Difference between timestamps and then an avg of all

ok I have 3 columns
ID, callstart, callend
in the callsession table
and I need to take the difference of the timestamps in callstart and callend in the form: 'mm/dd/yyyy hh:mi:ss AM' and at the bottom of the sheet I want to take an average and a total of all time differences.
some of the calls are in PM so I don't know how I should proceed.
please help if possible( i don't have permission to create views or tables...read-only access)

Try:
COMP AVG LABEL 'AVG Time' OF time_diff ON REPORT
BREAK ON REPORT
Select ID, callstart, callend, (callend-callstart) time_diff
From callsession;

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What is the difference between timestanp and vtimestamp?

Some script uses variable "timestamp" , and some uses "vtimestamp".
I can't understand exact difference between timestamp and vtimestamp,
though I found description as follows.
timestamp
The current value of a nanosecond timestamp counter. This counter
increments from an arbitrary point in the past and should only be
used for relative computations.
vtimestamp
The current value of a nanosecond timestamp counter that is virtualized
to the amount of time that the current thread has been running on a CPU,
minus the time spent in DTrace predicates and actions. This counter
increments from an arbitrary point in the past and should only be used
for relative time computations.
Would you explain the difference?
Thank you.

"timestamp" evaluates to the current value of a system-global 64-bit nanosecond counter, available (and documented) in gethrtime(3C) from C programs. Values of "timestamp" from different threads can be directly compared.
"vtimestamp" is a 64-bit thread-local nanosecond counter which counts time the thread has spent on-CPU, excluding time spent processing dtrace probes and actions. (It is similar to gethrvtime(3C), but not identical to it -- gethrvtime(3C) includes dtrace processing time). The only operation on vtimestamp values which gives a meaningful result is subtracting two values from the same thread to get "time spent on-CPU" between two probe points for that thread.
(at the moment, vtimestamp will include time spent doing high-level interrupt processing while the thread is on-CPU. In the future, that will probably be corrected.)

Differences between R11 and R12

Hello
We are looking for a document/whitepaper outlining the differences between R11 and R12 focussing on Financials, OM, PO and EAM.
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Sanjib

Sanjib,
I guess this has been discussed earlier in forums.
http://forums.oracle.com/forums/search.jspa?threadID=&q=Differences+between+11i+and+R12&objID=c84&dateRange=all&numResults=30
You should get the info you needed from these posts.
Regards.
Edited by: Bobcatalog on Nov 14, 2008 2:29 PM

Difference between systimestamp and a column of timestamp

Hi ,
I want to get the minutes difference between systimestamp and a column which has value of certain timestamp
Table1
InsertTmstmp --> 03-FEB-10 01.43.07.865272000 AM
now how can I get the difference in minutes between systimestamp - InsertTmstmp ?
I tried the following
select EXTRACT(minute FROM systimestamp - InsertTmstmp ) from table1 where seq_id = '9';
but this was not giving proper results .
For example if InsertTmstmp --> 03-FEB-10 01.43.07.865272000 AM
and systimestamp is 03-FEB-10 02.03.15.678084000 AM GMT-07:00. then the select query is returning 50.
and when I query
select systimestamp - InsertTmstmp from table1 ,, this is not returning any value . ( i saw in some sites this query returning values ).
Thanks in advance

May be like this?
with t
as
select systimestamp - (systimestamp-1) dt from dual
select dt,
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from t

What is the difference between tkprof and explainplan

Hi,
what is the difference between tkprof and explainplan.

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OBJECT_NAME VARCHAR2(30)
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OBJECT_TYPE VARCHAR2(30)
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BYTES NUMBER(38)
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TKPROF is a program that you invoke at the operating system command prompt in order to reformat the trace file into a format that is much easier to comprehend. Each SQL statement is displayed in the report, along with counts of how many times it was parsed, executed, and fetched. CPU time, elapsed time, logical reads, physical reads, and rows processed are also reported, along with information about recursion level and misses in the library cache. TKPROF can also optionally include the execution plan for each SQL statement in the report, along with counts of how many rows were processed at each step of the execution plan.
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Hi,
I am trying to figure out the difference between abstraction and encapsulation but confused.
Both are used for data hiding then what is the exact difference ?
Thanks.

Tushar-Patel wrote:
I am trying to figure out the difference between abstraction and encapsulation but confused.
Both are used for data hiding then what is the exact difference ?This is the picture I have:
When you encapsulate something you get an inside and an outside. The outside is the abstraction. It describes how the encapsulated entity behaves viewed from the outside. This is also called the type. Hidden inside is the implementation. It holds detail information about how the type's behaviour is accomplished.
It's a very simplified picture but I think it's quite accurate and it works for me.

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Hi all,
I dont understand the actual difference between Iterator and Collection Wrapper. I observed both are used for the same purpose. Could any one please let me know when to use Collection Wrapper and when to use Iterator??
Thanks,
Chinnu.

L_Kiryl is right.
Collections support global iteration (through collection->get_next( )) and local iteration (through iterator->get_next( )).
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Can Oracle be forced to use the spatial index for sdo_filter in combination with an or clause? Difference between Enterprise and SE?

We’re seeing the following issue: sql - Can Oracle be forced to use the spatial index for sdo_filter in combination with an or clause? - Stack Overflow (posted by a colleague of mine) and are curious to know if this behaviour is due to a difference between standard and enterprise, or could we doing something else wrong in our DB config.?
We have also reproduced the issue on the following stacks:
Oracle SE One 11.2.0.3 (with Spatial enabled)
Redhat Linux 2.6.32-358.6.2.el6.x86_64 #1 SMP Thu May 16 20:59:36 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
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Microsoft Windows Server 2003R2 Standard x64 Edition
However, the SQL works fine if we try it on Oracle 11.2.0.3.0 *Enterprise* Edition.
Any help or advice would be much appreciated.
Kindest Regards,
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In my experience sdo_filter ALWAYS uses the spatial index, so that's not the problem. Since you did not provide the explain plans, we can't say for sure but I think yhu is right: Standard Edition can't use the bitmap operations, and thus it'll take longer to combine the results of the two queries (because the optimizer will surely split this OR up in two parts, then combine them).
BTW: when asking questions about queries here, it would be nice if you posted the queries here as well, so that we do not have to check another website in order to see what you are doing. Plus it will probably get you more answers, because not everyone can be bothered to click on that link. It would also have been nice if you had posted your own answer on the other post here as well, because my recommendation would have been to use union all - but since you already found that out for yourself my recommendation would have been a little late.

What is the difference between #variable_name and :variable_name?

Hi!
What is the difference between #variable_name and :variable_name?
I have found that if we use alphanumeric variable then :variable_name return value in quotes but #variable_name without quotes.
Why it does not work in the same way for variable default values when variable is used in filter? (It works in mapping)
I use variable in filter like T.OUT_DATE>convert(datetime,:LAST_UPDATE_DATE,121)
When I use my variable in package and do refresh it works fine. But when I try to execute the same interface with variable default value I get error. Seems that variable name has been not changed to the value. It does not work with default value in quotes neither without quotes.
Any ideas how to solve that?
Thank you in advance!
Edited by: user13278245 on Sep 15, 2010 4:34 AM

Question is how to make it work with default value, when I execute interface standalone, not in package? And why it works in mapping but not in filter?
+ I have found that it works if source is Oracle. It doesn't work only for MS SQL source.
Edited by: user13278245 on Sep 15, 2010 6:43 AM

What is the difference between Oracle and MySQL

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I am having a hard time to find out best linux distro for installing Oracle11g, so i am planning to switch to MySQL. Please help, Thanks in advance.

Oracle_Walker wrote:
Hi,
<snip>>
I am having a hard time to find out best linux distro for installing Oracle11g, Then you must be "looking for love in all the wrong places."
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so i am planning to switch to MySQL. Please help, Thanks in advance.

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I am actually an audio guy, but I would like an answer on something.
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Thanks in advance for any information.

gazo wrote:
The vid guy has sent me some files to work with. So I am working in Final Cut to edit some of the video, and then sending it back to him. He is working on PC with Avid. What is the best. Should I convert the avi files he has sent to me to mov files. Then pull these into FCP, and then export it out as avi for him. Or should I export out as mov, and then he converts them to avi when he pulls it into Avid on his PC? Very confusing which is the best procedure between Mac and PC.
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This is a disaster in the making. You can avoid being part of the train wreck by either renting an Avid, going to live at his house, or telling him to get a Macintosh.
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bogiesan

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Hi:
what is the difference between start() and the run()???
in my app, i have
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_server = new Server( this );
_server.start();
_server extends Thread..
why everytime i use server.start(); my app will terminate on it is own, even though in my servr.run() method, i have a while loop
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can someone let me know??
thnx

what is the difference between start() and the
run()???start() is a method on Thread that tells it to start.
run() is a method in the object that the thread executes.
why everytime i use _server.start(); my app will
terminate on it is own, Err.... I'm not convinced this is true. It'll throw an IllegalThreadStateException, if you try to restart an existing thread.
If that's what you're saying.
even though in my _servr.run()
method, i have a while loopI don't see the connection. Are you saying that the while loop never terminates, and you don't see why the thread is terminating?
and if i call _server.run() explicitly in my code,
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What is the difference between exists and in

hi all
if i have these queries
1- select ename from emp where ename in ( select ename from emp where empno=10)
and
2- select ename from emp where exists ( select ename from emp where empno=10)
what is the difference between exists and in is that only when i use in i have to bring the field name or what.... i mean in a complex SQL queries is it will give the same answer
Thanks

You get two entirely different result sets that may be the same. Haah! What do I mean by that.
SQL> select table_name from user_tables;
TABLE_NAME
BAR
FOO
2 rows selected.
SQL> select table_name from user_tables where table_name in (select table_name from user_tables where table_name = 'FOO');
TABLE_NAME
FOO
1 row selected.
SQL> select table_name from user_tables where exists(select table_name from user_tables where table_name = 'FOO');
TABLE_NAME
BAR
FOO
2 rows selected.So, why is this? the WHERE EXISTS means 'if the next is true', much like where 1=1 being always true and 1=2 being always false. In this case, where exists could be TRUE or FALSE, depending on the subquery.
WHERE EXISTS can be useful for something like testing if we have data, without actually having to return columns.
So, if you want to see if an employee exists you might say
SELECT 1 FROM DUAL WHERE EXISTS( select * from emp where empid = 10);
If there is a row in emp for empid=10, then you get back 1 from dual;
This is what I call an 'optimistic' lookup because the WHERE EXISTS ends as soon as there is a hit. It does not care how many - only that at least one exists. It is optimistic because it will continue processing the table lookup until either it hits or reaches the end of the table - for a non-indexed query.

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Hello everybody,
I am absolutely a beginner in working with Captivate and furthermore my technological know how is not that good.
So, I have problems to understand if the export formats SWF and F4V are both capable to be published in the Internet as streaming video and as progressive Download? Well so, I do not really understand the difference between streaming and progessive download either?
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I would be very thankful for some helping information!
Greetings,
Mareike the beginner

Welcome to our community
I'm not certain I fully understand the differences myself, but will toss out what I believe to be true about the formats. Hopefully, if I'm incorrect in my bellief, someone with more definitive knowledge will chime in.
It was explained to me a couple of years back and is my understanding that "streaming" only applies to a video based format such as F4V, FLV and it doesn't apply to SWF. With SWF, you may specify a preload value. So when the SWF transmits from the web server to the PC, a certain percentage has to be received before play begins. But that's not streaming. It's preloading.
For streaming to occur, the web server establishes a communication channel between the server and the destination PC. This channel is monitored to see what speed is in use. Only enough information is then transmitted to be comfortable at that speed. If the speed improves during the connection, the server serves data at a faster rate. If the connection degrades, the information transmitted is also scaled back so as to accommodate the lower speed.
With SWF, after it has all been downloaded, a savvy user is able to poke around in their temporary internet files and save the SWF for play later. With streaming, this isn't possible because as the stream is viewed, it evaporates from memory.
Seriously hoping others will chime in here to confirm or deny this.
Cheers... Rick
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Difference between Implicit and Explicit Cursors

Hi All,
Can you just tell me what is the difference between implicit and explicit cursor?
Thanks,
Padma

Hi ,
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c1%found,c1% not found ,c1%open
Thank you.

Difference between timestamps and then an avg of all

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