automatic undo mysteries
- From: amit.poddar@xxxxxxxx
- To: oracle-l@xxxxxxxxxxxxx
- Date: Tue, 29 Nov 2005 16:17:33 -0500
Hi,
Please look at the alert log error I got
It shows ORA-01555 but the query duration is 0 seconds. How is that
possible that query goe the error just after starting
this is Oracle 9.2.0.5 running with automatic undo with undo_retention
= 36000
ORA-01555 caused by SQL statement below (Query Duration=0 sec, SCN:
0x000c.46f0197a):
Sat Nov 26 01:01:32 2005
SELECT
"EFFECTIVE_START_DATE","EFFECTIVE_END_DATE","POSITION_ID","ASSIGNMENT_STATUS_TYPE_ID","PERSON_ID","ORGANIZATION_ID","ASS_ATTRIBUTE9","A
SS_ATTRIBUTE16" FROM "HR"."PER_ALL_ASSIGNMENTS_F" "AL1" WHERE
"EFFECTIVE_END_DATE">=:1 AND "EFFECTIVE_START_DATE"<=:2 AND
"ASS_ATTRIBUTE9" LIK
E 'CRN%' AND
(TO_DATE(SUBSTR("ASS_ATTRIBUTE16",1,10),'YYYY/MM/DD')>TO_DATE('16-FEB-'||TO_CHAR(:3,'YYYY'),'DD-MON-YYYY')
AND TO_DATE(SUBSTR("AS
S_ATTRIBUTE16",1,10),'YYYY/MM/DD')<=TO_DATE('31-MAY-'||TO_CHAR(:4,'YYYY'),'DD-MON-YYYY')
OR TO_DATE(SUBSTR("ASS_ATTRIBUTE16",1,10),'YYYY/MM/DD
')>TO_DATE('01-OCT-'||TO_CHAR(:5,'YYYY'),'DD-MON-YYYY') AND
TO_DATE(SUBSTR("ASS_ATTRIBUTE16",1,10),'YYYY/MM/DD')<=TO_DATE('15-JAN-'||TO_CHAR(T
O_NUMBER(TO_CHAR(:6,'YYYY'))+1),'DD-MON-YYYY'))
Sat Nov 26 01:31:30 2005
I also checked stats$undostat that shows ssolderrcnt as 1 for the time
interval
but it shows 0 for both for all others block resue and steal counts.
So why is the query getting snapshot tool old.
Could any out guys could clarify my confustion
thanks
amit
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