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Home -> Community -> Mailing Lists -> Oracle-L -> Re: Undo/Redo Block Dumps
U said the right thing steve I cant believe why people dont appreciate the
hard work the other man does,If u dont know the answer dont please keep
mmm,and let others answer the Q's ,we are slogging our butts here to
understand what this bloody oracle, the deeper we go the more mysterious it
get and its challenging,
Please do not write what ever u feel.
This is one group from where i learnt so much myself and i cant accept some
stupid answers.
Okay smart guy forget debugging the dumps can u tell me the answer for the
following
I ran the following query to identify the number of versions of a block .
The Block 40462, File#16 has 23 versions in CR mode. My question is why is
there 23 versions of BLOCK - 40462, FILE# 23 when there are no
updates,deletes,inserts going on in that table. This is a static table and
is in the KEEP POOL. Only selects are occuring against this table since DB
startup.
select count(*),file#,block#,status from v$bh
group by file#,block#,status having count(*) > 5
order by 2,3,1;
COUNT(*) FILE# BLOCK# STAT
---------- ---------- ---------- ----
9 1 20178 cr 8 10 740 cr 23 16 40462 cr17 16 40636 cr
COUNT(*) FILE# BLOCK# STAT
---------- ---------- ---------- ----
6 79 30775 cr 6 79 30798 cr6 79 30799 cr
22 rows selected.
I ran a query to identify which objects are present in which pool. If the CR blocks of the objects in the KEEP buffer pool are created in DEFAULT buffer pool , I am not seeing any blocks belonging to the above object FILE 16 BLOCK 40462 any where in the DEFAULT buffer pool. Can U tell me where I am going wrong ?
> Hello San,
>
> Maybe. I read a lot of dumps, and it does "waste" time. But the knowledge
that
> it gives me often saves time during crises when there is no time to waste.
>
> @ Regards,
> @ Steve Adams
> @ http://www.ixora.com.au/
> @ http://www.christianity.net.au/
>
>
> -----Original Message-----
> Sent: Saturday, 25 November 2000 13:31
> To: Multiple recipients of list ORACLE-L
>
>
> U R wasting UR time
>
> San
> --
>
> On Fri, 24 Nov 2000 02:35:37
> K Gopalakrishnan wrote:
> >Hi !
> >
> >This is definitely not a week end question...:)
> >
> >I have dumped some redo blocks and undo blocks for a
> >transaction.. Now the part 2. How do i decrypt ?
> >
> >Any one there to help us?
> >
> >-----------------------------
> >index undo for leaf key operations
> >KTB Redo
> >op: 0x02 ver: 0x01
> >op: C uba: 0x00800801.0059.67
> >Dump kdilk : itl=2, kdxlkflg=0x1 sdc=426409604
> >indexid=0x40012b block=0x0040668c
> >mark leaf row deleted
> >key :(9): 04 c3 03 0f 44 03 c2 11 51
> >keydata/bitmap : (6): 00 40 66 79 00 8f
> >*-----------------------------
> >* Rec #0x2 slt: 0x61 objn: 64(0x00000040) objd: 64
> >tblspc: 0(0x00000000)
> >* Layer: 11 (Row) opc: 1 rci 0x01
> >Undo type: Regular undo Last buffer split: No
> >Temp Object: No
> >Tablespace Undo: No
> >rdba: 0x00000000
> >*-----------------------------
> >KDO undo record:
> >KTB Redo
> >op: 0x02 ver: 0x01
> >op: C uba: 0x00800801.0059.68
> >KDO Op code: DRP xtype: XA bdba: 0x00406754 hdba:
> >0x004000cf
> >itli: 1 ispac: 0 maxfr: 4863
> >tabn: 0 slot: 333(0x14d)
> >*-----------------------------
> >* Rec #0x3 slt: 0x61 objn: 109(0x0000006d) objd:
> >109 tblspc: 0(0x00000000)
> >* Layer: 10 (Index) opc: 22 rci 0x02
> >Undo type: Regular undo Last buffer split: No
> >Temp Object: No
> >Tablespace Undo: No
> >rdba: 0x00000000
> >------------------------------
> >
> >
> >
> >
> >=====
> >Have a nice day !!
> >------------------------------------------------------------
> >Best Regards,
> >K Gopalakrishnan,
> >Bangalore, INDIA.
> >
> >__________________________________________________
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> >Yahoo! Shopping - Thousands of Stores. Millions of Products.
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> >--
> >Please see the official ORACLE-L FAQ: http://www.orafaq.com
> >--
> >Author: K Gopalakrishnan
> > INET: kaygopal_at_yahoo.com
> >
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Steve Adams
> INET: steve.adams_at_ixora.com.au
>
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Received on Sun Nov 26 2000 - 10:40:14 CST
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