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开发学院数据库Oracle Oracle(block clean out)的块清除 阅读

Oracle(block clean out)的块清除

 2008-09-02 12:45:53 来源:WEB开发网   
核心提示: 大于10%的块也被清除成功 data_block_dump,dataheaderat0x3321064===tsiz:0x1f98hsiz:0x14pbl:0x03321064bdba:0x0200002476543210flag=ntab=1nrow=1frre=-1fsbo=0x14f

----大于10%的块也被清除成功  

data_block_dump,dataheaderat0x3321064   ===============   tsiz:0x1f98   hsiz:0x14   pbl:0x03321064   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:0x0cc:5   col0:[3]c24c3c   col1:[2000]   2f31303037366232335f4f7261437573746f6d446174756d43   6c6f7375722020202020202020202020202020202020202020   20202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   col2:[2000]   63202020202020202020202020202020202020202020202020   20202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   col3:[2000]   63202020202020202020202020202020202020202020202020   20202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   col4:[1000]   63202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   end_of_block_dump   Enddumpdatablockstsn:8file#:8minblk36maxblk36   Startdumpdatablockstsn:8file#:8minblk1160maxblk1160   buffertsn:8rdba:0x02000488(8/1160)   scn:0x0000.000b305aseq:0x01flg:0x00tail:0x305a0601   frmt:0x02chkval:0x0000type:0x06=transdata   Blockheaderdump:0x02000488   ObjectidonBlock?Y   seg/obj:0x739dcsc:0x00.b305aitc:2flg:Etyp:1-DATA   brn:0bdba:0x200040aver:0x01   inc:0exflg:0   ItlXidUbaFlagLckScn/Fsc   0x010x0008.000.000001d70x00801ec8.0046.01C---0scn0x0000.000b3059   0x020x0003.008.000001d60x00801a84.004a.01C---0scn0x0000.000b2b52   |   |

----小于10%的块不变  

data_block_dump,dataheaderat0x3321064   ===============   tsiz:0x1f98   hsiz:0x14   pbl:0x03321064   bdba:0x02000488   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:0x0cc:5   col0:[3]c30230   col1:[2000]   2f33393239373838395f42797465436f6d706f6e656e745261   73746572202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   col2:[2000]   63202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   col3:[2000]   63202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   col4:[1000]   63202020202020202020202020202020202020202020202020   ......   20202020202020202020202020202020202020202020202020   end_of_block_dump   Enddumpdatablockstsn:8file#:8minblk1160maxblk1160

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