Oracle Database Discussions

SQL> declare
2
3 l_fs1_bytes number;
4 l_fs2_bytes number;
5 l_fs3_bytes number;
6 l_fs4_bytes number;
7 l_fs1_blocks number;
8 l_fs2_blocks number;
9 l_fs3_blocks number;
10 l_fs4_blocks number;
11 l_full_bytes number;
12 l_full_blocks number;
13 l_unformatted_bytes number;
14 l_unformatted_blocks number;
15 begin
16 dbms_space.space_usage(
17 segment_owner => 'TEST',
18 segment_name => 'EDGE_REQ_LOG',
19 segment_type => 'TABLE',
20 fs1_bytes => l_fs1_bytes,
21 fs1_blocks => l_fs1_blocks,
22 fs2_bytes => l_fs2_bytes,
23 fs2_blocks => l_fs2_blocks,
24 fs3_bytes => l_fs3_bytes,
25 fs3_blocks => l_fs3_blocks,
26 fs4_bytes => l_fs4_bytes,
27 fs4_blocks => l_fs4_blocks,
28 full_bytes => l_full_bytes,
29 full_blocks => l_full_blocks,
30 unformatted_blocks => l_unformatted_blocks,
31 unformatted_bytes => l_unformatted_bytes
32 );
33 dbms_output.put_line(' FS1 Blocks = '||l_fs1_blocks||' Bytes = '||l_fs1_bytes);
34 dbms_output.put_line(' FS2 Blocks = '||l_fs2_blocks||' Bytes = '||l_fs2_bytes);
35 dbms_output.put_line(' FS3 Blocks = '||l_fs3_blocks||' Bytes = '||l_fs3_bytes);
36 dbms_output.put_line(' FS4 Blocks = '||l_fs4_blocks||' Bytes = '||l_fs4_bytes);
37 dbms_output.put_line('Full Blocks = '||l_full_blocks||' Bytes = '||l_full_bytes
38 end;
39 /

PL/SQL procedure successfully completed.

SQL> set serveroutput on
SQL> /
FS1 Blocks = 1 Bytes = 8192
FS2 Blocks = 0 Bytes = 0
FS3 Blocks = 0 Bytes = 0
FS4 Blocks = 169 Bytes = 1384448
Full Blocks = 22291 Bytes = 182607872

PL/SQL procedure successfully completed.

pls. help and tell me what the meaning of FS1,FS2,FS3,FS4 and Full Blocks rows

Regards