I have been conversing with Liron Amitzi on twitter about his tablespace free SQL script.
He accommodate my request to add fragmentation details so I can verify against what I have.
Looks like I did it right.
You can find Liron script at this blog – Tablespaces Free Space and Stuff
oracle@arrow:tiger:/media/sf_working/sql
$ sysdba @ts_free_space.sql
SQL*Plus: Release 11.2.0.4.0 Production on Thu Mar 24 12:35:23 2016
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
TABLESPACE_NAME CURR_SIZE MAX_SIZE FREE_SIZE USED_SIZE PCT_FREE PCT_FREE_TOTAL FREE_CHUNKS LARGEST_CHUNK
------------------------------ ------------ ------------ ------------ ------------ ------------ -------------- ------------ -------------
USERS 1024 1024 1021.38 2.62 99.74 99.74 2 1021.13
UNDOTBS1 80 32767 64.75 15.25 80.94 99.95 12 37
SYSAUX 400 32767 218.94 181.06 54.73 99.45 1 218.94
SYSTEM 500 32767 231.19 268.81 46.24 99.18 3 231
ARROW:(SYS@tiger):PRIMARY> @free.sql
Enter value for 1: *
Database Freespace Summary
TABLESPACE_NAME BLKSZ DFCT CT_FRAG MB_FREE_FRAG MB_FREE MB_TOTAL PCT_USED MAX_MB_FREE MAX_PCT_USED
----------------------------------- ------ ------ ------------ ------------ ----------- ------------ -------- ----------- ------------
*m s SYSTEM 8192 1 3 231 231 499 53.71 32,767 .82
*m s UNDOTBS1 8192 1 12 37 65 79 53.16 32,767 .13
*a s SYSAUX 8192 1 1 219 219 399 45.13 32,767 .55
*m s USERS 8192 1 2 1,021 1,021 1023 .18 1,023 .18
------ ----------- -----------
sum 4 1,536 99,324
ARROW:(SYS@tiger):PRIMARY>
free.sql
set line 150 echo off verify off ttitle - center 'Database Freespace Summary' skip 2 break on report COMPUTE sum of mb_used on report COMPUTE sum of mb_free on report COMPUTE sum of max_mb_free on report COMPUTE sum of dfct on report COLUMN mb_used format 99,999,999 COLUMN mb_free format 99,999,999 COLUMN max_mb_free format 99,999,999 COLUMN mb_free_frag format 99,999,999 COLUMN dfct format 99999 COLUMN blksz format 99999 COLUMN pct_used format 999.99 COLUMN max_pct_used format 999.99 SELECT DECODE(extent_management,'LOCAL','*',' ') || DECODE(segment_space_management,'AUTO','a ','m ') || DECODE(allocation_type,'SYSTEM','s ','u ') || fs.tablespace_name tablespace_name, block_size blksz, dfct, fs.nfrag ct_frag, fs.mxfrag / 1048576 mb_free_frag, fs.free_bytes / 1048576 mb_free, df.avail / 1048576 mb_total, (df.avail-fs.mxfrag)/df.avail*100 pct_used, df.max_bytes / 1048576 max_mb_free, (df.avail-fs.mxfrag)/df.max_bytes*100 max_pct_used FROM dba_tablespaces ts, (SELECT tablespace_name, count(*) dfct, SUM(decode(maxbytes,0,user_bytes,greatest(maxbytes,user_bytes))) max_bytes, SUM(user_bytes) avail FROM dba_data_files GROUP BY tablespace_name ) df, (SELECT tablespace_name, nvl(sum(bytes),0) free_bytes, count(bytes) nfrag, nvl(max(bytes),0) mxfrag FROM dba_free_space GROUP BY tablespace_name ) fs WHERE fs.tablespace_name = ts.tablespace_name(+) AND fs.tablespace_name = df.tablespace_name AND regexp_like(fs.tablespace_name,'&1','i') ORDER BY pct_used desc
