Oracle事务原理探究2--读书笔记五 - 数据库编程

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Oracle事务原理探究2--读书笔记五(八)

2015-07-24 11:48:20 来源: 作者: 【大中小】浏览:24次

09af.01e8.1c C--- 0 scn 0x0000.0035e07c 0x02 0x0004.00b.00000595 0x00c02694.0109.1e ---- 1 fsc 0x0000.00000000 --uba 变了，由 0x00c02694.0109.1d 变成了 0x00c02694.0109.1e bdba: 0x00416169 data_block_dump,data header at 0x1ce9705c ..... block_row_dump: tab 0, row 0, @0x1f7b tl: 10 fb: --H-FL-- lb: 0x2 cc: 2 col 0: [ 2] c1 02 col 1: [ 3] c2 02 03 tab 0, row 1, @0x1f8e tl: 9 fb: --H-FL-- lb: 0x0 cc: 2 col 0: [ 2] c1 03 col 1: [ 2] c1 03 tab 0, row 2, @0x1f85 tl: 9 fb: --H-FL-- lb: 0x0 cc: 2 col 0: [ 2] c1 04 col 1: [ 2] c1 04 end_of_block_dump undo块转储结果

*** 2015-01-04 23:06:31.347
===================
Undo Segment Header
===================
Start dump data blocks tsn: 2 file#:3 minblk 176 maxblk 176
Block dump from cache:
Dump of buffer cache at level 4 for tsn=2, rdba=12583088
....

  index  state cflags  wrap#    uel         scn            dba            parent-xid    nub     stmt_num    cmt
  ------------------------------------------------------------------------------------------------
   0x00    9    0x00  0x0593  0x000c  0x0000.0035df6c  0x00c02693  0x0000.000.00000000  0x00000002   0x00000000  1420382305
   0x01    9    0x00  0x056d  0x001e  0x0000.0035dcd1  0x00c02692  0x0000.000.00000000  0x00000001   0x00000000  1420381360
   0x02    9    0x00  0x0591  0x0005  0x0000.0035de9e  0x00c02692  0x0000.000.00000000  0x00000001   0x00000000  1420381960
   0x03    9    0x00  0x0594  0x0018  0x0000.0035e16f  0x00c02694  0x0000.000.00000000  0x00000001   0x00000000  1420382905
   0x04    9    0x00  0x0594  0x001f  0x0000.0035e189  0x00c02694  0x0000.000.00000000  0x00000001   0x00000000  1420382905
   0x05    9    0x00  0x0594  0x0009  0x0000.0035deed  0x00c02692  0x0000.000.00000000  0x00000001   0x00000000  1420382080
   0x06    9    0x00  0x0594  0x0019  0x0000.0035e080  0x00c02694  0x0000.000.00000000  0x00000001   0x00000000  1420382629
   0x07    9    0x00  0x0593  0x0002  0x0000.0035de5e  0x00c02692  0x0000.000.00000000  0x00000001   0x00000000  1420381815
   0x08    9    0x00  0x0594  0x000a  0x0000.0035e089  0x00c02693  0x0000.000.00000000  0x00000001   0x00000000  1420382629
   0x09    9    0x00  0x0592  0x001d  0x0000.0035df03  0x00c02692  0x0000.000.00000000  0x00000001   0x00000000  1420382080
   0x0a    9    0x00  0x0593  0x0011  0x0000.0035e0b8  0x00c02694  0x0000.000.00000000  0x00000001   0x00000000  1420382639
   0x0b   10    0x80  0x0595  0x0003  0x0000.00000000  0x00c02694  0x0000.000.00000000  0x00000001   0x00000000  0
   0x0c    9    0x00  0x0594  0x001c  0x0000.0035dfad  0x00c02693  0x0000.000.00000000  0x00000001   0x00000000  1420382440
   0x0d    9    0x00  0x0592  0x0014  0x0000.0035ddac  0x00c02692  0x0000.000.00000000  0x00000001   0x00000000  1420381705
 .......
*-----------------------------
* Rec #0x1d  slt: 0x0b  objn: 77560(0x00012ef8)  objd: 77560  tblspc: 0(0x00000000)
*       Layer:  11 (Row)   opc: 1   rci 0x00   
Undo type:  Regular undo    Begin trans    Last buffer split:  No 
Temp Object:  No 
Tablespace Undo:  No 
rdba: 0x00000000Ext idx: 0
flg2: 0
*-----------------------------
uba: 0x00c02694.0109.1c ctl max scn: 0x0000.0035dc32 prv tx scn: 0x0000.0035dc72
txn start scn: scn: 0x0000.0035e1d6 logon user: 0
 prev brb: 12592785 prev bcl: 0
KDO undo record:
KTB Redo 
op: 0x03  ver: 0x01  
compat bit: 4 (post-11) padding: 0
op: Z
KDO Op code: URP row dependencies Disabled
  xtype: XA flags: 0x00000000  bdba: 0x00416169  hdba: 0x00416168
itli: 2  ispac: 0  maxfr: 4863
tabn: 0 slot: 0(0x0) flag: 0x2c lock: 0 ckix: 0
ncol: 2 nnew: 1 size: -1
col  1: [ 2]  c1 02 
 
*-----------------------------
* Rec #0x1e  slt: 0x0b  objn: 77560(0x00012ef8)  objd: 77560  tbl

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