Topic: Database Administration >> how to know size of database
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| Title: how to know size of database |
| Neeraj |
Posted: Feb 14, 2008 05:43:37 AM |
Total Post: 258
Joined: Jan, 2007
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hi,
tell me how cud i know the size of oracle 10g/9i database. |
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 arun |
| Posted: Feb 14, 2008 07:26:06 AM |  |
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Total Post: 28
Joined: Sep, 2007
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select sum(bytes/1024/1024/1024) from dba_data_files
The above query gives u database size in GB.
Pls run the query using system or sys user.
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| dbavinod |
| Posted: Feb 15, 2008 02:03:36 AM | |
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Total Post: 90
Joined: Sep, 2006
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Size of DB is always size of total space used in all datafiles. U can have look through OEM or u need to query datafiles for used space minus Db blocks used but free now.
Vinod
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| Rohit Chouhan |
| Posted: Feb 15, 2008 04:56:48 AM | |
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Total Post: 11
Joined: Aug, 2007
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You can use the following script to find out the free & Occupied size of the tablespaces in database.
set echo off
set heading on
set feedback off
set termout off
set trimspool on
set pagesize 50000
set linesize 80
column TSNAME format A30 heading "TableSpace"
column USED_MB format 999,999,999 heading "MB Used"
column FREE_MB format 999,999,999 heading "MB Free"
column PCT_FREE format 999 heading "%Free"
column EXTENTS format 999,999 heading "#Extents"
column DBNAME noprint new_value DB_NAME
column SDATE noprint new_value SYS_DATE
column FDATE noprint new_value DATESTAMP
select name DBNAME,
to_char(sysdate,'DD-MON-YYYY HH24:MI') SDATE,
to_char(sysdate,'YYYY-MM-DD_HH24_MI') FDATE
from v$database;
break on report
compute sum of USED_MB on report
compute sum of FREE_MB on report
compute sum of EXTENTS on report
spool tsused.&&DB_NAME..&&DATESTAMP..txt
ttitle left SYS_DATE center ' Free and used space(MB) by tablespace for database: ' DB_NAME right 'Page: ' format 99 SQL.PNO skip 2
select TS.TABLESPACE_NAME,
nvl(round(US.USED_MB),0) USED_MB,
nvl(round(FS.FREE_MB),0) FREE_MB,
round(100 * nvl(FS.FREE_MB,0) / (nvl(FS.FREE_MB,1) +
nvl(US.USED_MB,0))) PCT_FREE,
nvl(US.EXTENTS,0) EXTENTS
from (select TABLESPACE_NAME from SYS.DBA_TABLESPACES) TS,
(select TABLESPACE_NAME, sum(bytes)/1024/1024 FREE_MB from
SYS.DBA_FREE_SPACE group by TABLESPACE_NAME) FS,
(select TABLESPACE_NAME, sum(bytes)/1024/1024 USED_MB, count(*)
EXTENTS from SYS.DBA_EXTENTS group by TABLESPACE_NAME) US
where TS.TABLESPACE_NAME = US.TABLESPACE_NAME (+)
and TS.TABLESPACE_NAME = FS.TABLESPACE_NAME (+)
order by TS.TABLESPACE_NAME
/
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| Mohammed Taj |
| Posted: Feb 16, 2008 10:07:08 AM | |
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Total Post: 746
Joined: Jul, 2007
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>>>tell me how cud i know the size of oracle 10g/9i database.
database size depands on database files
and database files is "controlfile,datafiles,redolog files"
sum of all three files called database size.
you can also include "archivelog,parameter,passwordfiles(non database files).
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| Rohit Chouhan |
| Posted: Feb 18, 2008 12:20:12 AM | |
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Total Post: 11
Joined: Aug, 2007
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Redo log files size will be fixed, until unless you modify that.
Control file size will not be increasing rapidly.
for Permanent datafiles above script can be used.
it wont show you size of temporary datafiles.
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