How do I calculate hours?

Hi,
I allow the user to enter a start time of "0200AM" and an end time of "0330AM". How do I calculate the hours? I tried calendar hours, but I wasn't quite sure how it worked.
Thanks

you use the Calendar.set() method to set the specific hour/minutue/am/pm, see the docs for details. then you can do a getTime() which returns a Date object for further manipulation.
thomas

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How do I calculate hours in Numbers?

How do I calculate hours in Numbers? Example: I inserts 7:00 in a cell and 11:30 in another cell. What function do I write to get 4:30?

Hi Interlaga,
Enter start time in A2. Enter finish time in B2. They will become Cell > Data Format > Automatic with Date and Time (Date None).
Formula in C2
=B2−A2
That becomes Cell > Data Format >Automatic
Refinement is to use 'Date and Time' Format for start and finish, and 'Duration' format for the difference.
Remember that in Numbers, every Date has a Time attached, and every Time has a Date attached (even if they are not displayed in the cell). So if you enter the times on different days (the 'crossing midnight' problem) the finish time will be 24 hours later .
It took me a while to understand this, but a Time or a Date is an instant since 1 January 1904.
Call back for more help.
Regards,
Ian.

How to calculate hours between two dateTime node in BPEL.

In my BPEL there's a requirement need calculate hours between two dateTime type..
I tried 2 solutions, both of them failed:
1. use xslt calculate duration(xml type, like PT12H) between two dateTime, and then use embedded java code to get the hours.. The problem is : I need to parse the xml duration format...(like this real one: -P80DT17H47M36S....), and to parse it in java , maybe have the same problem with solution 2..
* [Subtracting 2 dateTime values into a duration using XPath 2.0|http://blogs.oracle.com/rammenon/2007/07/subtracting_2_datetime_values.html]
2. use embed java code, but it seems we can't use some class in embedded java code:
my code(input begin, end both dateTime in xml. output: diff, int in xml):
1 System.out.println("\n\nTimeTestBegin");
2 String begin=getVariableData("begin").toString();
3 String end=getVariableData("end").toString();
4 System.out.println(begin+"-----"+end);
5 //Class c1=Class.forName("javax.xml.datatype.XMLGregorianCalendar");
6 //Class c2=Class.forName("javax.xml.datatype.DatatypeFactory");
7 //System.out.println(c1.getName());
8 //System.out.println(c2.getName());
9 javax.xml.datatype.XMLGregorianCalendar beginTime = javax.xml.datatype.DatatypeFactory.newInstance().newXMLGregorianCalendar(begin);
10 javax.xml.datatype.XMLGregorianCalendar endTime = javax.xml.datatype.DatatypeFactory.newInstance().newXMLGregorianCalendar(end);
11 long diff=beginTime.toGregorianCalendar().getTimeInMillis()-endTime.toGregorianCalendar().getTimeInMillis();
12 setVariableData("diff",String.valueOf(diff/1000/3600));
13 System.out.println("DIFF======"+diff/1000/3600);
14 System.out.println("TimeTestEnd");
it's said can't compile java class, but can't find the detail error, I think the problem is how to import java class to embedded java code activity(use full package name like above code don't work), when I remove line 9-13, no compile error..
BTY: Jdeveloper is a IDE support java, but why the embedded java activity's edit window only have a simple "java code" editor, too simple that it can only edit you code snippet...
3.There's another sulotion: extend BPEL xpath functions(add a new function), but in my project, modify BPEL server(soa server)'s config file is not allowed..
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Thanks.

Hi, All,
I found the cause. Sorry, it's my mistake..
below line have a DatatypeConfigurationException:
javax.xml.datatype.DatatypeFactory.newInstance()
When I test my java code snippet, I coped the code snippet to one of my java class in eclipse, and put it in a method to check if there's compile error, but I didn't notice there's a "throws Exception"...
the final java code snippet for test is :
input: begin dateTime
input: end dateTime
output: diff int, how many hours in (begin-end)
try{
System.out.println("\n\nTimeTestBegin");
String begin=getVariableData("begin").toString();
String end=getVariableData("end").toString();
System.out.println(begin+"-----"+end);
javax.xml.datatype.XMLGregorianCalendar beginTime = javax.xml.datatype.DatatypeFactory.newInstance().newXMLGregorianCalendar(begin);
javax.xml.datatype.XMLGregorianCalendar endTime = javax.xml.datatype.DatatypeFactory.newInstance().newXMLGregorianCalendar(end);
long diff=beginTime.toGregorianCalendar().getTimeInMillis()-endTime.toGregorianCalendar().getTimeInMillis();
setVariableData("diff",String.valueOf(diff/1000/3600));
System.out.println("DIFF======"+diff/1000/3600);
System.out.println("TimeTestEnd");
}catch(Exception e){
e.printStackTrace();
}

How can i calculate overtime hours with PCR?

hi all,
i was wandering, can i calculate overtime hours in this case?
example my DWS for this day is 08.00 - 16.00
i do early overtime from 06.00 - 08.00, and after my working hours is finished, i do late overtime from 16.00 - 19.00
(in TIP it is separated in 2 rows)
how can i calculate my total overtime with pcr? i want to use the total for another calculation..
06.00 - 08.00 : 2 hours
16.00 - 19.00 : 3 hours
+
        total      : 5 hours.
thx all..

ZPRN    DVARSTPRSNT
N      COLOP*
Y     DOUTTPORIGS
Y E HRS=0     HRS=PNUM ADDDB9066 COLOP*
Y * COLOP*
THE ZPRN PCR WILL GET THE TOTAL NUMBER WORKING HRS IN TIME TYPE 9066
Now we will write a pcr to get overtime details
      DVARSTDPRCL
*    DVARSTHOLCL
* 1 D HRS=D9066 HRS-S HRS?0
* 1 * ADDDB9067
* 1 < COLOP*
0 *
NOW THIS PCR WILL BRING THE OVERTIME
BASED ON YOUR DAILY WORK SCHEDULES U NEED TO CHANGE VARSTDPRCL NOW MY RULES WILL WORK FOR ALL THE SHIFTS OTHER THAN WEEKLY OFFS
REGARDS,
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How do I calculate a time such as work hours

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This may help:
The first row is a header.
select the three columns and format as "Duration":
now enter the formulas as:
B2=IFERROR(IF(A2>DURATION(0, 0, 8), DURATION(0, 0, 8), DURATION(0, 0, 0)), "")
C2=IFERROR(A2-B2, "")
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How can i calculate tempsize and logdir size ?

Hello:
I have one database on a primary server and its replica on a replica server.
Since one week to now, Mexican Exchange have had a considerable growth on transactions.
My database works in line, every night all data is cleaned waiting for new data on next day.
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Regards.

I think that approaching this from the perspective of increasing temporary space and log space is not the best way.
Firstly, there are better ways to delete all rows from a table instead of using delete...
1. For regular tables (ones that are not part of a cache group) you can use TRUNCATE TABLE ... This operation is replicated but the voilume of replicated data is vastly smaller than if you delete all rows individually. Also, it should take a lot less Temp space on both the source and target system.
2. For cache tables, you could use UNLOAD CACHE GROUP ... This is similar to TRUNCATE but for cache tables. Again, this operation is replicated. Note that if you are using AWT or SWT cache groups and you DELETE in TimesTen then the data is also deleted from Oracle... is that wjhat is desired?
If you have to use DELETE then it is very important that you delete the rows in small batches rather than as one huge transaction. Trying to replicate a delete of 3M rows will cause huge problems for replication. A much better solution is to delete in smaller batches using some application logic as follows:
loop:
commit;
DELETE FIRST 1000 FROM sometable;
If rowcount > 0 then goto loop;
commit;
This approach has 5 benefits:
1. Much less Temp space will be needed.
2. Replication will be able to process the delets as they occur rather than waiting until all 3M rows have been deleted and then trying to tepliate a single transaction of 3M deletes. This will greatly improve replication performance and also prevent excessive log file buildup.
3. Checkpointing will be able to purge log files as the delete progresses rather than having to wait until all rowsw have been deleted. This will prevent excessive log file buildup.
4. The overall time required will be much reduced compared to deleting all rows in a single delete.
You should not stop replication while the delete s are being done as this just causes log file accumulation.
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If you adopt my suggestions above then you can avoid these issues and also complete the cleanup of data in a shorter time.
Chris

How do I calculate the total size of selected folders?

Hello
My question is:
How do I calculate the total size of selected folders?
Thank you

It does show the aggregate size.
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Thanks & Regards,
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Hi,
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Hi,
I want to know that
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Actually I just want to calculate number of live instances in a program at any time...
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Dear Members,
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Calculate? Calculate for wirespeed/line-rate? If the latter, take all the port bandwidths, and assuming they are duplex, double for necessary fabric bandwidth. I.e. 48 gig ports would need a 96 Gbps fabric. Take all your port bandwidths, and allow 1.448 Mpps per gig (for minimum size Ethernet packets), i.e. 48 gig ports would need 69.5 Mpps. Once you have required fabric bandwidth and PPS, you can compare to vendor's specs.

How can I calculate which is the index (x-value) correspondant to a certain value of a signal?

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Solved!
Go to Solution.
Attachments:
quality.jpg ‏6 KB

If you know the lineshape (e.g. Lorentzian), you can use nonlinear fit. This will give you the most accurate value.
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Attachments:
WidthAtHalfHeight.png ‏52 KB

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Hello,
How can I calculate the total consume time in each request ?
For example, I want to start calculating the time when I click on a Link or a button and the end time when it completed load the page !
Eric

You could use a filter like this one:
import java.io.*;
import java.net.*;
import java.util.*;
import java.text.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
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How can I calculate the value of the cell, which depends on other rows?

Hi, all!
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How do I calculate hours?

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