After Update 1.4 GB of space increase

Question

Hi,
Last week we updated 23233865 number of records on single column on two tables and we were table to see 1.4GB of growth on DB.
Total tables size=18GB data +10GB of indexes on this tables.
So Kindly guide me do i need to rebuild the indexes or any way to tell how space can be reclaimed.
select del_lf_rows * 100 / decode(lf_rows,0,1,lf_rows) from index_stats where name = 'TIBEX_ORDER_IDX_OLT';
declare
       segment_owner              VARCHAR2(30) default 'TRD_SRV_OWNER';
       segment_name               VARCHAR2(30) default 'TIBEX_ORDER_ID_ORD_INS';
       segment_type               VARCHAR2(30) default 'INDEX';
       total_blocks               NUMBER;
       total_bytes                NUMBER;
       unused_blocks              NUMBER;
       unused_bytes               NUMBER;
       last_used_extent_file_id   NUMBER;
      last_used_extent_block_id  NUMBER;
      last_used_block            NUMBER;
      partition_name             VARCHAR2(30) DEFAULT NULL;
   begin
      DBMS_SPACE.UNUSED_SPACE (
      segment_owner              ,
      segment_name               ,
      segment_type               ,
      total_blocks               ,
      total_bytes                ,
      unused_blocks              ,
      unused_bytes               ,
      last_used_extent_file_id   ,
      last_used_extent_block_id  ,
      last_used_block            ,
      partition_name             );
      dbms_output.put_line('total blk : ' || total_blocks               );
      dbms_output.put_line('Unused blk : ' || unused_blocks              );
      dbms_output.put_line('last unused blk : ' || last_used_block            );
  end ;
total blk : 560640
Unused blk : 0
last unused blk : 8192
  1  declare
  2         segment_owner              VARCHAR2(30) default 'TRD_SRV_OWNER';
  3         segment_name               VARCHAR2(30) default 'TIBEX_ORDER_IDX_OLT';
  4         segment_type               VARCHAR2(30) default 'INDEX';
  5         total_blocks               NUMBER;
  6         total_bytes                NUMBER;
  7         unused_blocks              NUMBER;
  8         unused_bytes               NUMBER;
  9         last_used_extent_file_id   NUMBER;
10        last_used_extent_block_id  NUMBER;
11        last_used_block            NUMBER;
12        partition_name             VARCHAR2(30) DEFAULT NULL;
13     begin
14        DBMS_SPACE.UNUSED_SPACE (
15        segment_owner              ,
16        segment_name               ,
17        segment_type               ,
18        total_blocks               ,
19        total_bytes                ,
20        unused_blocks              ,
21        unused_bytes               ,
22        last_used_extent_file_id   ,
23        last_used_extent_block_id  ,
24        last_used_block            ,
25        partition_name             );
26        dbms_output.put_line('total blk : ' || total_blocks               );
27        dbms_output.put_line('Unused blk : ' || unused_blocks              );
28        dbms_output.put_line('last unused blk : ' || last_used_block            );
29*   end ;
sys@SURV1> /
total blk : 296192
Unused blk : 0
last unused blk : 8192
  1  declare
  2         segment_owner              VARCHAR2(30) default 'TRD_SRV_OWNER';
  3         segment_name               VARCHAR2(30) default 'IX_ORDER_TIMESTAMP';
  4         segment_type               VARCHAR2(30) default 'INDEX';
  5         total_blocks               NUMBER;
  6         total_bytes                NUMBER;
  7         unused_blocks              NUMBER;
  8         unused_bytes               NUMBER;
  9         last_used_extent_file_id   NUMBER;
10        last_used_extent_block_id  NUMBER;
11        last_used_block            NUMBER;
12        partition_name             VARCHAR2(30) DEFAULT NULL;
13     begin
14        DBMS_SPACE.UNUSED_SPACE (
15        segment_owner              ,
16        segment_name               ,
17        segment_type               ,
18        total_blocks               ,
19        total_bytes                ,
20        unused_blocks              ,
21        unused_bytes               ,
22        last_used_extent_file_id   ,
23        last_used_extent_block_id  ,
24        last_used_block            ,
25        partition_name             );
26        dbms_output.put_line('total blk : ' || total_blocks               );
27        dbms_output.put_line('Unused blk : ' || unused_blocks              );
28        dbms_output.put_line('last unused blk : ' || last_used_block            );
29*   end ;
sys@SURV1> /
total blk : 197504
Unused blk : 0
last unused blk : 8192
  1  declare
  2         segment_owner              VARCHAR2(30) default 'TRD_SRV_OWNER';
  3         segment_name               VARCHAR2(30) default 'TIBEX_QUOTE_IDX_QLT';
  4         segment_type               VARCHAR2(30) default 'INDEX';
  5         total_blocks               NUMBER;
  6         total_bytes                NUMBER;
  7         unused_blocks              NUMBER;
  8         unused_bytes               NUMBER;
  9         last_used_extent_file_id   NUMBER;
10        last_used_extent_block_id  NUMBER;
11        last_used_block            NUMBER;
12        partition_name             VARCHAR2(30) DEFAULT NULL;
13     begin
14        DBMS_SPACE.UNUSED_SPACE (
15        segment_owner              ,
16        segment_name               ,
17        segment_type               ,
18        total_blocks               ,
19        total_bytes                ,
20        unused_blocks              ,
21        unused_bytes               ,
22        last_used_extent_file_id   ,
23        last_used_extent_block_id  ,
24        last_used_block            ,
25        partition_name             );
26        dbms_output.put_line('total blk : ' || total_blocks               );
27        dbms_output.put_line('Unused blk : ' || unused_blocks              );
28        dbms_output.put_line('last unused blk : ' || last_used_block            );
29*   end ;
sys@SURV1> /
total blk : 229760
Unused blk : 0
last unused blk : 8192
  1  declare
  2         segment_owner              VARCHAR2(30) default 'TRD_SRV_OWNER';
  3         segment_name               VARCHAR2(30) default 'IX_QUOTE_TIMESTAMP';
  4         segment_type               VARCHAR2(30) default 'INDEX';
  5         total_blocks               NUMBER;
  6         total_bytes                NUMBER;
  7         unused_blocks              NUMBER;
  8         unused_bytes               NUMBER;
  9         last_used_extent_file_id   NUMBER;
10        last_used_extent_block_id  NUMBER;
11        last_used_block            NUMBER;
12        partition_name             VARCHAR2(30) DEFAULT NULL;
13     begin
14        DBMS_SPACE.UNUSED_SPACE (
15        segment_owner              ,
16        segment_name               ,
17        segment_type               ,
18        total_blocks               ,
19        total_bytes                ,
20        unused_blocks              ,
21        unused_bytes               ,
22        last_used_extent_file_id   ,
23        last_used_extent_block_id  ,
24        last_used_block            ,
25        partition_name             );
26        dbms_output.put_line('total blk : ' || total_blocks               );
27        dbms_output.put_line('Unused blk : ' || unused_blocks              );
28        dbms_output.put_line('last unused blk : ' || last_used_block            );
29*   end ;
sys@SURV1> /
total blk : 147712
Unused blk : 0
last unused blk : 8192Current DB version 10.2.0.4 version on Solaris.
Question is:
Why did it used 1.4 GB of space only update.
Regards
Narasimha
Edited by: NarasimhaMurthy on 23-May-2010 13:20

Answer 1

Hi Ramesh,
Thanks for your reply.
trd_srv_owner@SURV1> declare
  2     l_fs1_bytes number;
  3     l_fs2_bytes number;
  4     l_fs3_bytes number;
  5     l_fs4_bytes number;
  6     l_fs1_blocks number;
  7     l_fs2_blocks number;
  8     l_fs3_blocks number;
  9     l_fs4_blocks number;
   l_full_bytes number;
10   11     l_full_blocks number;
12     l_unformatted_bytes number;
13     l_unformatted_blocks number;
14  begin
   dbms_space.space_usage(
15   16        segment_owner      => user,
      segment_name       => 'TIBEX_ORDER',
      segment_type       => 'TABLE',
17   18   19        fs1_bytes          => l_fs1_bytes,
20        fs1_blocks         => l_fs1_blocks,
21        fs2_bytes          => l_fs2_bytes,
22        fs2_blocks         => l_fs2_blocks,
23        fs3_bytes          => l_fs3_bytes,
24        fs3_blocks         => l_fs3_blocks,
25        fs4_bytes          => l_fs4_bytes,
26        fs4_blocks         => l_fs4_blocks,
27        full_bytes         => l_full_bytes,
28        full_blocks        => l_full_blocks,
29        unformatted_blocks => l_unformatted_blocks,
30        unformatted_bytes  => l_unformatted_bytes
31     );
32     dbms_output.put_line(' FS1 Blocks = '||l_fs1_blocks||' Bytes = '||l_fs1_bytes);
33     dbms_output.put_line(' FS2 Blocks = '||l_fs2_blocks||' Bytes = '||l_fs2_bytes);
34     dbms_output.put_line(' FS3 Blocks = '||l_fs3_blocks||' Bytes = '||l_fs3_bytes);
35     dbms_output.put_line(' FS4 Blocks = '||l_fs4_blocks||' Bytes = '||l_fs4_bytes);
   dbms_output.put_line('Full Blocks = '||l_full_blocks||' Bytes = '||l_full_bytes);
36   37  end;
38  /
FS1 Blocks = 6409 Bytes = 52502528
FS2 Blocks = 7 Bytes = 57344
FS3 Blocks = 7 Bytes = 57344
FS4 Blocks = 3612 Bytes = 29589504
Full Blocks = 1264078 Bytes = 10355326976
PL/SQL procedure successfully completed.
trd_srv_owner@SURV1> declare
  2     l_fs1_bytes number;
  3     l_fs2_bytes number;
  4     l_fs3_bytes number;
  5     l_fs4_bytes number;
  6     l_fs1_blocks number;
  7     l_fs2_blocks number;
  8     l_fs3_blocks number;
  9     l_fs4_blocks number;
10     l_full_bytes number;
11     l_full_blocks number;
   l_unformatted_bytes number;
12   13     l_unformatted_blocks number;
14  begin
15     dbms_space.space_usage(
16        segment_owner      => user,
17        segment_name       => 'TIBEX_QUOTE',
18        segment_type       => 'TABLE',
19        fs1_bytes          => l_fs1_bytes,
20        fs1_blocks         => l_fs1_blocks,
21        fs2_bytes          => l_fs2_bytes,
22        fs2_blocks         => l_fs2_blocks,
23        fs3_bytes          => l_fs3_bytes,
24        fs3_blocks         => l_fs3_blocks,
25        fs4_bytes          => l_fs4_bytes,
26        fs4_blocks         => l_fs4_blocks,
27        full_bytes         => l_full_bytes,
28        full_blocks        => l_full_blocks,
29        unformatted_blocks => l_unformatted_blocks,
30        unformatted_bytes  => l_unformatted_bytes
31     );
32     dbms_output.put_line(' FS1 Blocks = '||l_fs1_blocks||' Bytes = '||l_fs1_bytes);
33     dbms_output.put_line(' FS2 Blocks = '||l_fs2_blocks||' Bytes = '||l_fs2_bytes);
34     dbms_output.put_line(' FS3 Blocks = '||l_fs3_blocks||' Bytes = '||l_fs3_bytes);
35     dbms_output.put_line(' FS4 Blocks = '||l_fs4_blocks||' Bytes = '||l_fs4_bytes);
36     dbms_output.put_line('Full Blocks = '||l_full_blocks||' Bytes = '||l_full_bytes);
37  end;
38  /
FS1 Blocks = 7 Bytes = 57344
FS2 Blocks = 4 Bytes = 32768
FS3 Blocks = 2 Bytes = 16384
FS4 Blocks = 3367 Bytes = 27582464
Full Blocks = 1100447 Bytes = 9014861824
trd_srv_owner@SURV1> declare
  2     l_fs1_bytes number;
  3     l_fs2_bytes number;
  4     l_fs3_bytes number;
  5     l_fs4_bytes number;
  6     l_fs1_blocks number;
  7     l_fs2_blocks number;
  8     l_fs3_blocks number;
  9     l_fs4_blocks number;
10     l_full_bytes number;
11     l_full_blocks number;
12     l_unformatted_bytes number;
13     l_unformatted_blocks number;
14  begin
15     dbms_space.space_usage(
16        segment_owner      => user,
17        segment_name       => 'TIBEX_EDPMARKETSTATE',
      segment_type       => 'TABLE',
18   19        fs1_bytes          => l_fs1_bytes,
20        fs1_blocks         => l_fs1_blocks,
21        fs2_bytes          => l_fs2_bytes,
22        fs2_blocks         => l_fs2_blocks,
23        fs3_bytes          => l_fs3_bytes,
24        fs3_blocks         => l_fs3_blocks,
25        fs4_bytes          => l_fs4_bytes,
26        fs4_blocks         => l_fs4_blocks,
27        full_bytes         => l_full_bytes,
28        full_blocks        => l_full_blocks,
29        unformatted_blocks => l_unformatted_blocks,
30        unformatted_bytes  => l_unformatted_bytes
31     );
32     dbms_output.put_line(' FS1 Blocks = '||l_fs1_blocks||' Bytes = '||l_fs1_bytes);
33     dbms_output.put_line(' FS2 Blocks = '||l_fs2_blocks||' Bytes = '||l_fs2_bytes);
34     dbms_output.put_line(' FS3 Blocks = '||l_fs3_blocks||' Bytes = '||l_fs3_bytes);
35     dbms_output.put_line(' FS4 Blocks = '||l_fs4_blocks||' Bytes = '||l_fs4_bytes);
36     dbms_output.put_line('Full Blocks = '||l_full_blocks||' Bytes = '||l_full_bytes);
37  end;
38  /
FS1 Blocks = 6 Bytes = 49152
FS2 Blocks = 8 Bytes = 65536
FS3 Blocks = 4 Bytes = 32768
FS4 Blocks = 3803 Bytes = 31154176
Full Blocks = 163827 Bytes = 1342070784
PL/SQL procedure successfully completed.
trd_srv_owner@SURV1> declare
  2     l_fs1_bytes number;
  3     l_fs2_bytes number;
  4     l_fs3_bytes number;
  5     l_fs4_bytes number;
  6     l_fs1_blocks number;
  7     l_fs2_blocks number;
  8     l_fs3_blocks number;
  9     l_fs4_blocks number;
10     l_full_bytes number;
11     l_full_blocks number;
12     l_unformatted_bytes number;
13     l_unformatted_blocks number;
14  begin
15     dbms_space.space_usage(
16        segment_owner      => user,
17        segment_name       => 'TIBEX_INSTRUMENTADMIN',
18        segment_type       => 'TABLE',
19        fs1_bytes          => l_fs1_bytes,
20        fs1_blocks         => l_fs1_blocks,
21        fs2_bytes          => l_fs2_bytes,
22        fs2_blocks         => l_fs2_blocks,
23        fs3_bytes          => l_fs3_bytes,
24        fs3_blocks         => l_fs3_blocks,
25        fs4_bytes          => l_fs4_bytes,
26        fs4_blocks         => l_fs4_blocks,
27        full_bytes         => l_full_bytes,
28        full_blocks        => l_full_blocks,
29        unformatted_blocks => l_unformatted_blocks,
30        unformatted_bytes  => l_unformatted_bytes
31     );
32     dbms_output.put_line(' FS1 Blocks = '||l_fs1_blocks||' Bytes = '||l_fs1_bytes);
33     dbms_output.put_line(' FS2 Blocks = '||l_fs2_blocks||' Bytes = '||l_fs2_bytes);
34     dbms_output.put_line(' FS3 Blocks = '||l_fs3_blocks||' Bytes = '||l_fs3_bytes);
35     dbms_output.put_line(' FS4 Blocks = '||l_fs4_blocks||' Bytes = '||l_fs4_bytes);
36     dbms_output.put_line('Full Blocks = '||l_full_blocks||' Bytes = '||l_full_bytes);
37  end;
38  /
FS1 Blocks = 0 Bytes = 0
FS2 Blocks = 1 Bytes = 8192
FS3 Blocks = 2 Bytes = 16384
FS4 Blocks = 252 Bytes = 2064384
Full Blocks = 76779 Bytes = 628973568
PL/SQL procedure successfully completed.
I used one more procedure to find actual space
set verify off
set serverout on size 1000000
declare
   sql_stmt varchar2(1024);
   block_count number;
cursor tab is
    select owner, table_name,blocks   
    from dba_tables
    where owner=upper('TRD_SRV_OWNER') and table_name like UPPER('TIBEX_QUOTE');
l_db_block_size NUMBER;
begin
dbms_output.put_line('Displaying Actual Space Used for schema TRD_SRV_OWNER ');
dbms_output.put_line('Log file to Check_counts2.lst ....');
dbms_output.put_line('....');
SELECT value INTO l_db_block_size 
FROM v$parameter WHERE name='db_block_size';
FOR tab_rec IN tab LOOP
BEGIN
sql_stmt:='select count(distinct( dbms_rowid.rowid_block_number(rowid) )) from '
   ||tab_rec.owner||'.' ||tab_rec.table_name;
EXECUTE IMMEDIATE sql_stmt INTO block_count;
   dbms_output.put_line(rpad(tab_rec.table_name,30)
       ||' '||TO_CHAR(block_count*l_db_block_size)/1024/1024||' Mb'
       ||' ('||TO_CHAR(block_count*l_db_block_size)/1024||' Kb)'    
       ||' Analyze:'
           ||TO_CHAR(tab_rec.blocks*l_db_block_size)/1024/1024||' Mb'
       ||' ('||TO_CHAR(tab_rec.blocks*l_db_block_size)/1024||' Kb)'    
exception when others then
   dbms_output.put_line('Error counting rows for table '||tab_rec.table_name||' '||SQLERRM);
END;
end loop;
end;
Displaying Actual Space Used for schema TRD_SRV_OWNER
Log file to Check_counts2.lst ....
TIBEX_ORDER                    8585.90625 Mb (8791968 Kb) Analyze:9984.3203125 Mb (10223944 Kb)
PL/SQL procedure successfully completed.
Displaying Actual Space Used for schema TRD_SRV_OWNER
Log file to Check_counts2.lst ....
TIBEX_QUOTE                    7713.2265625 Mb (7898344 Kb) Analyze:8685.6484375 Mb (8894104 Kb)Regards
Narasimha
Edited by: NarasimhaMurthy on 24-May-2010 01:50