Row chaining issue in Oracle 10g

Hello All,
I was seeing row chaining issue in one of our production DB. Row chaining was present in all tables having LONG RAW columns.
As of now I am not supposed to change these to BLOB/CLOB, so I did exp/imp to solve the issue. However, we are repeating this excercise once every quarter, and now it is time we put a permanent fix to it.
One of such tables has below storage parameters:
PCTUSED    0
PCTFREE    10
INITRANS   1
MAXTRANS   255
STORAGE    (
            INITIAL          40K
            MINEXTENTS       1
            MAXEXTENTS       UNLIMITED
            PCTINCREASE      0
            BUFFER_POOL      DEFAULT
           )Can I be advised what would be the tuning options in above? Note: All of these tables are in GB's.
For any inputs, please let me know.
Thanks,
Suddhasatwa

SELECT table_name,
       Round(( blocks * 8 ) / 1024 / 1024, 2)
       "Physical Size (GB)",
       Round(( num_rows * avg_row_len / 1024 / 1024 / 1024 ), 2)
       "Actual Size (GB)",
       ( Round(( blocks * 8 ) / 1024 / 1024, 2) - Round((
         num_rows * avg_row_len / 1024 / 1024 / 1024 ), 2) )
       "Wasted Space (GB)"
FROM   dba_tables
WHERE  owner = 'SYSADM'
       AND ( Round(( blocks * 8 ) / 1024, 2) - Round(
                 ( num_rows * avg_row_len / 1024 / 1024 )
                                                   , 2) ) > 20
       AND table_name IN (SELECT table_name
                          FROM   dba_tab_columns
                          WHERE  data_type IN ( 'RAW', 'LONG RAW', 'LONG' ))
       AND table_name IN (SELECT table_name
                          FROM   dba_tab_columns
                          WHERE  data_type LIKE '%LONG%')
ORDER  BY ( Round(( blocks * 8 ) / 1024, 2) - Round(
                      ( num_rows * avg_row_len / 1024 / 1024 )
                                                        , 2) ) DESC; is the air inside the gas tank on your car considered "Wasted Space"?
would you car run any better if the size of the gas tank got reduced as gasoline was consumed?
Realize & understand that Oracle & does reused FREE SPACE without any manual intervention.
It appears you suffer from Complusive Tuning Disorder!

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