Question

我需要为数据库中的所有表执行存储过程sp_spaceused。我已经使用了光标，请找到以下查询。事情是我需要在单个结果集中生成报告。对于以下查询，我得到了不同的结果。

Declare @Name Varchar(500)
Declare @GetName Cursor
Set     @Getname = Cursor for
select name from sys.tables
Open @Getname
Fetch Next From @Getname into @Name
While @@Fetch_Status=0
Begin
exec sp_spaceused @Name
Fetch Next From @Getname into @Name
End
Close @GetName
Deallocate @GetName

Answer 1

您可以使用类似下面的内容（数据类型可能需要调整）。

编辑：请参阅Joe的答案，了解正确使用的数据类型！

create table #t
(
name sysname,
rows bigint,
reserved varchar(50),
data varchar(50),
index_size varchar(50),
unused varchar(50)
)

EXEC  sp_MSForEachtable 'insert into #t EXEC sp_spaceused ''?'''

select name,rows,reserved,data,index_size,unused 
from #t

Answer 2

create table #Temp (
    name nvarchar(128),
    [rows] char(11),
    reserved varchar(18),
    data varchar(18),
    index_size varchar(18),
    unused varchar(18)
)

insert into #Temp
    exec sp_msforeachtable 'sp_spaceused [?]'

select * from #Temp

Answer 3

对此问题更快，基于集合的解决方案是加入sys.dm_db_partition_stats和sys.internal_tables，就像sp_spaceused一样。下面的代码是在Management Studio中生成“按表的磁盘使用情况”报告时运行的代码。

在我的数据库中，基于集合的解决方案在60毫秒内返回，而光标运行了22秒。

begin try 
SELECT
    (row_number() over(order by a3.name, a2.name))%2 as l1,
    a3.name AS [schemaname],
    a2.name AS [tablename],
    a1.rows as row_count,
    (a1.reserved + ISNULL(a4.reserved,0))* 8 AS reserved, 
    a1.data * 8 AS data,
    (CASE WHEN (a1.used + ISNULL(a4.used,0)) > a1.data THEN (a1.used + ISNULL(a4.used,0)) - a1.data ELSE 0 END) * 8 AS index_size,
    (CASE WHEN (a1.reserved + ISNULL(a4.reserved,0)) > a1.used THEN (a1.reserved + ISNULL(a4.reserved,0)) - a1.used ELSE 0 END) * 8 AS unused
FROM
    (SELECT 
        ps.object_id,
        SUM (
            CASE
                WHEN (ps.index_id < 2) THEN row_count
                ELSE 0
            END
            ) AS [rows],
        SUM (ps.reserved_page_count) AS reserved,
        SUM (
            CASE
                WHEN (ps.index_id < 2) THEN (ps.in_row_data_page_count + ps.lob_used_page_count + ps.row_overflow_used_page_count)
                ELSE (ps.lob_used_page_count + ps.row_overflow_used_page_count)
            END
            ) AS data,
        SUM (ps.used_page_count) AS used
    FROM sys.dm_db_partition_stats ps
    GROUP BY ps.object_id) AS a1
LEFT OUTER JOIN 
    (SELECT 
        it.parent_id,
        SUM(ps.reserved_page_count) AS reserved,
        SUM(ps.used_page_count) AS used
     FROM sys.dm_db_partition_stats ps
     INNER JOIN sys.internal_tables it ON (it.object_id = ps.object_id)
     WHERE it.internal_type IN (202,204)
     GROUP BY it.parent_id) AS a4 ON (a4.parent_id = a1.object_id)
INNER JOIN sys.all_objects a2  ON ( a1.object_id = a2.object_id ) 
INNER JOIN sys.schemas a3 ON (a2.schema_id = a3.schema_id)
WHERE a2.type <> N'S' and a2.type <> N'IT'
ORDER BY a3.name, a2.name
end try 
begin catch 
select 
    -100 as l1
,   1 as schemaname 
,       ERROR_NUMBER() as tablename
,       ERROR_SEVERITY() as row_count
,       ERROR_STATE() as reserved
,       ERROR_MESSAGE() as data
,       1 as index_size
,       1 as unused 
end catch

Answer 4

试试这个：

创建一个镜像sproc结果集的表（临时或其他）。然后，在光标的主体中，运行此

INSERT INTO <tablename> EXEC sp_spaceused

关闭/取消分配光标后，从表格中选择。

在游标中执行存储过程

4 个答案: