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RE: FW: [ Danone ] - Hung Oracle Query

From: lerobe - Lee Robertson <LEROBE_at_acxiom.co.uk>
Date: Wed, 14 Feb 2001 07:10:51 -0800
Message-ID: <F001.002B3DAE.20010214062651@fatcity.com>

Thanks for the responses from you guys. I went back to our developer with your suggestions and he said, wait for this one !!!

Oh I did select from all the tables in the query, I just chopped them out when I passed it onto you as I didn't think it was necessary.

Original problem was ...
Since the database was bounced Thursday morning I have a query which no
> longer runs - it just hangs. If I take out the join to X_CITY it works
> fine. I haven't changed any indexes and all the indexes are correct.
> Any ideas ?

Real SQL is as follows.

SELECT i.surname,

                    i.forename, 
                    a.address_line_1, 
                    a.address_line_2, 
                    a.address_line_3, 
                    a.address_line_4, 
                    a.postcode, 
                    c.city_desc, 
                    cp.phone_number, 
                    ce.email_address, 
                    i.date_of_birth, 
                    i.gender_code, 
                    i.ind_is_child, 
                    i.date_of_birth_calc_code, 
                    i.individual_id, 
                    h.household_id 
             FROM   changed_hh_keys  chh, 
                    household        h, 
                    address          a, 
                    x_city           c, 
                    individual       i, 
                    consumer_phone   cp, 
                    consumer_email   ce 
             WHERE  h.household_id        = chh.household_id 
             AND    a.household_id        = h.household_id 
             AND    i.household_id        = h.household_id 
             AND    c.city_code           = a.city_code 
             AND    cp.consumer_id(+)     = i.household_id 
             AND    ce.consumer_id(+)     = i.individual_id 
             AND    i.consumer_type_code != 'H';

and the plan is..

> SELECT STATEMENT Optimizer=CHOOSE (Cost=7224597105017
> Card=8024558972338880000000 Bytes=1492567968855030000000000)
> NESTED LOOPS (Cost=7224597105017 Card=8024558972338880000000
> Bytes=1492567968855030000000000)
> MERGE JOIN (OUTER) (Cost=7224597105017 Card=501781749669299000
> Bytes=86808242692788700000)
> SORT (JOIN) (Cost=7224597102585 Card=69188658282644
> Bytes=11070185325223000)
> NESTED LOOPS (Cost=3327368730 Card=69188658282644
> Bytes=11070185325223000)
> MERGE JOIN (Cost=3327368730 Card=6918865828264370
> Bytes=1017073276754860000)
> SORT (JOIN) (Cost=3327245772 Card=55237676133
> Bytes=6683758812093)
> NESTED LOOPS (Cost=831 Card=55237676133 Bytes=6683758812093)
> MERGE JOIN (OUTER) (Cost=831 Card=1054167 Bytes=86441694)
> SORT (JOIN)
> TABLE ACCESS (FULL) OF INDIVIDUAL (Cost=826
> Card=1285570 Bytes=88704330)
> SORT (JOIN) (Cost=4 Card=82 Bytes=1066)
> TABLE ACCESS (FULL) OF CONSUMER_EMAIL (Cost=1 Card=82
> Bytes=1066)
> INDEX (UNIQUE SCAN) OF HOUSEHOLD_PK (UNIQUE)
> SORT (JOIN) (Cost=122958 Card=12525628 Bytes=325666328)
> TABLE ACCESS (FULL) OF ADDRESS (Cost=23275 Card=12525628
> Bytes=325666328)
> INDEX (UNIQUE SCAN) OF X_CITY_PK (UNIQUE)
> SORT (JOIN) (Cost=2432 Card=725237 Bytes=9428081)
> INDEX (FULL SCAN) OF CONSUMER_PHONE_PK (UNIQUE) (Cost=26
> Card=725237 Bytes=9428081)
> INDEX (UNIQUE SCAN) OF CHANGED_HH_KEYS_PK (UNIQUE)

> Lee Robertson
> Acxiom
> Tel: 0191 525 7344
> Fax: 0191 525 7007
> Email: lerobe_at_acxiom.co.uk
>

-----Original Message-----
Sent: 09 February 2001 17:52
To: Multiple recipients of list ORACLE-L

Why do you even have the tables consumer_phone and consumer_email included in the query? Obviously you don't care if they have entries in them, and you're not selecting any info out of them. Remove them and see what happens.

>>> LEROBE_at_acxiom.co.uk 02/09/01 11:41AM >>> Can someone have alook at the problem below please and advise. I am stumped.

Regards

> -----Original Message-----
> From: jmydde - James Myddelton
> Sent: 09 February 2001 16:33
> To: lerobe - Lee Robertson
> Cc: rkilbe - Robert Kilbey
> Subject: [ Danone ] - Hung Oracle Query
>
>
> Lee,
>
> Since the database was bounced Thursday morning I have a query which no
> longer runs - it just hangs. If I take out the join to X_CITY it works
> fine. I haven't changed any indexes and all the indexes are correct.
> Any ideas ?
>
> James
>
> SELECT i.surname
> FROM changed_hh_keys chh,
> household h,
> address a,
> x_city c,
> individual i,
> consumer_phone cp,
> consumer_email ce
> WHERE h.household_id = chh.household_id
> AND a.household_id = h.household_id
> AND i.household_id = h.household_id
> AND i.consumer_type_code != 'H'
> AND c.city_code = a.city_code
> AND cp.consumer_id(+) = i.household_id
> AND ce.consumer_id(+) = i.individual_id;
>
> SELECT STATEMENT Optimizer=CHOOSE (Cost=7224597105017
> Card=8024558972338880000000 Bytes=1492567968855030000000000)
> NESTED LOOPS (Cost=7224597105017 Card=8024558972338880000000
> Bytes=1492567968855030000000000)
> MERGE JOIN (OUTER) (Cost=7224597105017 Card=501781749669299000
> Bytes=86808242692788700000)
> SORT (JOIN) (Cost=7224597102585 Card=69188658282644
> Bytes=11070185325223000)
> NESTED LOOPS (Cost=3327368730 Card=69188658282644
> Bytes=11070185325223000)
> MERGE JOIN (Cost=3327368730 Card=6918865828264370
> Bytes=1017073276754860000)
> SORT (JOIN) (Cost=3327245772 Card=55237676133
> Bytes=6683758812093)
> NESTED LOOPS (Cost=831 Card=55237676133 Bytes=6683758812093)
> MERGE JOIN (OUTER) (Cost=831 Card=1054167 Bytes=86441694)
> SORT (JOIN)
> TABLE ACCESS (FULL) OF INDIVIDUAL (Cost=826
> Card=1285570 Bytes=88704330)
> SORT (JOIN) (Cost=4 Card=82 Bytes=1066)
> TABLE ACCESS (FULL) OF CONSUMER_EMAIL (Cost=1 Card=82
> Bytes=1066)
> INDEX (UNIQUE SCAN) OF HOUSEHOLD_PK (UNIQUE)
> SORT (JOIN) (Cost=122958 Card=12525628 Bytes=325666328)
> TABLE ACCESS (FULL) OF ADDRESS (Cost=23275 Card=12525628
> Bytes=325666328)
> INDEX (UNIQUE SCAN) OF X_CITY_PK (UNIQUE)
> SORT (JOIN) (Cost=2432 Card=725237 Bytes=9428081)
> INDEX (FULL SCAN) OF CONSUMER_PHONE_PK (UNIQUE) (Cost=26
> Card=725237 Bytes=9428081)
> INDEX (UNIQUE SCAN) OF CHANGED_HH_KEYS_PK (UNIQUE)
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-- 
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-- 
Author: lerobe - Lee Robertson
  INET: LEROBE_at_acxiom.co.uk 

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Author: lerobe - Lee Robertson
  INET: LEROBE_at_acxiom.co.uk

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San Diego, California        -- Public Internet access / Mailing Lists
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Received on Wed Feb 14 2001 - 09:10:51 CST

Original text of this message

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