.backupset s
        WHERE s.[type] IN ('D', 'L')
    ) f
    WHERE f.RowNum = 1
    GROUP BY f.database_name
) bu ON d.name = bu.database_name
ORDER BY t.total_size DESC

输出:

database_id name                             state_desc   recovery_model_desc total_size   data_size   data_used_size  log_size    log_used_size  full_last_date          full_size    log_last_date           log_size
----------- -------------------------------- ------------ ------------------- ------------ ----------- --------------- ----------- -------------- ----------------------- ------------ ----------------------- ---------
24          StackOverflow                    ONLINE       SIMPLE              66339.88     65840.00    65102.06        499.88      5.05           NULL                    NULL         NULL                    NULL
11          AdventureWorks2012               ONLINE       SIMPLE              16404.13     15213.00    192.69          1191.13     15.55          2015-11-10 10:51:02.000 44.59        NULL                    NULL
10          locateme                         ONLINE       SIMPLE              1050.13      591.00      2.94            459.13      6.91           2015-11-06 15:08:34.000 17.25        NULL                    NULL
8           CL_Documents                     ONLINE       FULL                793.13       334.00      333.69          459.13      12.95          2015-11-06 15:08:31.000 309.22       2015-11-06 13:15:39.000 0.01
1           master                           ONLINE       SIMPLE              554.00       492.06      4.31            61.94       5.20           2015-11-06 15:08:12.000 0.65         NULL                    NULL
9           Refactoring                      ONLINE       SIMPLE              494.32       366.44      308.88          127.88      34.96          2016-01-05 18:59:10.000 37.53        NULL                    NULL
3           model                            ONLINE       SIMPLE              349.06       4.06        2.56            345.00      0.97           2015-11-06 15:08:12.000 0.45         NULL                    NULL
13          sql-format.com                   ONLINE       SIMPLE              216.81       181.38      149.00          35.44       3.06           2015-11-06 15:08:39.000 23.64        NULL                    NULL
23          users                            ONLINE       FULL                173.25       73.25       3.25            100.00      5.66           2015-11-23 13:15:45.000 0.72         NULL                    NULL
4           msdb                             ONLINE       SIMPLE              46.44        20.25       19.31           26.19       4.09           2015-11-06 15:08:12.000 2.96         NULL                    NULL
21          SSISDB                           ONLINE       FULL                45.06        40.00       4.06            5.06        4.84           2014-05-14 18:27:11.000 3.08         NULL                    NULL
27          tSQLt                            ONLINE       SIMPLE              9.00         5.00        3.06            4.00        0.75           NULL                    NULL         NULL                    NULL
2           tempdb                           ONLINE       SIMPLE              8.50         8.00        4.50            0.50        1.78           NULL                    NULL         NULL                    NULL

6
执行查询的用户必须至少具有sysadmin SQL Server角色,否则返回NULL。
乌威·基姆

2
我有一些VLDB导致DECIMAL(8,2)出现“将数字转换为数据类型数字的算术溢出错误”。解决方法是将DECIMAL(8,2)更改为DECIMAL(12,2)。
colbybhearn

1
不错的一种,在列名称中也有单位也很有用。
罗德


56

对我来说非常适合在SQL Server 2012中计算SQL数据库大小

exec sp_spaceused

在此处输入图片说明


3
这也适用于Azure SQL V12(也许V10有效,但未经测试)。这应该是与较新版本的MS SQL Server一起使用的首选方法。+1
Guilherme

好!我也没有在Azure Vx上进行测试,希望它可以在Azure上运行。
Anjan Kant

4
SELECT      sys.databases.name AS [Database Name],  
        CONVERT(VARCHAR,SUM(size)*8/1024)+' MB' AS [Size]  
     FROM        sys.databases   
     JOIN        sys.master_files  
     ON          sys.databases.database_id=sys.master_files.database_id  
     GROUP BY    sys.databases.name  
     ORDER BY    sys.databases.name  

3

EXEC sp_spaceused @oneresultset = 1 在第一行显示所有结果

如果仅执行“ EXEC sp_spaceused”,则将在SQL Server Management Studio v17.9中看到两行“工作”


2
请在您的代码中添加一些解释,以便其他人可以从中学习
Nico Haase

3

您可以通过此链接检查此查询的工作方式。

    IF OBJECT_ID('tempdb..#spacetable') IS NOT NULL 
    DROP TABLE tempdb..#spacetable 
    create table #spacetable
    (
    database_name varchar(50) ,
    total_size_data int,
    space_util_data int,
    space_data_left int,
    percent_fill_data float,
    total_size_data_log int,
    space_util_log int,
    space_log_left int,
    percent_fill_log char(50),
    [total db size] int,
    [total size used] int,
    [total size left] int
    )
    insert into  #spacetable
    EXECUTE master.sys.sp_MSforeachdb 'USE [?];
    select x.[DATABASE NAME],x.[total size data],x.[space util],x.[total size data]-x.[space util] [space left data],
    x.[percent fill],y.[total size log],y.[space util],
    y.[total size log]-y.[space util] [space left log],y.[percent fill],
    y.[total size log]+x.[total size data] ''total db size''
    ,x.[space util]+y.[space util] ''total size used'',
    (y.[total size log]+x.[total size data])-(y.[space util]+x.[space util]) ''total size left''
     from (select DB_NAME() ''DATABASE NAME'',
    sum(size*8/1024) ''total size data'',sum(FILEPROPERTY(name,''SpaceUsed'')*8/1024) ''space util''
    ,case when sum(size*8/1024)=0 then ''divide by zero'' else
    substring(cast((sum(FILEPROPERTY(name,''SpaceUsed''))*1.0*100/sum(size)) as CHAR(50)),1,6) end ''percent fill''
    from sys.master_files where database_id=DB_ID(DB_NAME())  and  type=0
    group by type_desc  ) as x ,
    (select 
    sum(size*8/1024) ''total size log'',sum(FILEPROPERTY(name,''SpaceUsed'')*8/1024) ''space util''
    ,case when sum(size*8/1024)=0 then ''divide by zero'' else
    substring(cast((sum(FILEPROPERTY(name,''SpaceUsed''))*1.0*100/sum(size)) as CHAR(50)),1,6) end ''percent fill''
    from sys.master_files where database_id=DB_ID(DB_NAME())  and  type=1
    group by type_desc  )y'
    select * from #spacetable 
    order by database_name
    drop table #spacetable

0
SELECT
    DB_NAME (database_id) as [Database Name],
    name as [Database File Name],
    [Type] = CASE WHEN Type_Desc = 'ROWS' THEN 'Data File(s)'
            WHEN Type_Desc = 'LOG'  THEN 'Log File(s)'
            ELSE Type_Desc END,
    size*8/1024 as 'Size (MB)',
    physical_name as [Database_File_Location]
FROM sys.master_files
ORDER BY 1,3

输出量

Database Name               Database File Name              Type                Size (MB)   Database_File_Location
--------------------------- ------------------------------- ------------------- ----------- ---------------------------------------------------------------
AdventureWorksDW2017        AdventureWorksDW2017            Data File(s)        136         E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\AdventureWorksDW2017.mdf
AdventureWorksDW2017        AdventureWorksDW2017_log        Log File(s)         72          E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\AdventureWorksDW2017_log.ldf
DBA_Admin                   DBA_Admin                       Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\DBA_Admin.mdf
DBA_Admin                   DBA_Admin_log                   Log File(s)         8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\DBA_Admin_log.ldf
EventNotifications          EventNotifications              Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\EventNotifications.mdf
EventNotifications          EventNotifications_log          Log File(s)         8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\EventNotifications_log.ldf
master                      master                          Data File(s)        4           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\master.mdf
master                      mastlog                         Log File(s)         2           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\mastlog.ldf
model                       modeldev                        Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\model.mdf
model                       modellog                        Log File(s)         8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\modellog.ldf
msdb                        MSDBData                        Data File(s)        19          E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\MSDBData.mdf
msdb                        MSDBLog                         Log File(s)         13          E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\MSDBLog.ldf
tempdb                      temp2                           Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb_mssql_2.ndf
tempdb                      temp3                           Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb_mssql_3.ndf
tempdb                      temp4                           Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb_mssql_4.ndf
tempdb                      tempdev                         Data File(s)        8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\tempdb.mdf
tempdb                      templog                         Log File(s)         8           E:\MSSQL14.MSSQLSERVER\MSSQL\DATA\templog.ldf

0

检查SQL Server中Azure和本地-的数据库大小

方法1 –使用“ sys.database_files”系统视图

SELECT
    DB_NAME() AS [database_name],
    CONCAT(CAST(SUM(
        CAST( (size * 8.0/1024) AS DECIMAL(15,2) )
    ) AS VARCHAR(20)),' MB') AS [database_size]
FROM sys.database_files;

在此处输入图片说明

方法2 –使用“ sp_spaceused”系统存储过程

EXEC sp_spaceused ;

在此处输入图片说明


0

这里已经有很多不错的答案,但是值得一提的是使用标准报告通过SQL Server Management Studio(SSMS)获取SQL Server数据库大小的简单快捷方法。

要运行报告,您需要:

  1. 右键单击数据库
  2. 转到报告>标准报告>磁盘使用率。

它打印出一个不错的报告:

在此处输入图片说明

其中“ 保留总空间”是磁盘上数据库的总大小,其中包括所有数据文件的大小和所有事务日志文件的大小。

幕后,SSMS使用dbo.sysfiles视图或sys.database_files视图(取决于MSSQL的版本)和某种此类查询来获取“保留的总空间”值:

SELECT sum((convert(dec (19, 2),  
convert(bigint,SIZE))) * 8192 / 1048576.0) db_size_mb
FROM dbo.sysfiles;
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