What is the difference between thread and task

hi ,this is guruvulu bojja
what is the diff between thread and task .
can u give me the example for distinguish a thread and a task .
How can i know thread is better than a task .
please tell me what is the task in o/s level and task.
how the o/s distinguish a therad and task.

Hi Guruvulu,
Threads enhance performance and functionality by allowing a program to efficiently perform multiple tasks simultaneously.
In the case of common memory threads naturally have shared data regions while it has to be specially created and initialized for tasks.
Simply put, a thread is a program's path of execution. It allows execution of two or more sections of a program at the same time.
Regards,
Pooja.

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What is the difference between start() and run()

Hi:
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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
and if i call _server.run() explicitly in my code, that while loop will be in execution
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thnx

what is the difference between start() and the
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run() is a method in the object that the thread executes.
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What's the difference between SNC and SRM?

we will sell SNC in Q2.But i don't know what is the difference between SNC and SRM.
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good regards kenji

Hi Kenji,
SRM is more of Supplier Identification and SNC work of building
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What are the differences between Logos and LogosXT?

What are the differences between Logos and LogosXT?

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What is the difference between tkprof and explainplan

Hi,
what is the difference between tkprof and explainplan.

Execution Plans and the EXPLAIN PLAN Statement
Before the database server can execute a SQL statement, Oracle must first parse the statement and develop an execution plan. The execution plan is a task list of sorts that decomposes a potentially complex SQL operation into a series of basic data access operations. For example, a query against the dept table might have an execution plan that consists of an index lookup on the deptno index, followed by a table access by ROWID.
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STATEMENT_ID VARCHAR2(30)
TIMESTAMP DATE
REMARKS VARCHAR2(80)
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OBJECT_OWNER VARCHAR2(30)
OBJECT_NAME VARCHAR2(30)
OBJECT_INSTANCE NUMBER(38)
OBJECT_TYPE VARCHAR2(30)
OPTIMIZER VARCHAR2(255)
SEARCH_COLUMNS NUMBER
ID NUMBER(38)
PARENT_ID NUMBER(38)
POSITION NUMBER(38)
COST NUMBER(38)
CARDINALITY NUMBER(38)
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OTHER_TAG VARCHAR2(255)
PARTITION_START VARCHAR2(255)
PARTITION_STOP VARCHAR2(255)
PARTITION_ID NUMBER(38)
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Trace Files and the TKPROF Utility
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What is the difference between cumulative and non cumulative keyfigures?

Hi Friends
What is the difference between cumulative and non cumulative keyfigures, when we r using the cumulative and non cumulative
Regards
Ravindra

Hi Ravindra,
Have a look at the help:
http://help.sap.com/saphelp_nw2004s/helpdata/en/8f/da1640dc88e769e10000000a155106/frameset.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/80/1a62f8e07211d2acb80000e829fbfe/frameset.htm
Go through these.
Re: Types of non-cumulative keyfigures
http://help.sap.com/saphelp_nw2004s/helpdata/en/8f/da1640dc88e769e10000000a155106/content.htm
See the following threads
non-cumulatives KF in reporting
Re: use of non cumulative keyfigure
Re: When do we use Non-Cumulative values?
Key figures:
1. Cumulative Vaules
2. Non Cumulative Values
Cumulative Values:
Cumulative Values are Keyfigures for which Keyfigure Values are must posted in every time unit that reported on (= time period specific Values).
Example:
Revenue
Non Cumulative Values:
Non Cumulative Values are Keyfigures for which KeyFigures are only evaluated for selected time Periods.
Cumulative Keyfigures With Exception Aggregation:
It's a 'normal' KF (with summation, min or max as aggregation behaviour), but you set some exception in this behaviour...for example, you can say that a KF, normally aggregated by 'summation', have to show the max value (or the average, or '0' or something else), that is the 'exception aggregation' when you use it in combination with 0DOC_DATE (or other char), that is the 'exception aggregation char reference'...in this case OLAP processor give to you the possibility to see your KF with different behaviour depending from you use 0DOC_DATE (in our example, MAX) or something else (SUMMATION).
Non Cumulative keyfigure with Associated Single Delta:
If you have a stock KF that is fed from only one (other) movement KF that can assume positive and negative sign.
KF1 (initial) STOCK (non-***.) = 100
KF2 flow = -30
KF2 flow = 70
KF1 (final) STOCK (non-***.) = 140
Non-cumulative key figure with associated in and outflow:
This is the case of 2LIS_03_BF KF stocks fields.
Here, we have the same situation in point 2, but you will have not only ONE flow KF, but TWO, one dedicated to in and another one dedicated to out !
You have to use this scenario if you have no KF that have positive and negative sign, but two KFs each one representing positive (in) and negative (out) logical sign!
KF1 (initial) STOCK (non-***.) = 100
KF2 (out))flow = 30
KF3 (in)flow = 70
KF1 (final) STOCK (non-***.) = 140
Website Addresses For Non Cumulative KeyFigures:
http://help.sap.com/saphelp_nw04/helpdata/en/80/1a62dee07211d2acb80000e829fbfe/frameset.html
http://help.sap.com/saphelp_nw04/helpdata/en/82/f2dc37f0f12313e10000009b38f8cf/content.html
http://help.sap.com/saphelp_bw31/helpdata/en/82/f2dc37f0f12313e10000009b38f8cf/content.html
http://help.sap.com/saphelp_erp2004/helpdata/en/d2/e0173f5ff48443e10000000a114084/content.html
Re: Non-Cumulative keyfigure example
Re: Types of non-cumulative keyfigures
/community [original link is broken]
http://help.sap.com/saphelp_bw32/helpdata/en/80/1a62dee07211d2acb80000e829fbfe/frameset.html
/community [original link is broken]?forumID=131&threadID=29557&messageID=273049
/community [original link is broken]?forumID=131&threadID=111914&messageID=1248243
Check this very useful docu.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/93ed1695-0501-0010-b7a9-d4cc4ef26d31
****Assign Points If Helpful****
Regards,
Ravikanth

What is the difference between action and workflow? How do I decide that I need an action in a transaction and not a workflow and vice versa?

Dear Experts,
I have few doubts and request your expert inputs to clarify my doubts.
What is the difference between action and workflow? How do I decide that I need an action in a transaction and not a workflow and vice versa?
Your earliest response is highly appreciated.
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SMTP

Hi SMTP,
First of all, as I mentioned action is nothing but an executable work item which is designed in the workflow itself. In other words, Workflow is like your OOPS class. At run time, workflow instances are created just like objects of classes. Now, the steps designed in the workflow are called TASKS and the instances of tasks are called WORKITEMS. Now, the work items where any user action is required are called executable work items. ANd the work items where no user action is required (for example, sending an email in background) are called non-executable work items.
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Why use SAP Workflow? | Insight Consulting Partners
Regards,
Richa

What is the difference between netbeans and JDK ?

What is the difference between netbeans and JDK ?
This is because i got netbeans 5.5 ide and nothing else and still i ran some hello world programs successfully. . ..
i am confused - - does jdk come combined with netbeans ?

What is the difference between netbeans and JDK ?
This is because i got netbeans 5.5 ide and nothing
else and still i ran some hello world programs
successfully. . ..
i am confused - - does jdk come combined with
netbeans ?JDK is Java Development Kit. It includes all the Java APIs and Java tools like compiler etc so that you can develop code in Java language.
NetBeans is an IDE (Integrated Development Environment). It provides you tools for helping you write Java code, like it provides you a text editor where you can type your java code etc. You can use any other IDE like Eclipse JCreator etc for writing java code.
NetBeans should come packaged with a JDK. NetBeans requires JDK to function but JDK does not require NetBeans to function.
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hi ,
Please tell me what is the difference between stringBuilder and stringBuffer classes ..why stringbuffer classes is used more with multiple threads but not stringBuilder which is faster than stringBuffer objects
Thanks in advance

Odd. You answer your own question by paraphrasing the first paragraph of
StringBuilder's javadoc:
This class provides an API compatible with StringBuffer, but with no guarantee
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Do you really have a question?

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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)
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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

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hi all
if i have these queries
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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.
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TABLE_NAME
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TABLE_NAME
FOO
1 row selected.
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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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1)Now I use Lightrom 5.7 how to upgrade to 6 or CC?
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What's the difference between thunderbolt and mini displayport?

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