Query On V$session_longops Taking Over 5 Minutes

Jan 18, 2013

I am working with a new client and am still waiting on access to systems so I'm a bit hampered in looking at details of the database and environment. The database is OLTP and typical response time for returning result sets is under 2 seconds, often less than 1 second.

A simple SELECT on a few columns of v$session_longops (no subqueries, group by, having, etc) ran for more than 5 minutes.

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The below query is taking more than 5minutes to return the data for any criteria.The big tables are

SECURITY_POSITION_SUMMARY -- 60Million
WEB_TEAM_X_ACCOUNT_BM -- 26Million

and the rest of those are small tables..All the indexes are in place and I have tried with few hints but this query is slow.

WITH REPS
AS (SELECT DISTINCT REP_SET.FILTER_TOKEN
FROM (SELECT /*+ INDEX (wdsd WEBDATASETDTL_PK_TEAM) */
DISTINCT
WDSD.DATA_SETTING_ID, WDSD.FILTER_TOKEN
FROM WEB_DATA_SETTING_DETAIL WDSD,
[code]....

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SELECT ac.ar_id AS acct_ar_id, m.msrmnt_prd_dt AS msrmnt_prd_dt
--removed the rest of column list to reduce size of code.
FROM edxf.ar_rsrv_mnth_v ac,
edxf.crdt_acct_mnth_v c,
edxf.crdt_acct_v ca,
(SELECT msrmnt_prd_id, msrmnt_prd_dt
FROM edxf.msrmnt_prd_v
WHERE msrmnt_prd_id =
[code]....

Also, the count of data in the views is as below.

ViewTotal countCount for 1 msrmnt_prd_id
---------------------------------------------------------
ar_rsrv_mnth_v1841892281945
crdt_acct_mnth_v664941457087369
crdt_acct_v12258728NA

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[Code]...

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select
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(select /*+ full parallel(producttask 16) */productid from producttask where
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[code]....

Explain plan output:

Plan hash value: 2779236890
-----------------------------------------------------------------------------------------------------------------------------------------
| Id | Operation | Name| Rows| Bytes | Cost (%CPU)| Time| Pstart| Pstop |
-----------------------------------------------------------------------------------------------------------------------------------------
| 0 | SELECT STATEMENT || 1 | 29 | 9633M (8)|999:59:59 |||
|* 1 | FILTER |||| ||||
| 2 | PARTITION RANGE ALL || 738M| 19G| 6321K (1)| 21:04:17 | 1 | 6821 |

[code]....

Predicate Information (identified by operation id):
---------------------------------------------------
1 - filter( EXISTS (<not feasible>)
4 - filter("PRODUCTID"=:B1)
5 - filter(ROWNUM<100)
12 - access("MODELID"=:B1)

[code]....

Note: - SQL profile "SYS_SQLPROF_014153616b850002" used for this statement

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SELECT ancestor,
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Max(D.sialarmstate) SIALARMSTATE,
Max(D.uncralarmstate) UNCRALARMSTATE,
Max(M.commstate) COMMSTATE,
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I need below proc like...

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)
is
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begin

[code]....

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My procedure is run for every 15 minutes. Now suppose if I am running for old dat, then I should get the difference of dates by taking

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Divide this by 15 , round that value and loop to run the procedure for that n times. My doubt is when I am saying

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Jun 14, 2012

how to get correct result for the time subtraction of minutes for the following query

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result from dual

RESULT
----------
25

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Apr 9, 2013

I need the query to calculate minutes from difference of to number fields. Test case is as below.

DROP TABLE tmp;

CREATE TABLE tmp
(
code NUMBER(4),
stime NUMBER(4,2),
otime NUMBER(4,2)
)
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
NOMONITORING;
[code]......

CODE STIME OTIME
---------- ---------- ----------
1065 20 19.49
1082 20 18.57
1279 19.3 18.59
2075 19.3 15.32

Required output is

CODE STIME OTIME HR_MIN MINUTES
---------- ---------- ---------- ------------- --------
1065 20 19.49 00 HR 21 MIN 21
1082 20 18.57 01 HR 03 MIN 63
1279 19.3 18.59 00 HR 31 MIN 31
2075 19.3 15.32 03 HR 58 MIN 238

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I currently have a problem where I have two date fields with time stamps. The only bit i am currently interested in in these fields is the time factor. When i display them in their field they have a format of HH24:MI .

I have a start time and end time as well as a duration and duration type. What I am trying to do is the following: when the user inputs the start time, along with the duration say 1 for example and the duration type of say HRS for example I would like to have the end_datetime default to 1 HR from the current start time. This is the code I use on a when validate item trigger to acheive this:

case :blk.duration_type
when 'HRS' then
:blk.end_datetime := :blk.start_datetime + ((1/24)* :blk.duration);
when 'MINS' then
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However, every time it triggers the value put into end_datetime is 0:00 is it something to do with the datatypes im using .

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Jan 14, 2012

I have a field " Tran_date " with datatype Date . It contains date as well as time . How can I get the time . I tried with it as below :

SELECT TO_CHAR(TRAN_DATE,'DD-MON-YYYY HH24:MI:SS') FROM ABC
WHERE COMP=1 AND
BRANCH=1 AND
LOC_CODE='12' AND
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VALUE IS COMING LIKE THIS :
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ALTHOUGH THERE IS TIME . Its not zero .

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I have a query to add two numbers and get results in hours:minutes format.Example I want to add 12.20 and 6.15 and get result in hours and minutes like 18.35 (hours & minutes).if minutes that is after precision exceed more than 60 it should treat as 1 hour.like i want to add

12.35 (number 1) before precision its hour and after its minutes
06.25 (number 2)
04.25 (number 3)
-----
23.25 (23 hours and 25 minutes)
-----

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I want to find the hours and minutes between two char field data type.Example I have two char columns one is "start_time" and another one is "end_time".The start time and end time is the machine reading of CNC MACHINE in manufacturing.I want to develope the package to capture the actual machine running time.But I have the start and end time reading in character field.The machine reading format is hour:minutes:seconds only.It will looks like 1234:45:23(the machine ran 1234 hours and 45 minutes and 23 seconds).See the below table to understand my requirements.

start_time end_time result in hours & minutes
---------- -------- -------------------------
345 347 2 hrs
347 350 3 hrs
350 357.20 7 hrs and 20 minutes

If I subtract end_time - start_time I will get the result in char type only not in hours and minutes format.Another example

start_time end_time result in hours & minutes
---------- -------- -------------------------
357.21 360.40 3.19(If subtract end_time - start_time)

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