Difference between size and length of a node

Dear All ,
Can anybody please let meknow what is the difference between size and length of a node in webdynpro java
what is the code for finding a node that how many attributes it is holding in runtime
Thanks in advance.

Dear Krishnakk
You can call the SIZE() method of the NODES and LENGTH() method on ATTRIBUTES.
Like if you have node Employee and Employee_ID and Employee_Name are attibute under it. suppose you have already populated the node employee.
***what is the code for finding a node that how many attributes it is holding in runtime
You have to identified the which node will be called based on the user actions;
You can fin the size of the node to identify number of the rows holding at runtime. loop through for to find the attributes
IWDMessageManager messageManager = wdComponentAPI.getMessageManager();
if(wdContext.nodeEmployee.size() > 0)
         //Print Node size
         messageManager.reportSuccess("Size of the Node ::"+wdContext.nodeEmployee.size() );
         for(int i=0; i<wdContext.nodeEmployee.size(); i++
                 //Print Length of the Attributes Employee ID and Name
                 messageManager.reportSuccess("Length of the Employee Name ::"+wdContext.nodeEmployee().getEmployeeElementAt(i).getEmployee_ID().length());
                 messageManager.reportSuccess("Length of the Employee ID ::"+wdContext.nodeEmployee().getEmployeeElementAt(i).getEmployee_Name().length());
Hope it will helps
Best Regards
Arun Jaiswal

Similar Messages

Looking for new laptop what are the differences between pro and air? Besides size. Does the air preform like the pro?

Looking for new laptop what are the differences between pro and air? Besides size. Does the air preform like the pro?

The NEW macbook Pro and Air are EXTREMELY close in form factor
The newest macbook Pro is essentially a larger macbook Air with Retina display and options for speed in increasing prices up to an independent graphics and quad core processor.
both Air and new Pro now have PCIe SSD and permanent RAM.
The Air is the lightweight portable form factor, fast to boot and shut down, but with longer battery life than any of the macbook pro in 13"
Now the new macbook Pro and macbook Air are extremely close in form factor and nature.
both have 802ac wifi
both have permanent RAM, no superdrive
both are slim profiles and SSD
The only real differences now are (in the most expensive Pros) faster processors and quadcore processors and top end model autonomous graphics.
....and of course the retina display
both are now "very good for travel"
Other than features the form factor of the Air and Pro are VERY close now,....so now its merely a matter of features and price more than anything.
You need an external HD regardless of what you get for backups etc. Drop into an Apple store and handle both and make your choice based on features, such as Retina or non-retina, .... both at a distance now look like the same computer.
The Pro weighs more, ....but nowhere near what it used to just a month ago on the older macbook Pros
The NEW macbook Pro is a different creature entirely than the older macbook Pro, .....the new Pro is thicker than the Air, but id frankly call the NEWEST Pro a "macbook Air with Retina display" , or
Maybe a “macbook Air PRO with Retina display”
Instead of Air VS Pro now,.....its really a smooth transition from Air to pro without comparing say, 2 different creatures, now its like contrasting a horse from a race horse.
Either one in 8gig of RAM (preferably)... the 4gig upgrade costs very little, the I7 you will notice only 15% faster on heavy applications over the I5, and NOTHING on most APPS.....I5 has longer battery life.
As you see below, the non-Retina 13" AIR is 82% of the Macbook with Retina display in resolution
there is no magical number of pixels per inch that automatically equates to Retina quality.
http://www.cultofmac.com/168509/why-you-might-be-disappointed-by-the-resolution- of-those-new-retina-display-macs-feature/
A huge internal SSD isnt a game changer for anything, you need an external HD anyway
what you WONT READ on Apple.com etc. is that the larger SSD are MUCH FASTER due to SSD density
"The 512GB Samsung SSD found in our 13-inch model offers roughly a 400MB/s increase in write speeds over the 128GB SanDisk/Marvell SSD"
http://blog.macsales.com/19008-performance-testing-not-all-2013-macbook-air-ssds -are-the-same
Here is an excellent video comparison between the 11” I5 vs. I7 2013 Macbook Air.
http://www.youtube.com/watch?v=oDqJ-on03z4
http://www.anandtech.com/show/7113/2013-macbook-air-core-i5-4250u-vs-core-i7-465 0u/2
I5 vs. I7 performance 13” Macbook Air 2013
Boot performance
11.7 I5 ……11.4 I7
Cinebench
1.1 I5….1.41 I7
IMovie Import and Opt.
6.69 I5….5.35 I7
IMovie Export
10.33 I5…8.20 I7
Final Cut Pro X
21.47 I5…17.71 I7
Adobe Lightroom 3 Export
25.8 I5….31.8 I7
Adobe Photoshop CS5 Performance
27.3 I5…22.6 I7
Reviews of the newest Retina 2013 Macbook Pro
13”
Digital Trends (13") - http://www.digitaltrends.com/laptop-...h-2013-review/
LaptopMag (13") - http://www.laptopmag.com/reviews/lap...play-2013.aspx
Engadget (13") - http://www.engadget.com/2013/10/29/m...-13-inch-2013/
The Verge (13") - http://www.theverge.com/2013/10/30/5...ay-review-2013
CNet (13") - http://www.cnet.com/laptops/apple-ma...-35831098.html
15”
The Verge (15") - http://www.theverge.com/2013/10/24/5...w-15-inch-2013
LaptopMag (15") - http://www.laptopmag.com/reviews/lap...inch-2013.aspx
TechCrunch (15") - http://techcrunch.com/2013/10/25/lat...ok-pro-review/
CNet (15") - http://www.cnet.com/apple-macbook-pro-with-retina-2013/
PC Mag (15") - http://www.pcmag.com/article2/0,2817,2426359,00.asp
Arstechnica (15") - http://arstechnica.com/apple/2013/10...-pro-reviewed/
Slashgear (15") - http://www.slashgear.com/macbook-pro...2013-26303163/

Difference between CHAR and VARCHAR2 datatype

Difference between CHAR and VARCHAR2 datatype
CHAR datatype
If you have an employee name column with size 10; ename CHAR(10) and If a column value 'JOHN' is inserted, 6 empty spaces will be inserted to the right of the value. If this was a VARCHAR column; ename VARCHAR2(10). How would it handle the column value 'JOHN' ?

The CHAR datatype stores fixed-length character strings, and Oracle compares CHAR values using blank-padded comparison semantics.
Where as the VARCHAR2 datatype stores variable-length character strings, and Oracle compares VARCHAR2 values using nonpadded comparison semantics.
This is important when comparing or joining on the columns having these datatypes;
SQL*Plus: Release 10.2.0.1.0 - Production on Pzt Au 6 09:16:45 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> conn hr/hr
Connected.
SQL> set serveroutput on
SQL> DECLARE
2 last_name1 VARCHAR2(10) := 'TONGUC';
3 last_name2 CHAR(10) := 'TONGUC';
4 BEGIN
5 IF last_name1 = last_name2 THEN
6 DBMS_OUTPUT.PUT_LINE ( '-' || last_name1 || '- is equal to -' || last_name2
|| '-');
7 ELSE
8 DBMS_OUTPUT.PUT_LINE ( '-' || last_name1 || '- is NOT equal to -' || last_n
ame2 || '-');
9 END IF;
10 END;
11 /
-TONGUC- is NOT equal to -TONGUC -
PL/SQL procedure successfully completed.
SQL> DECLARE
2 last_name1 CHAR(6) := 'TONGUC';
3 last_name2 CHAR(10) := 'TONGUC';
4 BEGIN
5 IF last_name1 = last_name2 THEN
6 DBMS_OUTPUT.PUT_LINE ( '-' || last_name1 || '- is equal to -' || last_name2
|| '-');
7 ELSE
8 DBMS_OUTPUT.PUT_LINE ( '-' || last_name1 || '- is NOT equal to -' || last_n
ame2 || '-');
9 END IF;
10 END;
11 /
-TONGUC- is equal to -TONGUC -
PL/SQL procedure successfully completed.
Also you may want to read related asktom thread - "Char Vs Varchar" http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:1542606219593
and http://tahitiviews.blogspot.com/2007/05/less-is-more-more-or-less.html
Best regards.

What Are the Differences Between String and StringBuffer?

Both String and StringBuffer are final classes. StringBuffer grows in size dynamically. Could people help to detail other differences between String and StringBuffer?

String is immutable. In other words, once it is made, the contents of that instance of String cannot be changed (easily). The size and characters cannot be changed, and code can take advantage of this fact to optimize space. Also, once you have a reference to a string, you do not need to worry about it changing at all, so you can eliminate constant tests to verify things such as size in another class that may want to hold onto the string.
StringBuffer, as you noticed, can change dynamically. While this provides flexibility, it cannot be optimized and assumptions cannot be made as with strings. If a class holds a reference to a StringBuffer that it does not own, there is a possibility that it may change things such as size when the class tries to use it later. StringBuffer is also less efficient in handling space then an equivalent String. The character array to hold a String is exactly the length to hold all the characters. StringBuffer, on the other hand, adds a 16 character buffer of array space for possible expansions. Also, the size of the internal array doubles when its internal capacity is exceeded. So, unless you explicitly maintain the size, a StringBuffer will take up more memory then an equivalent String, and if your program needs thousands of instances of Strings (which is not uncommon), that space can add up.
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Re: The difference between update() and doFinal() in ClassCipher

Hi Guys,
I found this topic,
The difference between update() and doFinal() in ClassCipher
during a Google Search. I need your help, because I'm working on a project for an university exam.
It's about a Client FTP that sends and received files with the content crypted.
I'm using DES Encryption with "DES/CBC/PKCS5Padding".
I have this doubt: when it's correct to uso the doFinal method? At the last block of the file, or after it? (for encryption)
And during the decryption, how can I use the result of the doFinal operation?

Reposting with {code} tags
capagira87 wrote:
Ok these are the functions:
public void CodificaInvia (String cd, String filename, SecretKey Key) // it opens, codes and sends to the server the content of the file 512 bytes per time
int returncode=0;
Socket DataSock = null;
FileInputStream fis = null;
byte [] text = null;
try {
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ObjectInputStream cin = new ObjectInputStream (DataSock.getInputStream());
ObjectOutputStream out = new ObjectOutputStream (DataSock.getOutputStream());
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AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);
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cipher.init(Cipher.ENCRYPT_MODE, Key, paramSpec);
fis = new FileInputStream (cd+File.separator+filename);
int size = fis.available();
if ((size%8)==0)
text = new byte [size];
} else {
do {
size++;
} while ((size%8)!=0);
text = new byte [size];
fis.read(text,0,fis.available());
byte [] ciphertext = cipher.doFinal(text);
out.writeInt(ciphertext.length);
int numblock = ciphertext.length/512;
int resto = ciphertext.length%512;
out.writeInt(numblock);
out.writeInt(resto);
byte [] tempblock = new byte [512];
for (int conta=0; conta<numblock; conta++)
for (int i=0; i<512; i++)
tempblock=ciphertext[(conta*512)+i];
out.write(tempblock);
out.flush();
if (resto > 0) // this block works if the file size is not multiple of 512
java.util.Arrays.fill (tempblock, (byte) 0);
int h= numblock*512;
for (int i=0; i<resto; i++)
tempblock[i]=ciphertext[h+i];
out.write (tempblock);
out.flush();
System.out.println ("OK!");
} catch (Exception e)
e.printStackTrace();
public void RicezioneDecodifica (String filename, SecretKey Key) // in this function I receive the file blocks, I decrpyt them and I save the decrypted text into a file
Socket DataSock = null;
byte [] buffer=null; // it saves the received data
String Plaintext = new String (); // it saves the deciphered text
try {
ServerSocket ss2 = new ServerSocket (TRANSMISSION_PORT);
DataSock = ss2.accept();
ObjectOutputStream out = new ObjectOutputStream (DataSock.getOutputStream());
ObjectInputStream cin = new ObjectInputStream (DataSock.getInputStream());
byte[] iv = new byte[] { (byte) 0x8E, 0x12, 0x39, (byte) 0x9C, 0x07, 0x72, 0x6F, 0x5A };
AlgorithmParameterSpec paramSpec = new IvParameterSpec(iv);
Cipher dcipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
dcipher.init(Cipher.DECRYPT_MODE, Key, paramSpec);
int size = cin.readInt();
int numblock = cin.readInt();
int resto = cin.readInt();
if ((size%8)!=0)
do{
size++;
} while ((size%8)!=0);
int ByteLetti=0; // counter of read bytes
buffer = new byte [size];
for (int conta=0; conta<numblock; conta++)
int a=cin.available();
byte [] tempblock = new byte [a];
cin.read(tempblock, 0, a);
for (int i=0; i<a; i++)
buffer[ByteLetti+i]=tempblock[i];
ByteLetti=ByteLetti+a;
byte[] texttmp=dcipher.update(tempblock);
String tmp = new String (texttmp, "UTF8");
Plaintext=Plaintext+tmp;
if (resto>0)
int a = cin.available();
byte [] tempblock;
if ((a%8)>0)
do {
a++;
} while ((a%8)!=0);
tempblock = new byte [a];
cin.read(tempblock, 0, cin.available());
byte[] texttmp = dcipher.doFinal(tempblock);
String tmp = new String (texttmp, "UTF8");
Plaintext = Plaintext+tmp;
ObjectOutputStream oos = new ObjectOutputStream (new FileOutputStream (filename));
oos.writeChars(Plaintext);
oos.flush();
oos.close();
} catch (Exception e)
e.printStackTrace();

Difference between char and varchar, also the difference between varchar2

Hi,
Can anyone explain me the difference between char and varchar, and also the difference between varchar and varchar2...

Varchar2 is variable width character data type, so if you define column with width 20 and insert only one character to tis column only, one character will be stored in database. Char is not variable width so when you define column with width 20 and insert one character to this column it will be right padded with 19 spaces to desired length, so you will store 20 characters in the dattabase (follow the example 1). Varchar data type from Oracle 9i is automaticlly promoted to varchar2 (follow example 2)
Example 1:
SQL> create table tchar(text1 char(10), text2 varchar2(10))
2 /
Table created.
SQL> insert into tchar values('krystian','krystian')
2 /
1 row created.
SQL> select text1, length(text1), text2, length(text2)
2 from tchar
3 /
TEXT1 LENGTH(TEXT1) TEXT2 LENGTH(TEXT2)
krystian 10 krystian 8
Example 2:
create table tvarchar(text varchar(10))
SQL> select table_name,column_name,data_type
2 from user_tab_columns
3 where table_name = 'TVARCHAR'
4 /
TABLE_NAME COLUMN_NAME DATA_TYPE
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Best Regards
Krystian Zieja / mob

What is the difference between avi and mov

Hi FCP users,
I am actually an audio guy, but I would like an answer on something.
I work with Logic, and usually use quicktime movies when I am working to movies. But I am working with a client who is an Avid user and swears by avi files. Can someone explain to me the difference. My client explained to me that avi's are better than mov files. He claims their file sizes are bigger, so therefore there quality is better. He said there is some form of compression on quicktime movies which lessen the quality to avi, even if the mov is uncompressed apparently the quality is still less than an uncompressed avi. If this is not true, could someone give me the real big difference between the two.
I thought is was more of a preference, like windows users prefer wav, and apple users like quicktime movies. Like with audio, there isnt a huge difference between aif and wav. Windows users prefer wav and apple users aif.
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.
Thanks in advance for any help.
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.
You must find the lowest common denominator video format that will work on both of your systems. That could be conventional DV, dunno, never used Avid and never tried to edit anything on a PC. But I can tell you this with absolute certainty, it will be easier and, in the end, much less expensive for one of you to adopt the other's platform for the duration of this project. The time you waste transcoding, arguing, formatting your drives, buying secondary products, fitting round pegs into square holes, and trying to find a workable solution (that will keep changing as the project gets more complicated) will cost you much more in terms of money out of pocket and creative frustration than simply buying/renting another station.
bogiesan

Difference between scalable and failover cluster

Difference between scalable and fail over cluster

A scalable cluster is usually associated with HPC clusters but some might argue that Oracle RAC is this type of cluster. Where the workload can be divided up and sent to many compute nodes. Usually used for a vectored workload.
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Office 2013 installed with KB2817430, windowsupdate still finds KB2850036. difference between KB2817430 and KB2850036

Hi,
I've made a silent Office 2013 installer with /admin and put SP1 MSP's in the updates folder.
After deployment under installed updates it shows: Service Pack 1 for Microsoft Office 2013 (KB2817430) 32-Bit Edition
But when I check for new updates, "ServicePack 1 for Microsoft Office 2013 (KB2850036) 32-Bit Edition" is ready for download and install.
What is the difference between KB2817430 and KB2850036?
It seems that I cannot download KB2850036 and also integrate it in the silent installation.
Another question: Is the updates folder from Office only for servicepacks? or can I put also updates and patches MSP files in here? If yes then i've got a lot of files with the same name and different files sizes. For example After extracting SP1 I've got
the file "proofsp-en-us.msp" which is 10MB and when extracting another patch also i've got a proof-en-us.msp and is 8MB.
So which one need to go in the updates folder?
Can anyone help me out?
thanks

Hi,
As can be seen from below KB articles, KB2817430 only contains Service Pack 1 (SP1) for Office 2013, whereas KB2850036 also contains Service Pack 1 (SP1) updates for other Office 2013 related desktop products. For example, Microsoft Office 2013
Language Pack, Project 2013, SharePoint Designer 2013, Office Proofing Tools 2013, etc.:
https://support.microsoft.com/en-us/kb/2850036
https://support.microsoft.com/en-us/kb/2817430
So if you have any of these products on your computer, Windows Update might offer related updates to you.
Regarding the Updates folder issue, you can put any Office software updates in it during the initial installation, such as service packs or hotfixes. A newer patch might make changes to a specific file, you can check the version number of that file, and keep
the newer one in the folder.
Here is the reference you will need:
http://blogs.technet.com/b/office_resource_kit/archive/2011/05/05/using-the-updates-folder-to-deploy-software-updates-with-an-office-2010-installation.aspx
(Note, it was created against Office 2010, however the steps should hold good for Office 2013)
Regards,
Ethan Hua
TechNet Community Support
It's recommended to download and install
Configuration Analyzer Tool (OffCAT), which is developed by Microsoft Support teams. Once the tool is installed, you can run it at any time to scan for hundreds of known issues in Office
programs.
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact
[email protected]

Difference between logical and virtual terms

Hello,
This is not purely oracle question; but in documentation so many times we find 2 terms:
A. Logical
B.Virtual.
So what is the principle difference between logical and virtual? As I know physical is that which I can see and touch; while logical/virtual is that is imaginary. We say tablespace is logical not virtual; while Java Virtual Machine; not Java Logical Machine. So I want to know; what is the principle difference; why two words for an imaginary thing. Before posting question; I searched in google as “Difference between virtual and logical” but I couldn’t found the answer.
Please quote your comments.
Thanks & Kind Regards
Girish Sharma

Girish,
I wont say that I am correcting you as this is like that half glass full/empty thing.May be what I see is half empty , you would see the same as half full.
Well now coming to the explanation.I am saying honestly , I got more confused after reading your definitions.What do you mean by saing that tablespace is not virtual.I see it as purely virtual.We don't say it as virtual tablespace or logical tablespace but it is actualy logical/virtual, having no existance but just the definition right?
How can you say that the size of virtual is larger than logcial?The size of tablespace is actualy the sum total of size of datafiles.So it actualy becomes very larger right?Much larger than JVM which is of few megs only.
The point 3 totally knocked me out.I have no idea what you said.
Ok I tell you this.Just remember the definition that Hans gave already.If you ask me than its the best definition that we can have. Just remember this and if some one asks you more further than give them your point 3 definition and tell them understand this ;-).Please don'tmind I am just kidding. Its just semantics.Don't get lost into it.You will find many people using both the terms interchangibly. So its ok.I shall stick with Hans's defintion,simple and concise.There are lot more other topics to dig upon in oracle.I can mail you lots of them.Spend time on those.Don't think that I am demotivating you.I understand you asked only because you have a doubt.But we got a good resolution of it and beyond that, its not of much use to dig it atleast not in the technial terms.
Cheers
Aman....
PS:Are you on oraclecommunity.net?

What's the difference between Routing and Service Callout in ALSB?

I am puzzled by that.
what's the difference between them.
Or what's the situation should use Routing, and that of service callout?

There is little difference between routing and service callout.
Routing is symbolizes the transition of request thread to a response thread starts. (in OSB every invocation of proxy is undertaken by different request and response threads ). So by this definition, there can be only one route node in a pipeline.
Service call out is also used for similar actions as route node , but in pipeline. So service callout can be either in request pipeline (request thread) or in response pipeline (response thread ) . So in a proxy you can have multiple ServiceCallouts but only one route node.
There are some other slight differences.
Manoj

What 's the difference between quote ' and double quote "?

what's the difference between quote' and double quote "?
when we use each one?
Exemple of use of each case?

'c' is a char, ie. a primitive type representing a single character
"c" is an instance of the String class length 1.

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I was reading the comparision of these two Acrobat versions and for Pro it says:
Edit and enhance photos to add to your PDF communications with Adobe Photoshop® CS5.
Quickly transform static PowerPoint slides into compelling, interactive PDF presentations with Adobe Presenter
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Does that mean that the Pro version includes Photoshop, Presenter and Captivate programs as well? Or, what are the differences? As an aside, the new look and feel of the Adobe website is confusing at best. Seems geared to being flashy, not useful.
Regards, David

Acrobat does not included those other packages. One of the pages that always struck me funny (maybe I have a twisted mind) but has this artistic background is the updates page. The background looks like a lacy bra to me. It is the first thing that comes to mind every time I see it. That is a problem with abstract images (that are typically unnecessary and waste bandwidth), that a lot is in the eye of the beholder. Actually, I have heard from many others that also see the bra.
OK, back to Acrobat. There are several aspects of Acrobat that allow you to have links to the other products built in, but they are not included. The page at http://www.adobe.com/products/acrobatpro/buying-guide.html?promoid=JIJYS provides some info, but a lot is missing. For instance there are differences with PDF Optimize and Reduce File Size I think (sorry, I do not have Std to check). One important one that is part of pro is the preflight option. Apparently Std does not include portfolios or allow PDF comparison according to the chart.
If you are into forms, then Std apparently will do them as AcroForms (my preference, partially because of familiarity), but does not include Designer if that was your preference. Some of the enabling for Reader is not available in Std. Also, Std does not allow embedding Flash. Std is limited for some of the products that include PDF Maker (not a big one for me, but might be important to you).
That is a quick summary based on the chart. However, be aware there are some other features that the chart does not seem to cover. For the difference between Std and Pro, I would suggest getting Pro. The big hit is the initial cost of the product, not the step up to Pro. In a business plan consider the time that might be wasted trying to do some of the things in Pro that are not in Std. Those are the types of issues to consider. Many folks consider the cost to be large, and for a small business it is. However, in the long term it may be worth the cost.
Keep in mind that many large CAD packages in engineering run about $30,000 for a single license, half the cost of the engineer that would use it. Some other tools are about $15,000. In that view, Acrobat is cheap (except for cheapskates like me).

Difference between exists and createIf

Hi all,
In Node functions we are having createIf and exists. what is the difference between createIf and exists? Where we have to use createIf and where we have to use exists?
Thanks
Sridhar

Hi Sridhar
Source Node --- Exists ---target Node ..... this says that the target node will be created if and only if the source node (may be source occurences is 0...1)through which you are mapping exists or not.. If it than target node will be created if not than it wont be created ...
Source node -
creatIf---target Node ...... this says that there will be some condition in source side ...if that condition is true than create the target node otherwise do not create
Regard
Abhi

What are the differences between Oracle and other NoSQL database

Hi all,
I would like to know what the differences between Oracle and other NoSQL database are.
When and why should we use Oracle?
Is Oracle NoSQL database link with Big Data Appliance?
Can we use map-reduce on a single personal computer? How should we install Oracle NoSQL database to use map reduce on a single personal computer?
Do we also have eventual consistency with Oracle NoSQL database? Can we lose data if master node fails?
Are transactions ACID with Oracle NoSQL database? How can we prove it?
Thanks.

893771 wrote:
Hi all,
I would like to know what the differences between Oracle and other NoSQL database are.
When and why should we use Oracle?I suggest that you start here:
http://www.oracle.com/technetwork/database/nosqldb/overview/index.html
Is Oracle NoSQL database link with Big Data Appliance?Yes, Oracle NoSQL Database will be a component of the Big Data Appliance.
Can we use map-reduce on a single personal computer? How should we install Oracle NoSQL database to use map reduce on a single personal computer?Yes, I believe you can run M/R on a single computer. Consult the various pieces of documentation available on the web. You may run Oracle NoSQL Database on the same computer that you are running M/R on, but it is likely that they will compete for CPU and IO resources and therefore performance may suffer.
Do we also have eventual consistency with Oracle NoSQL database? Yes.
Can we lose data if master node fails?If you run Oracle NoSQL Database with the default (recommended) durability settings, then if the master fails, a new one will be elected and data is not lost.
Are transactions ACID with Oracle NoSQL database? How can we prove it?Yes, each operation is executed in an ACID transaction. The API has the concept of "multi" operations which allow the caller to perform multiple operations on sets of records with the same major key, but different minor keys. Those operations are also performed within a transaction.
Charles Lamb

Difference between size and length of a node

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