Re: select count(*)

Hi,

I am new in ORACLE. I tried the analyse statement but it does not show anything:

analyze table item compute statistics

it displays nothing. Would you mind teaching a newbie a bit?

dhruba <tapashc_at_my-deja.com> wrote in message news:8lqa61$7l9$1_at_nnrp1.deja.com...
> Hi,
>
> I have a table of 10 million rows with 20 columns
>
> analyze table1 shows this:-----
>
>
> NUM_ROWS AVG_SPACE AVG_ROW_LEN SAMPLE_SIZE BUFFER_
> --------- --------- ----------- ----------- -------
> 9342920 227 61 1064 DEFAULT
>
> on my machine NT4 with SP6 524MB RAM ,
> select count(*) from table1 takes around about 1 mt 40 secs;
> select count(1) from table1 also takes 1mt 20 secs.
>
>
> I have a primary key on this table .
> and some column indexes.
>
> .. The database size is approx 4GB
> .. Index tablespace are different from data tablespace.
>
> table & index storage parameter not taken care.
>
> In this is this performence OK?
> or it can be improved & how ?
>
> any advice will be appreciated
> Thanks in advance
>
> Tcy
>
>
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> Before you buy.
Received on Fri Jul 28 2000 - 00:00:00 CDT