That looks like Steve Adam's script, he is pretty busy now it seems.
I guess his is right, but I haven't looked at what your talking about to
closely.
I have one on my site that does something similar.
"Do not criticize someone until you walked a mile in their shoes, that way
when you criticize them, you are a mile a way and have their shoes."
Christopher R. Spence
Oracle DBA
Phone: (978) 322-5744
Fax: (707) 885-2275
Fuelspot
73 Princeton Street
North, Chelmsford 01863
-----Original Message-----
Sent: Friday, September 07, 2001 11:27 AM
To: Multiple recipients of list ORACLE-L
> I get the cache_blocks.sql from this site. While I was executing this
> scripts I found a mistake.
>
> select
> e.owner||'.'||e.segment_name segment_name,
> sum(cur) cur_buffers,
> sum(cr) cr_buffers
> from
> ( select
> min(file#||'.'||dbablk) fb,
> sum(decode(state, 1, 1, 0)) cur,
> sum(decode(state, 3, 1, 0)) cr
> from
> sys.x_$bh
> where
> inst_id = userenv('Instance') and
> state in (1, 3)
> group by
> obj,
> class
> ) b,
> sys.apt_extents e
> where
> e.file_id = substr(b.fb, 1, instr(b.fb, '.') - 1) +1
> ---------- This line is comparing the file# wrongly, it should be
like
> this
>
> e.file_id = substr(b.fb, 1, instr(b.fb, '.') - 1) (without +1)
> substr(b.fb, instr(b.fb, '.') + 1) between e.block_id and e.block_id
> + e.blocks - 1 group by
> e.owner||'.'||e.segment_name
> order by
> 2
> /
>
>
> I notice this mistake becouse I have another script that shows the
> buffers cached in memory and the results of both of them was so
> different. The problem is that when it gets the segment_name, it
> looks the block in other file.
>
> I hope you mail me to answer if I am wrong.
>
> Thank you.
>
> Silvina Botindari.
>
>
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Author: Silvina Botindari
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