What is the difference between varchar and varchar2

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• How can I justify the difference between varchar and varchar2 data type

  Hi all
  
  How can I justify the difference between the data type varchar and varchar2 on any table for space management.
  Is there any query to justify this.
  
  
  Concerning
  Girish
  
  Published by: boujemaa on February 2, 2011 21:23

  http://download.Oracle.com/docs/CD/B19306_01/server.102/b14220/datatype.htm#sthref3780

  
  The VARCHAR data type

  The VARCHAR data type is synonymous with the VARCHAR2 data type. To avoid any changes in behavior, always use the VARCHAR2 data type to store strings of variable length.
  

• What is the difference between extensions and Plugins and Add-ons?

  I'm sorry if here is not the right place for this post.

  What is the difference between extensions and Plugins and Add-ons? Apparantely, they differ in some sense or aspect, but I do not know how. Please, if it is not too complicated, explain in detail and simple language. Thanks in advance to 1 million.

  Kind regards
  Danesh

  Hi Danesh,

  You should take a look at this article for an explanation. Plugins and extensions are essentially types of Add-ons as well as of the characters and themes.

  Hope this helps!

• What is the difference between Firefox and Namoroka 64-bit? I have a 64-bit computer. Which should I use?

  What is the difference between Firefox and Namoroka 64-bit?
  I have a 64-bit computer. Which should I use?

  The officially supported only is Firefox - which is your best choice, unless you want to test the new features...

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• What is the difference between AXIEM and EMSIght? What are the benefits of AXIEM by EMSight if any?

  I wonder what are the differences between AXIEM and EMSight. Are associated with application? One is better than the other? Please explain.

  AWR estimated AXIEM most powerful plan EM Simulator around.   AXIEM is at the center of continuous research and improvement, while EMSight is only worked on if revealed serious flaws.  Here is a summary of the differences:

  Mesh

  • EMSight must mesh the nearest grid drivers using rectangles.  This causes the mesh to have more elements mesh when there are small and large geometries.  The grid should be small enough to capture the small geometry but then causes large geometries to mesh more.   In addition, angled or curved structures causes inefficiencies mesh.
  
  
  • AXIEM STS forms, rather than a grid.  In addition, the mesh can be rectangle or triangle.   This allows a much more efficient mesh.   AXIEM generally have a much more efficient
  
  
  • AXIEM contains the ability to process forms to clean geometries that cause inefficiencies of the mesh.  EMSight does not have this feature.
  
  
  • AXIEM can forms thick metal mesh, EMSight can not, and user must make approximations when thick metal will change coupling (loss is recorded properly with the thickness of the metal)

  Ports

  • The ports are for the most part similar, but parasites due on AXIEM ports are less.  In addition, the AXIEM has a side wall, thus the effects of not move of the terms of reference of the edge of the line are a lot less AXIEM in.
  
  
  • Ports can be added to most any place in geometry with AXIEM.  For EMSight, the ports are usually only added outside the geometry and have limitations to the aircraft on either side of the reference speaker.

  Problem solvers

  • EMSight does not have a low frequency Solver.  Stop low-frequency and then extrapolate to DC.  This usually works well, but you must take into account if the extrapolation is accurate.  AXIEM presents both a low and high frequency Solver so will do better in a low frequencies generally much better in DC.
  
  
  • Solver of EMSight scales O (n) ^ 2 for memory and O (n) ^ 3 for the moment.   It has a special algorithm to break the question of memory, but the question of time is the killer.  AXIEM has a direct Solver which scales in the same way and an iterative Solver which will scale O (nlogn).   In other words, AXIEM can solve a lot of bigger problems than EMSight.
  
  
  • Several AXIEM processes are multithreaded as EMSight.

  Speaker

  • EMSight is inside a perfect driver side wall.   This works well if you the circuit is in the same cavity.  If not, you must know the rules of them on to the forms of space of the flanks and how that much to extend the port could reference planes.   AXIEM is not here.   AXIEM does not currently have to simulate a perfect driver side wall.

  I don't know that I missed a few aspects of the tools.   From the point of view of the AWR that AXIEM is the tool of choice, except in a few cases have been EMSight may be required.

• What is the difference between tear and Brüning cd

  What is the difference between tear and Brüning a cd.

  Hi SirNickLong,
  Here are a few links to explain the difference:
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• What is the difference between nc6320 and nx6320 laptops?

  What is the difference between nc6320 and nx6320 laptops?

  Can I use the same drivers for each of them?

  Hello:

  There is not much difference.

  If you want to compare all the details you can check this link:

  http://h18000.www1.HP.com/products/QuickSpecs/12428_div/12428_div.PDF

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  nc6320:

  http://h20000.www2.HP.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=1839154&lang=en&cc=us&TaskID=135&prodSeriesId=1839146&prodTypeId=321957

  NX 6320:

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  Paul

• What is the difference between containers and hyper-v server windows?

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  What is the difference between containers and hyper-v server windows?

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• What is the difference between upgrade and custom installation options?

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  How to do a clean install:

  http://www.SevenForums.com/tutorials/1649-clean-install-Windows-7-a.html

  Sometimes the only way to upgrade is to do a clean install,

  " Upgrade Windows XP to Windows 7 "

  http://Windows.Microsoft.com/en-us/Windows7/help/upgrading-from-Windows-XP-to-Windows-7#T1=tab01

  To upgrade your Windows XP computer to Windows 7, you will need to select custom during installation of Windows 7. A custom installation keeps your programs, files or settings. It is sometimes called a 'clean' for this reason installation.

  "Upgrading from Windows Vista to Windows 7"

  http://Windows.Microsoft.com/en-us/Windows7/help/upgrading-from-Windows-Vista-to-Windows-7#T1=tab01

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• What is the difference between RP1 and RP2 in ASR1006

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• 6921 ip phones. What is the difference between 'Standard' and 'Slimline '.

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  I am looking to buy some new 6921 charcoal IP phones and I am confronted with 2 options:

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• What is the difference between ipv4 and ipv6?

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• What are the differences between RT and Win 8 Pro?

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  What are the differences between RT and Win 8 Pro?

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  Windows RT - built on the same basis as Windows 8, it works on a different processor called ARM and not running programs in Windows 7, Vista, or Windows XP. In addition, it comes with Microsoft Office 2013 while Windows 8 does not work. It only comes on the new devices, in contrast to Windows 8 you can buy a license for an existing computer.

• What is the difference between Mutipoint and Multiway video calls?

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  They are both multi-point calls, however, Multiway is a feature that you can activate with the correct infrastructure and MCU in place, which will allow the ends without a telepresence MCU Office and integrated JabberVideo customers of degenerate transparently a point-to-point call in a multipoint call on the relevant MCU.

  See the relevant Multiway Deployment Guide corresponding to the version of software that you run on your VCS - C for more information; http://www.Cisco.com/c/en/us/support/unified-communications/Telepresence-video-communication-server-VCs/products-installation-and-configuration-guides-list.html

  /Jens

  Please note the answers and score the questions as "answered" as appropriate.