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验证:oracledelete数据库空间是可以重新被使用的(五)
2015-11-21 01:38:56 来源: 作者: 【 】 浏览:5
Tags:验证 oracledelete 数据库 空间 可以 重新 使用
-- ---------- ---------- ---------- ---------- T_ITDBA_1 0 18560 65536 8 T_ITDBA_1 1 18568 65536 8 T_ITDBA_1 2 18576 65536 8 T_ITDBA_1 3 18584 65536 8 T_ITDBA_1 4 18592 65536 8 T_ITDBA_1 5 18600 65536 8 T_ITDBA_1 6 18608 65536 8 T_ITDBA_1 7 18616 65536 8 T_ITDBA_1 8 18624 65536 8 T_ITDBA_1 9 18632 65536 8 T_ITDBA_1 10 18640 65536 8 SEGMENT_NAME EXTENT_ID BLOCK_ID BYTES BLOCKS ------------------------------ ---------- ---------- ---------- ---------- T_ITDBA_1 11 18648 65536 8 T_ITDBA_1 12 18656 65536 8 T_ITDBA_1 13 18664 65536 8 T_ITDBA_1 14 18672 65536 8 T_ITDBA_1 15 18680 65536 8 T_ITDBA_1 16 18688 1048576 128 T_ITDBA_1 17 18816 1048576 128 T_ITDBA_1 18 18944 1048576 128 T_ITDBA_1 19 19072 1048576 128 T_ITDBA_1 20 19200 1048576 128 T_ITDBA_1 21 19328 1048576 128 22 rows selected. Elapsed: 00:00:00.01 SQL> update T_ITDBA_1 set owner='0'; 80528 rows updated. Elapsed: 00:00:03.28 SQL> commit; Commit complete. Elapsed: 00:00:00.00 SQL> select segment_name,extent_id,block_id,bytes,blocks from dba_extents where segment_name= 'T_ITDBA_1'; SEGMENT_NAME EXTENT_ID BLOCK_ID BYTES BLOCKS ------------------------------ ---------- ---------- ---------- ---------- T_ITDBA_1 0 18560 65536 8 T_ITDBA_1 1 18568 65536 8 T_ITDBA_1 2 18576 65536 8 T_ITDBA_1 3 18584 65536 8 T_ITDBA_1 4 18592 65536 8 T_ITDBA_1 5 18600 65536 8 T_ITDBA_1 6 18608 65536 8 T_ITDBA_1 7 18616 65536 8 T_ITDBA_1 8 18624 65536 8 T_ITDBA_1 9 18632 65536 8 T_ITDBA_1 10 18640 65536 8 SEGMENT_NAME EXTENT_ID BLOCK_ID BYTES BLOCKS ------------------------------ ---------- ---------- ---------- ---------- T_ITDBA_1 11 18648 65536 8 T_ITDBA_1 12 18656 65536 8 T_ITDBA_1 13 18664 65536 8 T_ITDBA_1 14 18672 65536 8 T_ITDBA_1 15 18680 65536 8 T_ITDBA_1 16 18688 1048576 128 T_ITDBA_1 17 18816 1048576 128 T_ITDBA_1 18 18944 1048576 128 T_ITDBA_1 19 19072 1048576 128 T_ITDBA_1 20 19200 1048576 128 T_ITDBA_1 21 19328 1048576 128 22 rows selected. Elapsed: 00:00:00.01 SQL> insert into T_ITDBA_1 select * from dba_extents; 10087 rows created. Elapsed: 00:00:01.95 SQL> commit; Commit complete. Elapsed: 00:00:00.01 SQL> select segment_name,extent_id,block_id,bytes,blocks from dba_extents where segment_name= 'T_ITDBA_1'; SEGMENT_NAME EXTENT_ID BLOCK_ID BYTES BLOCKS ------------------------------ ---------- ---------- ---------- ---------- T_ITDBA_1 0 18560 65536 8 T_ITDBA_1 1 18568 65536 8 T_ITDBA_1 2 18576 65536 8 T_ITDBA_1 3 18584 65536 8 T_ITDBA_1 4 18592 65536 8 T_ITDBA_1 5 18600 65536 8 T_ITDBA_1 6 18608 65536 8 T_ITDBA_1 7 18616 65536 8 T_ITDBA_1 8 18624 65536 8 T_ITDBA_1 9 18632 65536 8 T_ITDBA_1 10 18640 65536 8 SEGMENT_NAME EXTENT_ID BLOCK_ID BYTES BLOCKS ------------------------------ ---------- ---------- ---------- ---------- T_ITDBA_1 11 18648 65536 8 T_ITDBA_1 12 18656 65536 8 T_ITDBA_1 13 18664 65536 8 T_ITDBA_1 14 18672 65536 8 T_ITDBA_1 15 18680 65536 8 T_ITDBA_1 16 18688 1048576 128 T_ITDBA_1 17 18816 1048576 128 T_ITDBA_1 18 18944 1048576 128 T_ITDBA_1 19 19072 1048576 128 T_ITDBA_1 20 19200 1048576 128 T_ITDBA_1 21 19328 1048576 128 22 rows selected. Elapsed: 00:00:00.02 SQL> insert into T_ITDBA_1 select * from T_ITDBA_1 where owner<>'0'; 10087 rows created. Elapsed: 00:00:00.03 SQL> / 20174 rows created. Elapsed: 00:00:00.06 SQL> / 40348 rows created. Elapsed: 00:00:00.10 SQL> / 80696 rows created. Elapsed: 00:00:00.21 SQL> / / 161392 rows created. Elapsed: 00:00:00.65 SQL> / 322784 rows created. Elapsed: 00:00:02.09 SQL> commit; SP2-0042: unknown command "/commit" - rest of line ignored. SQL> commit;
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