April 21, 2011 at 1:27 pm
Does anyone know how to get a tables row count and size on disk in a query?
April 21, 2011 at 1:42 pm
The following article is a great source for that.
http://www.sqlteam.com/forums/topic.asp?TOPIC_ID=61762
Dan
If only I could snap my figures and have all the correct indexes apear and the buffer clean and.... Start day dream here.
April 21, 2011 at 1:44 pm
well for some reason my link is not working but here is the script from Michael Valentine Jones
-- Script to analyze table space usage using the
-- output from the sp_spaceused stored procedure
-- Works with SQL 7.0, 2000, and 2005
set nocount on
print 'Show Size, Space Used, Unused Space, Type, and Name of all database files'
select
[FileSizeMB]=
convert(numeric(10,2),sum(round(a.size/128.,2))),
[UsedSpaceMB]=
convert(numeric(10,2),sum(round(fileproperty( a.name,'SpaceUsed')/128.,2))) ,
[UnusedSpaceMB]=
convert(numeric(10,2),sum(round((a.size-fileproperty( a.name,'SpaceUsed'))/128.,2))) ,
[Type] =
case when a.groupid is null then '' when a.groupid = 0 then 'Log' else 'Data' end,
[DBFileName]= isnull(a.name,'*** Total for all files ***')
from
sysfiles a
group by
groupid,
a.name
with rollup
having
a.groupid is null or
a.name is not null
order by
case when a.groupid is null then 99 when a.groupid = 0 then 0 else 1 end,
a.groupid,
case when a.name is null then 99 else 0 end,
a.name
create table #TABLE_SPACE_WORK
(
TABLE_NAME sysnamenot null ,
TABLE_ROWS numeric(18,0)not null ,
RESERVED varchar(50) not null ,
DATA varchar(50) not null ,
INDEX_SIZE varchar(50) not null ,
UNUSED varchar(50) not null ,
)
create table #TABLE_SPACE_USED
(
Seqintnot null
identity(1,1)primary key clustered,
TABLE_NAME sysnamenot null ,
TABLE_ROWS numeric(18,0)not null ,
RESERVED varchar(50) not null ,
DATA varchar(50) not null ,
INDEX_SIZE varchar(50) not null ,
UNUSED varchar(50) not null ,
)
create table #TABLE_SPACE
(
Seqintnot null
identity(1,1)primary key clustered,
TABLE_NAME SYSNAME not null ,
TABLE_ROWS int not null ,
RESERVED int not null ,
DATA int not null ,
INDEX_SIZE int not null ,
UNUSED int not null ,
USED_MBnumeric(18,4)not null,
USED_GBnumeric(18,4)not null,
AVERAGE_BYTES_PER_ROWnumeric(18,5)null,
AVERAGE_DATA_BYTES_PER_ROWnumeric(18,5)null,
AVERAGE_INDEX_BYTES_PER_ROWnumeric(18,5)null,
AVERAGE_UNUSED_BYTES_PER_ROWnumeric(18,5)null,
)
declare @fetch_status int
declare @proc varchar(200)
select@proc= rtrim(db_name())+'.dbo.sp_spaceused'
declare Cur_Cursor cursor local
for
select
TABLE_NAME=
rtrim(TABLE_SCHEMA)+'.'+rtrim(TABLE_NAME)
from
INFORMATION_SCHEMA.TABLES
where
TABLE_TYPE= 'BASE TABLE'
order by
1
open Cur_Cursor
declare @TABLE_NAME varchar(200)
select @fetch_status = 0
while @fetch_status = 0
begin
fetch next from Cur_Cursor
into
@TABLE_NAME
select @fetch_status = @@fetch_status
if @fetch_status <> 0
begin
continue
end
truncate table #TABLE_SPACE_WORK
insert into #TABLE_SPACE_WORK
(
TABLE_NAME,
TABLE_ROWS,
RESERVED,
DATA,
INDEX_SIZE,
UNUSED
)
exec @proc @objname =
@TABLE_NAME ,@updateusage = 'true'
-- Needed to work with SQL 7
update #TABLE_SPACE_WORK
set
TABLE_NAME = @TABLE_NAME
insert into #TABLE_SPACE_USED
(
TABLE_NAME,
TABLE_ROWS,
RESERVED,
DATA,
INDEX_SIZE,
UNUSED
)
select
TABLE_NAME,
TABLE_ROWS,
RESERVED,
DATA,
INDEX_SIZE,
UNUSED
from
#TABLE_SPACE_WORK
end --While end
close Cur_Cursor
deallocate Cur_Cursor
insert into #TABLE_SPACE
(
TABLE_NAME,
TABLE_ROWS,
RESERVED,
DATA,
INDEX_SIZE,
UNUSED,
USED_MB,
USED_GB,
AVERAGE_BYTES_PER_ROW,
AVERAGE_DATA_BYTES_PER_ROW,
AVERAGE_INDEX_BYTES_PER_ROW,
AVERAGE_UNUSED_BYTES_PER_ROW
)
select
TABLE_NAME,
TABLE_ROWS,
RESERVED,
DATA,
INDEX_SIZE,
UNUSED,
USED_MB=
round(convert(numeric(25,10),RESERVED)/
convert(numeric(25,10),1024),4),
USED_GB=
round(convert(numeric(25,10),RESERVED)/
convert(numeric(25,10),1024*1024),4),
AVERAGE_BYTES_PER_ROW=
case
when TABLE_ROWS <> 0
then round(
(1024.000000*convert(numeric(25,10),RESERVED))/
convert(numeric(25,10),TABLE_ROWS),5)
else null
end,
AVERAGE_DATA_BYTES_PER_ROW=
case
when TABLE_ROWS <> 0
then round(
(1024.000000*convert(numeric(25,10),DATA))/
convert(numeric(25,10),TABLE_ROWS),5)
else null
end,
AVERAGE_INDEX_BYTES_PER_ROW=
case
when TABLE_ROWS <> 0
then round(
(1024.000000*convert(numeric(25,10),INDEX_SIZE))/
convert(numeric(25,10),TABLE_ROWS),5)
else null
end,
AVERAGE_UNUSED_BYTES_PER_ROW=
case
when TABLE_ROWS <> 0
then round(
(1024.000000*convert(numeric(25,10),UNUSED))/
convert(numeric(25,10),TABLE_ROWS),5)
else null
end
from
(
select
TABLE_NAME,
TABLE_ROWS,
RESERVED=
convert(int,rtrim(replace(RESERVED,'KB',''))),
DATA=
convert(int,rtrim(replace(DATA,'KB',''))),
INDEX_SIZE=
convert(int,rtrim(replace(INDEX_SIZE,'KB',''))),
UNUSED=
convert(int,rtrim(replace(UNUSED,'KB','')))
from
#TABLE_SPACE_USED aa
) a
order by
TABLE_NAME
print 'Show results in descending order by size in MB'
select * from #TABLE_SPACE order by USED_MB desc
go
drop table #TABLE_SPACE_WORK
drop table #TABLE_SPACE_USED
drop table #TABLE_SPACE
Dan
If only I could snap my figures and have all the correct indexes apear and the buffer clean and.... Start day dream here.
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