Oracle(block clean out)的块清除
2008-09-02 12:45:53 来源:WEB开发网提交成功
SQL>altersystemdumpdatafile8block36;
系统已更改。
Startdumpdatablockstsn:8file#:8minblk36maxblk36 buffertsn:8rdba:0x02000024(8/36) scn:0x0000.000b21dbseq:0x01flg:0x00tail:0x21db0601 frmt:0x02chkval:0x0000type:0x06=transdata Blockheaderdump:0x02000024 ObjectidonBlock?Y seg/obj:0x739dcsc:0x00.b21dbitc:2flg:Etyp:1-DATA brn:0bdba:0x2000021ver:0x01 inc:0exflg:0 ItlXidUbaFlagLckScn/Fsc 0x010x000a.02b.000001520x0080a0c5.002a.2aC---0scn0x0000.000b218f 0x020x000a.016.000001530x0080a0cf.002a.0b----1fsc0x0000.00000000 | |
----这里的FLAG已经清除
data_block_dump,dataheaderat0x3171064 =============== tsiz:0x1f98 hsiz:0x14 pbl:0x03171064 bdba:0x02000024 76543210 flag=-------- ntab=1 nrow=1 frre=-1 fsbo=0x14 fseo=0x42d avsp=0x419 tosp=0x419 0xe:pti[0]nrow=1offs=0 0x12:pri[0]offs=0x42d block_row_dump: tab0,row0,@0x42d tl:7019fb:--H-FL--lb:0x2cc:5 col0:[3]c24c3c col1:[2000] 2f31303037366232335f4f7261437573746f6d446174756d43 6c6f7375722020202020202020202020202020202020202020 20202020202020202020202020202020202020202020202020
... ... 数据内容部分省略
20202020202020202020202020202020202020202020202020 col2:[2000] 63202020202020202020202020202020202020202020202020 20202020202020202020202020202020202020202020202020 20202020202020202020202020202020202020202020202020 20202020202020202020202020202020202020202020202020 ...... 20202020202020202020202020202020202020202020202020 col3:[2000] 63202020202020202020202020202020202020202020202020 ...... 20202020202020202020202020202020202020202020202020 col4:[1000] 63202020202020202020202020202020202020202020202020 ...... 20202020202020202020202020202020202020202020202020 end_of_block_dump Enddumpdatablockstsn:8file#:8minblk36maxblk36 --delaycleanout延时块清除 SQL>updatet2setid=id,col1=col1,col2=’c’,col3=’c’,col4=’c’;--8M的更新数据 已更新1000行。 SQL>selectxidusn,xidslot,xidsqn,ubafil,ubablk,ubarecfromv$transaction; XIDUSNXIDSLOTXIDSQNUBAFILUBABLKUBAREC ------------------------------------------------------------ 38470267881 SQL>COMMIT;
- ››oracle 中 UPDATE nowait 的使用方法
- ››Oracle ORA-12560解决方法
- ››Oracle 10g RAC 常用维护命令
- ››Oracle如何在ASM中定位文件的分布
- ››Oracle的DBMS_RANDOM.STRING 的用法
- ››oracle 外部表导入时间日期类型数据,多字段导入
- ››Oracle中查找重复记录
- ››oracle修改用户登录密码
- ››Oracle创建删除用户、角色、表空间、导入导出等命...
- ››Oracle中登陆时报ORA-28000: the account is lock...
- ››Oracle数据库在配置文件中更改最大连接数
- ››Oracle中在pl/sql developer修改表的两种方式
赞助商链接