RE: sql error
- From: "McPeak, Matt" <vxsmimmcp@xxxxxxxxxx>
- To: "SUzzell@xxxxxxxxxx" <SUzzell@xxxxxxxxxx>, "'JSweetser@xxxxxxxx'" <JSweetser@xxxxxxxx>, "Brian.Zelli@xxxxxxxxxxxxxxx" <Brian.Zelli@xxxxxxxxxxxxxxx>, "oracle-l (oracle-l@xxxxxxxxxxxxx)" <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 17 Jun 2014 16:09:06 +0000
Slight optimization (I invite thoughts from the experts who lurk here...): add
"ORDER BY UC.ROWID" in the SELECT portion.
If the update is very large and the join plan doesn't return rows in ROWID
order, then the update hits the same blocks many times, degrading performance
(badly, I have found).
Matt
From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On
Behalf Of Uzzell, Stephan
Sent: Monday, June 16, 2014 3:17 PM
To: 'JSweetser@xxxxxxxx'; Brian.Zelli@xxxxxxxxxxxxxxx; oracle-l
(oracle-l@xxxxxxxxxxxxx)
Cc: Uzzell, Stephan
Subject: RE: sql error
Assuming roswellrlm is the schema, and u_callannotate and u_c_b are tables,
this seems like the perfect place for an update a join:
Something like this (not tested as I don't have your schema) might do what you
want:
update
(
select
uc.er
, ucb.er new_er
, uc.pr
, ucb.pr new_pr
, uc.her2
, ucb.her2 new_her2
from
U_COLLANNOTATE uc
, u_c_b ucb
where
uc.collannotateid = ucb.u_caid
)
set
er = new_er
, pr = new_pr
, her2 = new_her2
/
Stephan Uzzell | Senior Database Administrator | Managed Services |MICROS
Systems, Inc.
Direct: 443.285.8000x2345 | Mobile: 443.864.1725 |
suzzell@xxxxxxxxxx<mailto:suzzell@xxxxxxxxxx> |
www.micros.com<blocked::http://www.micros.com>
From: oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx>
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Sweetser, Joe
Sent: Monday, 16 June, 2014 15:06
To: Brian.Zelli@xxxxxxxxxxxxxxx<mailto:Brian.Zelli@xxxxxxxxxxxxxxx>; oracle-l
(oracle-l@xxxxxxxxxxxxx<mailto:oracle-l@xxxxxxxxxxxxx>)
Subject: RE: sql error
Could it be the period in the table_name?
roswellrlm.u_c_b.u_caid
roswellrlm.u_c_b_u_caid ?
Is rosellrlm a schema?
-joe
From: oracle-l-bounce@xxxxxxxxxxxxx<mailto:oracle-l-bounce@xxxxxxxxxxxxx>
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Zelli, Brian
Sent: Monday, June 16, 2014 12:54 PM
To: oracle-l (oracle-l@xxxxxxxxxxxxx<mailto:oracle-l@xxxxxxxxxxxxx>)
Subject: sql error
update roswellrlm.U_COLLANNOTATE
set U_COLLANNOTATE.ER = roswellrlm.u_c_b.ER,
U_COLLANNOTATE.PR = roswellrlm.u_c_b.PR,
U_COLLANNOTATE.HER2 = roswellrlm.u_c_b.HER2
where u_collannotate.u_collannotateid = roswellrlm.u_c_b.u_caid;
I try and run this and I get:
ORA-00904: "ROSWELLRLM"."U_CE_B"."U_CAID": invalid identifier
What the heck is wrong? At first I thought the name was too long so I
shortened it but it is still the same error.
Brian
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