Database logical segment details..

Question

db: 11g
OS: unix
friends & gurus,
I am trying to get database logical segment details along with datafile id and tablespace name...
just want to confirm I'm progressing in right direction...
trying to get following
1. owner,
2. segment_name,
3. partition_name,
4. file_id (datafile id)
5. segment_type
6. extent_ct (number of extents occupies in the datafile)
7. size_k (space in kb occupy that this obect is occupying in the datafile)
I have come up with below sql... is it correct or more changes required?
I have got feeling that I'm missing something for 6 & 7
SELECT
dbs.owner, dbs.segment_name, dbs.partition_name, df.file_id, dbs.segment_type, dbs.extents, (dbs.bytes)/1024 size_k
FROM
dba_data_files df,
dba_tablespaces tbs,
dba_segments dbs
WHERE
df.tablespace_name = tbs.tablespace_name
and tbs.tablespace_name = dbs.tablespace_name
and tbs.contents = 'PERMANENT'
order by 1,2
/ thank you...

Answer 1

This is not exactly what you want but is maybe close enough: to get extent numbers and extents size per owner, segment_name, segment_type and datafile:
set echo on
set linesize 132
spool tes.log
column owner format a10
column segment_name format a40
select owner, segment_name, segment_type, file_id, count(*) as ext_nb, sum(bytes/1024/1024) as ext_mb
from dba_extents
group by owner, segment_name, segment_type, file_id
order by 1,2,3,4;
OUTLN      OL$                                      TABLE                       1          1      .0625
OUTLN      OL$HINTS                                 TABLE                       1          1      .0625
OUTLN      OL$HNT_NUM                               INDEX                       1          1      .0625
OUTLN      OL$NAME                                  INDEX                       1          1      .0625
OUTLN      OL$NODES                                 TABLE                       1          1      .0625
OUTLN      OL$NODE_OL_NAME                          INDEX                       1          1      .0625
OUTLN      OL$SIGNATURE                             INDEX                       1          1      .0625
OWNER      SEGMENT_NAME                             SEGMENT_TYPE          FILE_ID     EXT_NB     EXT_MB
OUTLN      SYS_IL0000000453C00021$$                 LOBINDEX                    1          1      .0625
OUTLN      SYS_LOB0000000453C00021$$                LOBSEGMENT                  1          1      .0625
SCOTT      BONUS                                    TABLE                       4          2       .125
SCOTT      DEPT                                     TABLE                       4          1      .0625
SCOTT      EMP                                      TABLE                       4          1      .0625
SCOTT      EMP_RANGE                                TABLE PARTITION             4          5      .3125
SCOTT      PK_DEPT                                  INDEX                       4          1      .0625
SCOTT      PK_EMP                                   INDEX                       4          1      .0625
SCOTT      SALGRADE                                 TABLE                       4          1      .0625
SYS        ACCESS$                                  TABLE                       1         18          3
SYS        ALERT_QT                                 TABLE                       3          3      .1875
OWNER      SEGMENT_NAME                             SEGMENT_TYPE          FILE_ID     EXT_NB     EXT_MB
SYS        APPLY$_CONF_HDLR_COLUMNS                 TABLE                       1          1      .0625
SYS        APPLY$_CONF_HDLR_COLUMNS_UNQ1            INDEX                       1          1      .0625
SYS        APPLY$_CONF_HDLR_COLUMNS_UNQ2            INDEX                       1          1      .0625
SYS        APPLY$_CONSTRAINT_COLUMNS                TABLE                       1          1      .0625
SYS        APPLY$_CONSTRAINT_COLUMNS_IDX1           INDEX                       1          1      .0625
SYS        APPLY$_CONSTRAINT_COLUMNS_UIX1           INDEX                       1          1      .0625
SQL>