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Oracle中如何手工提交ClusterTable的事务(六)
53058142820=0x7fd50f1a4a64 kdxcolev 0 KDXCOLEV Flags = - - - kdxcolok 0 kdxcoopc 0x80: opcode=0: iot flags=--- is converted=Y kdxconco 1 kdxcosdc 0 kdxconro 3 kdxcofbo 42=0x2a kdxcofeo 7993=0x1f39 kdxcoavs 7951 kdxlespl 0 kdxlende 0 kdxlenxt 0=0x0 kdxleprv 0=0x0 kdxledsz 8 kdxlebksz 8032 row#0[8019] flag: ------, lock: 0, len=13, data:(8): 01 80 00 ac 00 00 01 00 col 0; len 2; (2): c1 02 row#1[8006] flag: ------, lock: 0, len=13, data:(8): 01 80 00 ad 00 00 01 00 col 0; len 2; (2): c1 03 row#2[7993] flag: ------, lock: 2, len=13, data:(8): 01 80 00 ae 00 00 01 00 col 0; len 2; (2): c1 09 ----- end of leaf block dump ----- |
可以看到，该index block中还存在3个index entry信息，我们需要将第3条信息给删掉，首先计算一下offset： ?
| 1 2 3 4 5 |
SQL> select 7993+76+24 from dual; 7993+76+24 |
+++++利用bbed修改 index block ?
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BBED> set file 6 block 187 FILE# 6 BLOCK# 187 BBED> map File: /oracle/oradata/roger/roger01.dbf (6) Block: 187 Dba:0x018000bb ------------------------------------------------------------ KTB Data Block (Index Leaf) struct kcbh, 20 bytes @0 struct ktbbh, 72 bytes @20 struct kdxle, 32 bytes @100 sb2 kd_off[3] @132 ub1 freespace[7951] @138 ub1 rowdata[39] @8089 ub4 tailchk @8188 BBED> set offset 8093 OFFSET 8093 BBED> x /rn rowdata[4] @8093 ---------- flag@8093: 0x00 (NONE) lock@8094: 0x02 keydata[8]: 0x01 0x80 0x00 0xae 0x00 0x00 0x01 0x00 data key: col 0[2] @8104: 8 BBED> map File: /oracle/oradata/roger/roger01.dbf (6) Block: 187 Dba:0x018000bb ------------------------------------------------------------ KTB Data Block (Index Leaf) struct kcbh, 20 bytes @0 struct ktbbh, 72 bytes @20 struct kdxle, 32 bytes @100 sb2 kd_off[3] @132 ub1 freespace[7951] @138 ub1 rowdata[39] @8089 ub4 tailchk @8188 BBED> p kdxle struct kdxle, 32 bytes @100 struct kdxlexco, 16 bytes @100 ub1 kdxcolev @100 0x00 ub1 kdxcolok @101 0x00 ub1 kdxcoopc @102 0x80 ub1 kdxconco @103 0x01 ub4 kdxcosdc @104 0x00000000 sb2 kdxconro @108 3 sb2 kdxcofbo @110 42 sb2 kdxcofeo @112 7993 sb2 kdxcoavs @114 7951 sb2 kdxlespl @116 0 sb2 kdxlende @118 0 ub4 kdxlenxt @120 0x00000000 ub4 kdxleprv @124 0x00000000 ub1 kdxledsz @128 0x08 ub1 kdxleflg @129 0x00 (NONE) BBED> d /v offset 118 count 2 File: /oracle/oradata/roger/roger01.dbf (6) Block: 187 Offsets: 118 to 119 Dba:0x018000bb ------------------------------------------------------- 0000 l .. <16 bytes per line> BBED> modify /x 01 offset 118 File: /oracle/oradata/roger/roger01.dbf (6) Block: 187 Offsets: 118 to 119 Dba:0x018000bb ------------------------------------------------------------------------ 0100 <32 bytes per line> BBED> sum apply Check value for File 6, Block 187: current = 0x4faa, required = 0x4faa BBED> verify DBVERIFY - Verification starting FILE = /oracle/oradata/roger/roger01.dbf BLOCK = 187 Block |
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