Find Queries Bases On Elapsed Time From Window Of 3 Months

Nov 19, 2012

how to find out queries bases on elapsed time from the window of 3 Months

DBA_HIST_SQLSTAT and DBA_HIST_SQLTEXT

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How To Get Total Elapsed Time Of Multiple Queries

May 7, 2013

I am executing below two SQL's at a time in a .sql file and I want the total execution time of these two queries:-

set timing on;
select 1 from dual;
select 2 from dual;

The output of the above sql file is returning the results like below which is expected:-

1
----------
1

Elapsed: 00:00:00.01

2
----------
2

Elapsed: 00:00:00.00

I want the total execution time of the two SQL queries at a time, I mean post execution of the two queries I want to know the total execution time, in this case is execution case will be 00:00:00.01.

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Sep 9, 2011

here we have an scenario where we want to find out all the sql statements that are executed in a particular time. The sql statements are executed via our application. I tried in awr report but it shows only the sql query which has taken long time to execute. and i even tried in V$session and V$sqlarea. how to view the executed sql statements in a particular session/current session

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Feb 6, 2013

Is there any oracle dictionary view which captures the queries being run by users on the database and time taken to execute those queries?We need to find out the OS user not the database user since we have to identify the users who are executing long running queries.We require this basically to monitor the long running queries on the database.

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Server Administration :: Elapsed Time In AWR Report?

Nov 7, 2011

I have an AWR report based on two snapshots one an one hour time window, under the "SQL ordered by Elapsed Time" section, there is a query having Elapsed Time = 7012 seconds, which is almost two hours, how is this possible? I have been told that this i aggregate value of all sessions.

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Performance Tuning :: SQL Ordered By Elapsed Time

Feb 2, 2013

Elapsed Time (s)CPU Time (s)Executions Elap per Exec (s) % Total DB TimeSQL IdSQL ModuleSQL Text

3,263 32 1 3263.49 2.79 3ta0ms19fvgds httpd.exe SELECT CASE WHEN COUNT >= 1...Elapsed
6,360 164 2 3180.17 5.44 51jx99dm0swv7 cpm_srvscript@ahcaxasmil1b (TNS V1-V3) SELECT /*+ CCL<PFT_GET_RP...

On AWR, I see two script that are out of ordinary, and I want to make sure that I interpret them correctly.

1) "Elap per Exec (s)" shows 3263.49 with 1 "Executions".
2) "Elap per Exec (s)" shows 3180.17 each execution with 2 "Executions".

Does this mean that this script ran for ~ 54 minutes (3263.49 / 60 seconds) for 1 "Execution" and ~ 53 minutes (3180.17 / 60 seconds) per each execution? I need to understand "Elapsed Time (s),CPU Time (s),Executions ,Elap per Exec (s), % Total DB Time" represent.

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May 5, 2011

why different elapsed time in Oracle9i and oracle10g for the same query ?

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Performance Tuning :: SQL Ordered By Elapsed Time And SQL Module?

Feb 24, 2013

Elapsed Time (s) CPU Time (s) Executions Elap per Exec (s) % Total DB Time SQL Id SQL Module SQL Text
2,423 1 3,919 0.62 1.83 gt49gg0fnc5x8 srv_dr@ahs (TNS V1-V3) UPDATE /*+ CCL<OENDB_FILE...
2,227 14 1 2227.16 1.68 bggfx8a04prj9 SQL*Plus select * from (select n.source...
.........

On [SQL ordered by Elapsed Time], [SQL Module] shows an indication that a SQL was executed by which process (i.e. srv_dr@ahs)outside of SQL*PLUS.If [SQL Modeule] shows as [SQL*Plus], does it mean the query was run in SQL*PLUS manually or directly?I have the SQL ID. How do I find out who, how, and exactly what time it was run?

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Performance Tuning :: Elapsed Time Not Accounted In Tkprof File

Jan 13, 2011

find the attached tkprof'ed file of session

I started the trace after the query started (upon user's complaint)

However even after tracing the session for more than 30 minutes I am not geeting where the 30 minutes are accounted in this file

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Performance Tuning :: Elapsed Time In Trace File Output

Nov 16, 2011

I executed a query which executed quickly (1.7 seconds) but since its output took time in displaying on the console the time shown by 'set timing on was 39.5 seconds

also I took trace (tkprof) for the same.My query is why the timings under 'Total Waited' (43.19 and 1.69) are not added to the elapsed time 1.83 seconds

call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.00 0.06 0 10 0 0
Fetch 758 0.03 1.77 0 0 0 11345
------- ------ -------- ---------- ---------- ---------- ---------- ----------
total 760 0.03 1.83 0 10 0 11345
[code]....

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Performance Tuning :: Why Elapsed Time Changed While Execution Plan And Stats Remains The Same

Jun 4, 2010

attached query giving consistent execution plan but different timings across run

SELECT /*+ INDEX (CRT CRT_CUN_FK_I)*/
DISTINCT odr.dve_id
FROM company_requirements crt, orders odr, lelo_products la_pct
WHERE crt.qtn_cun_id = 10035637--10000021--10035667
AND crt.ID = odr.crt_id_quote_implemented
AND NVL (odr.cancellation_date, '31-Dec-9999') = '31-Dec-9999'

[code]....

we have 4 databases, 2 on each servers, such that db1 and db2 on server1 and db3 and db4 on server2

refer count of the records for column of biggest table in the query, taken on all 4 databases (The column is nullable)

select count(*) from company_requirements crt WHERE crt.qtn_cun_id = 10035637
db1 = 73335
db2 = 89073
db3 = 81182
db4 = 82936

First I executed the query on db1 and db2 while there wasn't any user logged on to the system

db1
**********
call count cpu elapsed disk query current rows
------- ------ -------- ---------- ---------- ---------- ---------- ----------
Parse 1 0.06 0.08 0 0 0 0
Execute 1 0.00 0.00 0 0 0 0
Fetch 1 17.47 473.39 85704 1508102 0 0

[code]...

Elapsed times include waiting on following events:

Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 1 0.00 0.00
db file sequential read 85704 0.31 460.55
latch free 1 0.00 0.00
SQL*Net message from client 1 14.98 14.98

[code]...

Why the elasped time changed when data and plan hasn't changed at all? Also why the plan has different stats for round 1 and 2 on db1 and db2?

I ran it 2 times each round each database so hard parsing shall not be issue.Also why the number of rows accessed are different in db1,db2 and db3,db4 especially for step1 when count of crt.qtn_cun_id is similar?

In fact when the query was taking long I was the only user on the system Also I used hard coded value (no bind variables at all)

I checked num_rows, distinct keys as well which are quite similar across all 4 databases Also no stats where gather during the query execution

What I should have checked or monitored?

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PL/SQL :: To Find Months And Days Between 2?

Oct 9, 2013

 I want to find the months and days between 2 dates. For Eg. Date-1 : 25-Aug-2013Date-2 : 23-Oct-2013 If we consider every month as 30 days it should give 25-Aug-2013 to 30-Aug-2013 = 6 days 01-Sep-2013 to 30-Sep-2013 = 1 Month 23-Oct-2013 to 30-Oct-2013 =   8 days Total = 1 month and 14 days

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SQL & PL/SQL :: Loops - Find All IDs Who Take Tests Within Rolling Window Of 45 Days?

Mar 10, 2012

Main Aim : To find all those id's who have taken all the tests within a rolling window of 45 days.

I have a table "MBS_FIRST_DATE" with the following data :This table has the patients who have the test along with the first date..This table is derived such that it has only one record with the first date of the test irrespective of the test.

create table MBS_FIRST_DATE
(
medical_record_number VARCHAR2(600),
requested_test_name VARCHAR2(39),
result_date DATE

[code]..

Process :will be explaining with a patient id :
1) Consider the patient 1001274 from mbs_first_date table.
2) This patient has an date of July 08th 2008 & test SBP from first table. (keep this test an an anchor).
3) For the patient above loop through the all_recs table with test & result date ordered for the patient. (excluding SBP)
4) The first record we have is CHL with 08/05/2009 (May 8th 2009)..
5) Since this record is not within 45 days from SBP date for the patient..we go to the next record of SBP for the patient.
6) The next record for SBP is 11/05/2009 (May 11th 2009) .
7) Consider the CHL date again which is with 08/05/2009 (May 8th 2009)..
Since both are within 45 days ..store both the values keeping SBP date as an anchor date as it's the test that's having minimum date from table 1. Even though there is one more CHL date which is within 45 days from SBP we don't care about it.
9) Go to the next test for the same patient which is DBP..
10) The DBP first date is July 08th 2008..
11) Since it's not within 45 days from previously stored SBP date (11/05/2009) ignore the record.
12) GO to the next record which is 10/05/2009..as this is within 45 days from SBP & already CHL (stored date) is within 45 days..Grab all the 3 dates as all are within 45 days from anchor date (SBP date).

SO the o/p will be
1001274 SBP 11/05/2009
1001274 CHL 08/05/2009
1001274 DBP 10/05/2009

Code which I wrote :I know some where I am missing the loop

declare
V_ID1 VARCHAR2(200) := '';
V_TEST1 VARCHAR2(200) := '';
V_DATE1 DATE := NULL;

[code]...

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Nov 30, 2011

In my insert query, Window sort takes longer time i.e. 93% of total execution time, How do i reduce this time? are there any tuning parameters availabe for this?

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Find Sql Queries Run By Users Through Application?

Jul 10, 2012

We have a database version 10.2.0.3 and it is connecting through an application with a schema called HR_OR.

I am using the below query to get sql statements.

SQL> SELECT
2 SST.VALUE CPU, S.USERNAME, S.SID, S.SERIAL#, SQL_TEXT
3 FROM
4 V$SESSION S,
5 V$SQLTEXT_WITH_NEWLINES T,
6 V$SESSTAT SST
7 WHERE S.SQL_ID IS NOT NULL
8 AND S.SQL_ID = T.SQL_ID
9 AND SST.SID = S.SID
10 AND SST.STATISTIC# = (SELECT STATISTIC# FROM V$STATNAME SN WHERE SN.NAME = 'CPU used by this session')
11 ORDER BY 1 DESC, S.SID,T.PIECE;

It is showing same query for all users and I tried to run the quey from sqlpus,getting error [SP2-0552: Bind variable "xxxx" not declared]. So I hv confusion here.

1. How I can see the queries running by users though application.

2. get the exact query run by users and the same query I want to run from sqlplus.

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Mar 29, 2012

hint of which DBA views we need to query to find current running queries which are not using indexex?

I suppose v$session is one , what else we need to look to?

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Sep 14, 2010

I have upgraded oracle database from 9i to 11g using export and import utility. After migration we are facing performance issue in report generation, We have observed that First execution of report is taking very long time and when we generate the same report 2 -3 times there is considerable change in the execution time and it is more better than the first execution.

2 days back I have restarted the database and found the same issue. There are around 300 Reports and it is not possible to generate all the reports 2-3 times every time we restart the database.

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Aug 24, 2012

When working in MS Access, I can build parametric queries, where I can input the date field for example at run-time. How can I do something similar in SQL Oracle

Example

SELECT Sector.Date, Sector.RNC, Sector.Site, Sector.Cell,Sector.PSC
FROM Sector
WHERE Sector.Date=[Enter Date];

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Sep 1, 2011

How to find non-indexed queries and columns that require indexes?

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Nov 17, 2011

We have a big hierarchical query which is now running for a long time (around 6 hours. earlier it was running for 3 hours). We have to tune this query so that we run the jobs within a stipulated time frame.

The query below inserts around 42 million records in to the table WK_ACCT_WSTORE. I have attached in the text file.

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SQL & PL/SQL :: How To Find Time Offset For Given Time

Sep 23, 2010

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Converting MySQL Queries To Oracle Compatible Queries

Jan 23, 2007

our system has always been running on mysql database and recently we have switched to oracle. As the current system is coded using mysql query syntax, when i run this program using oracle database, i got a error. The language that I'm using is JSP.

this is the error message:

The following query could not run on oracle. To convert these mysql queries to oracle compatible queries.

SELECT productID,productName FROM products order by productName;

select newsID,newsDate,newsHeadLine1 from news order by newsDate Desc limit 3

SELECT fuji_products.productID, productName_Display FROM products,products_availability where products_availability.productID=products.productID and (product_status='enabled' or product_status='all') AND category='12'

SELECT catID, catSub1 from category where catSub = '"+ prodCat +"' AND catSub1 is not null group by catSub1 order by catSub1

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Jan 2, 2013

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Mar 28, 2012

I wanted to calculate the time variance dynamically as below.I have one table called process_status where we can see the process name, start time, end time and the status .

1. Now i wants to calculate the duration(end_time - start_time) in hh:mi:ss format and i got the output using below query.

select name, start_time, end_time, status, to_char(trunc(sysdate) + (end_time - start_time), 'HH24:MI:SS') duration from process_status ;

I got currect oupput but i am stuggling with the below step.

2). Actually the process expectaiotn time is 2 hours only(fixed time). Now i wants to calculate variance b/w expected time and the duration time(end_time - start_time)

i.e variance = expected_time - (end_time - start_time ) ;
here expected time is 02:00:00(fixed).

I tried using with to_char and to_date function but no luck.

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Jul 4, 2011

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Dec 18, 2012

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Is any other way to find out locks on particular date and time using data dictionary?

For example, we have to find whether TT_objects occured the lock or not on ON yesterday.

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SQL & PL/SQL :: Query To Find The Time Difference

Aug 21, 2010

I need to query a table to get the time difference based on different dates.

SAMPLE DATA:

JOB ID start_time end_time
1 201008190056 19/08/2010 01:23:12
2 201008190123 19/08/2010 01:50:12
2 201008200045 19/08/2010 01:50:12
3 201008070345 7/08/2010 04:50:12
3 201008070345 7/08/2010 04:50:12
1 201008070003 7/08/2010 00:30:12

in the above, for job 1 ,on 19/08/2010 the time difference should be calculated as

01:23:12-00:56:00 and the difference should be in minutes.

for end_time. i can't take the substring as the length of the date varies for 19 and 7. In case of start date, the time has to be in format, hh:mm:ss, to calculate the difference.

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Jun 20, 2013

How to find date and time of a column in table ?

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Oct 20, 2010

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Jun 25, 2013

Version: 11.2 I am not an SQL expert. I am trying to subtract the start time and end time and thereby find the difference between these two times. In the below example , the difference between start_time and end_time is around 52 minutes (6:15 PM to 7:07 PM)I tried some stuff to find the difference below. But it didn't work out .  

SQL> create table t (start_time date, end_time date); Table created. SQL> desc t Name Null?    Type ----------------------------------------------------------------- -------- --------------------- START_TIME  DATE END_TIME DATE SQL> insert into t values (to_date('24/JUN/2013 18:15:42', 'DD/MON/YYYY HH24:MI:SS'), to_date('24/JUN/2013 19:07:54','DD/MON/YYYY HH24:MI:SS')); 1 row created. SQL> commit; Commit complete. SQL>SQL>SQL> select * from t; START_TIME               END_TIME--------------------     --------------------24 Jun 2013 18:15:42    

[Code] .......

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