Please explain the difference

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• Please explain the difference between the sql data

  Please explain the difference of next sql
  
  Select emp. ID, Dept. DeptName from Employee emp
  Join (select DeptId, DeptName Department where deptId = 2) dept on emp.deptId = dept.deptId
  
  
  Select emp. ID, Dept. DeptName
  employee emp
  inner join Department dept
  on emp. DeptId = Dept. DeptId
  where Dept. DeptId = 2
  
  two of them provide the same results, but what is the good? Is there a difference... Does this affect performance
  
  What is the best way of writing
  
  Thank you
  
  Published by: user8708731 on August 30, 2011 11:02
  published the first query to select only Deptname
  
  Published by: user8708731 on August 30, 2011 11:12

  select emp.Id,
         dept.DeptName
    from Employee emp
         join
         (select DeptName, DeptId
            from Department
           where deptId = 2
         ) dept
         on emp.deptId = dept.deptId
  
  all Employee rows are joined to filtered Department rows (a single row or no rows)
  matching deptIds are retained and make their way to the result
  
  select emp.Id,
         dept.DeptName
    from Employee emp
         inner join
         Department dept
         on emp.DeptId = dept.DeptId
   where dept.DeptId = 2
  
  all Employee rows are joined to all Department rows matching deptIds are retained and
  filtered dept.deptIds make their way to the result
  

  Concerning

  Etbin

• Can someone please explain the usefulness of "Libraries" in Windows 7?

  Can someone please explain the usefulness of "Libraries" in Windows 7?

  All this means to me is that:

  1. it can be indexed, whoop-de-doo! I know how to turn on the indexing of files.
  2 takes Double extra clicks to get the folder I want to!
  3 half-G * D - D * M-TIME, I find myself clicking on a duplicate, My Documents link only which is access denied and have to click on the actual file just next door!

  Suffice it to say. I ALSO HATE the frickin' Ribbon in Microsoft Office and I woke up on the wrong side of The Bed upwards!

  . . . AND WINDOWS 7 SEARCH SUXX - BREEZE ON HALF THE COMPUTERS THAT I MANAGE.

  Windows Net Admin - more than 20 years.

  Understand the win - 7 library system,

  http://www.howtogeek.com/HOWTO/10283/understanding-the-libraries-feature-in-Windows-7/

  http://msdn.Microsoft.com/en-us/magazine/dd861346.aspx

• Hello. Hard drive of my computer totally crashed & I had to wipe my hard drive. I wasn't able to log out of my apps for the creation of clouds which my wife has 2 licenses for us. Can someone please explain the process to re download these apps please

  Hello. Hard drive of my computer totally crashed & I had to wipe my hard drive. I wasn't able to log out of my apps for the creation of clouds which my wife has 2 licenses for us. Can someone please explain the process to re download these apps please? Thank you..

  Hello

  Please refer to the help documents below to download the application Adobe CC:

  Creative cloud to desktop

  Download, install, update or uninstall applications

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• 2 GB limit - please explain the concept

  I have more than 35,000 photos already uploaded in Revel.

  In order to continue to remain a free Member, I will have to delete all my photos and only within the limit of 2 GB?

  Please explain the new concept... Thank you!

  You can continue to use revel for free with the new model change, however, if you have registered more than 2 GB of files, then you will not be able to download additional photos or videos until you delete some files to get below the limit you or subscribe to get unlimited downloads.

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• Explain the difference between OIA and Global users

  Hi all;
  
  I have question: explain the difference between OIA and Global users
  
  smbd explain this issue?
  
  --
  Eugene

  Globalusers are your HR users typically & stored in the table globalusers-> http://wikis.sun.com/display/OIA11gDocs/GlobalUsers+Module

  While the OIA users are users with access to the OIA console for example certifiers etc & stored in the RBX tables *-> http://wikis.sun.com/display/OIA11gDocs/Security+Module#SecurityModule-RBXUSERSTable

• Dear gurus: Can u pls explain the difference between VARCHAR2 & NVARCHAR2?

  Dear gurus,
  
  Can you please explain in simple terms we beginners the difference between VARCHAR2 and NVARCHAR2.
  
  I have read all the documentation, but I just don't understand?
  
  What exactly is the advantage of NVARCHAR2?
  
  When should we use it?
  
  What are the differences?
  
  NVARCHAR2 is used only when using non-English characters sets?
  
  Is there a saving advantage?
  
  Some say that NVARCHAR2 will give different VARCHAR2 columns values when you use the LENGTH function?
  
  Thanks in advance
  
  Published by: user12240205 on October 27, 2011 06:15
  
  Published by: user12240205 on October 27, 2011 06:15

  CHAR (CHAR, VARCHAR2, LONG, CLOB) data types store data in the database character set. NCHAR (NVARCHAR2, NCHAR, NCLOB) data types store data in the national character set. The national character set can be either AL16UTF16 (the default) or UTF8 (rare compatibility requirements). The database character set can be one of the dozens of characters supported by Oracle games. The recommended database charset is AL32UTF8.

  AL16UTF16 and are all two AL32UTF8 Unicode - UTF-16BE and UTF-8 encodings, proportionally.

  The benefits of the NCHAR data types:

  -They are guaranteed to Unicode data types, in other words, any database from Oracle 9.0 can store Unicode data into NCHAR, NVARCHAR2, and NCLOB columns.
  -Storage Unicode languages of South and East Asia is more compact in relation to AL32UTF8 AL16UTF16. AL16UTF16 storage is only possible in NCHAR data types.

  (Serious!) cons of NCHAR data types:

  -You need a special coding in client access API to ensure that the data you want to store NCHAR data type columns is not through conversion to character data, lose the advantage 'warranty Unicode.
  -There are Oracle components that do not support the data types NCHAR, including Oracle Text and XDB.
  -It's confusing and prone to work with two character sets of database, the database character set and the national character set.
  -Storage of most European languages is more compact in AL32UTF8 compared to AL16UTF16.

  Advice from the Oracle:

  -For any new database, create it with the character AL32UTF8 and forget types NCHAR data.
  -For all existing applications to make multilingual, migrate the database backend to AL32UTF8 and forget the NCHAR data types.
  -For any database existing non-Unicode serving a large legacy application system that is too expensive or impossible migrate to Unicode, you are invited to add a minor module which must support multilingual data and for which a separate database makes little sense, you can consider NVARCHAR2 columns for these multilingual data.

  -Sergiusz

• Please explain the guidelines related to the Platform.invokeLater and reuse of cell in tableview

  Hello

  1.

  Whenever I see tableview in JavaFX 2 + I see

  1. @Override   
  2. public Sub updateItem (last element of the string, Boolean void) { }
  3. Super .updateItem (element, empty);   
  4. if (item != null) {   
  5. button.setText (item);
  6. setGraphic (button);
  7. }  else { 
  8. (setGraphic)); /
  9. }
  10. }
  11. 
      

  
  

  So basically, this method is called for each item in my list. Now my questions:

  + where element can be null? I have a list < String > so I don't see the point of what's going on

  + Why does the (null) setGraphic else? Or more if the item is null then null graphics also.

  
  

  I understand that this code is related to the loading of data that you highlight and reuse the cells, but it is not clear to me how it works. Please explain a little bit what happens and what makes the super.update done too if possible.

  
  

  2.

  
  

  1. Platform.runLater (new Runnable() { })
  2. public void run() { 
  3. final Node scrollBar = comboBox.lookup (".scroll-bar: vertical '); 
  4. scrollBar.setOpacity (0,); 
  5. }
  6. });

  In the present code why can't then I just directly called search & 'SetOpacity?

  I suppose that if I call it directly then it will run right in this moment. But if I wrap in this executable, then it is added to a queue of javafx, which will process my application when it can then perhaps do not stress the UI? But I don't know, can you tell if it is correct or not I think?

  I think it's very important for all developers who start with FX to understand the purpose of the present code.

  Thank you

  Desmond

  (When you have two questions, please post two separate interviews. It makes it easier for people to seek and find the answer in the future).

  So basically, this method is called for each item in my list.

  No, actually.

  The cells are just for rendering in your list items. If you have a lot of articles (or even a lot), so some scrolls off the screen, TableCells will not be created for them. In addition, the user scrolls around, the cells that represent the items that scroll off the screen can be used for items that are now visible. The updateItem (...) method will be called to update the cell to display the new item in this case.

  If relatively few cells is created. On the other hand, the updateItem (...) method can be called in quite frequently in certain circumstances as the cells are re-used.

  + where element can be null? I have a list of , so I don't see the point of what's going on

  There are two possibilities:

  1. The cell is empty. Note that in a table with very few objects, the table is filled with empty lines. Those are always represented by cells, which have the empty flag set to true and the item the null value property.
  2. NULL is a valid value perfectly put in (some implementations of) list. Therefore, it is possible that you really have null values in your list. In addition, in a TableView property to the value of the column for a given row can be set to null.

  + Why does the (null) setGraphic else?

  If the cell contained a non-null value before and is updated to represent a null value, then you will need to remove the graphic. (Otherwise you may find yourself with buttons in the empty lines, which is probably not what you want.) This can happen if the lines are removed, or possibly during scrolling like cells are reused (the latter is possible, but it is difficult to see what happens to implementation). In trees, the cells can become empty as nodes in the tree are reduced.

  What makes the super.update makes

  The default TableCell performs a lot of work. He calls the behavior by default until your custom implementation is called. This default behavior includes up-to-date of the item and empty properties to new values, saving listeners of the mouse to the selection behavior and editing behavior if the cell is editable, etc..

  It is not clear to me how it works

  It's not really supposed to be. It is object oriented programming: you're supposed to only rely on the feature (which it does) rather than implementing (how it does). This frees up developers to JavaFX to vary the implementation (to improve performance, for example) from one version to the other, as they did quite significantly from 2.2 JavaFX JavaFX 8. All you know is that some cells are created, they can be reused, and the updateItem (...) method will be called whenever the modification of the element in a particular cell. Which may be because the property that the cell is the changed view, either because the cell was re-used for another element. The cells can become empty due to reuse. No guarantees are made as to how and when reuse will occur. (Make these guarantees would greatly limit the ability of the JavaFX team to change things in the future)

  In the present code why can't then I just directly called search & 'SetOpacity?

  It's not easy without a context, but I guess that this code is in a (...) Platform.runLater to ensure that the nodes were posted on the screen.

  The problem is that research based on css will not succeed usually until a render pass is filed, which is always after the step was established, but can not be immediately after. The Platform.runLater (...) here forces the code to execute after all what is currently pending on the Thread of the FX Application.

  12. Try to explain the difference between a DPS application and a coded / from scratch app.

      Guys, I need help.  I'm writing a guide for my clients regarding the DPS. I want to include some information on the differences between a DPS App and a code app. Any of you have ever had to explain that, and if you have, what did you say?

      The most obvious difference is that a DPS app is what you get InDesign and a coded app, you must have a coder.  But what are the feature differences? As I am not a coder and do not have access to the resources of coding, I'm at a loss.

      Thank you

      Karen

      They are large enough.

      In short, the DPS is a solution or a framework that allows non-technical people to create content for use on multiple platforms, with various limitations by platform. Especially there sense for Magazines and newspapers as a platform target, with a few exceptions.

      For example, DPS does not access the hardware device API, such as the cameras of the device, the GPS or accelerometer. Limits of the DPS depending on also what license you buy, for example, if they are a client of the company, they would be able to build a showcase custom, which is not available in the Pro licenses or simple editing.

  13. Please explain the meaning of 'Deferred' in the JIRA bug database

      Dear Adobe team,

      I posted a few bugs recently and discovered this morning that they are now "closed" with a "Deferred" resolution

      Some of these bugs are

      https://bugs.Adobe.com/jira/browse/FB-26396

      https://bugs.Adobe.com/jira/browse/FB-26317

      https://bugs.Adobe.com/jira/browse/FB-26081

      Please explain how to understand this decision.

      My hypothesis is that the bugs remain open until they are solved in the next version.

      Why are these bugs closed or delayed?

      When the deferred bugs are reopened?

      Management will likely chime in here.

      Briefly, the bugs get carried over to the current version. They have reviewed again when planning continues for the next version.

      The only time wherever a bug/request is really dead is when it is marked as "retirement".

      Jason San Jose

      Software engineer, Flash Builder

  14. What exactly (in a square space, please), is the difference betweeen: ID Hotmail, Windows Live ID and aliases?

      Are the differences, search engines?, it is more advanced than the other?, or;  It's just the specific tastes of a branching and / preferences?

      Is not Messenger / Chat / use Mobile accessible or functional with the Hotmail ID, Windows Live ID and aliases? jackie_cook11@Hotmail,jackie_cook11@Yahoo.

      This forum is for posting comments on the web site of Microsoft Answers, only not for questions on another topic.

      In the future, ask questions of the WIndows Live ID in WIndows Live Windows Live ID Portalsolutions Center.

      ID WIndows Live ID is just a login name that you use for Windows Live servers.  It takes the form of an e-mail address.  All Hotmail addresses are identifiers WIndows Live ID.  All live.com addresses are identifiers WIndows Live ID.  You can also use any address as a Windows Live ID, I think that, as long as it's an email address valid and you can receive mail at the address.

      Mail aliases are usually e-mail addresses that map to the same mailbox under another address.  This means that sending mail to one of the alias book that mail to the mailbox.  PC can have aliases in both domain name Service.  This means that several names can map to the same IP address in the domain name service so that we can use one of the aliases to access a particular system.  Somehow, it's no different than a person with aliases.

  15. 570 or 580... Please explain the advantages/disadvantages

      Looking to put together a list of budget for the next fiscal (not before July, but I need a break from editing so I do now) and I have a question about video cards. I've done a lot of research here, but have not found an answer clear re: 570 or 580. Obviously the 580 is about $150 more expensive, a price point, is not as nice. But if the price was not a problem, and all things are equal, what would be the advantage of the 580 on the 570? So-called Adobe certifies both, which is nice.

      I am running a 285 more older, who is showing it's age I get images RED Epic, with several layers, so it's time to get back in the world. Quadros are simply not yet an option, price wise, which is what led me to the battle between these two.

      My other features are the following, and the upgrade of processor and Mobo not really viable options right now:

      • I7-920 @ 2.67 (not OC'd)
      • P6T6 WS Revolution
      • 12 GB DDR1333 (upgrade in July to 24 GB DDR1600)
      • Power supply 650W (upgrade to 1000W PSU in July)
      • total of 6 company WD SATA disks (3 x single Disk, 1 x 3-disk RAID-5)
      • total of 2 optical drives (1 x DVD - RW, 1 x BD - RW)
      • RocketRaid 231 x external PCIe SATA controller, running a 4-RAID-5 G - Speed eS drives and two external single like eSATA only (do not know if it is advisable... to run single disks in slots available on my RAID controller, but it worked...) I'm sure I'll hear about it, if it is not advised! )

      Completely separate issue: I know that this has absolutely nothing to do with how PrPro works, but I'm curious and I thought someone here might be able to answer the question. The 'Windows performance index' for my system is 5.9 on the 8 point scale, and the main hard drive is what he declined to 5.9... each item is 7.3 or more. What should I do for my main hard drive mentioned in the range of my other components? Is there a point to do so, or the WEI organizations is just a hype thing Microsoft has done for the consumer and has really no real impact on the system?

      The IFE has absolutely no value.

      The difference in performance between 570 and 580 is very low. RE-ENGINEERING-wise, the 570 is the best option.

  16. Can someone please explain the TV Turner in the MediaCenter for me please?

      I just bought a HP Pavilion dv5 - 1334 laptop ca and im yet to learn all that he can do. I read a few things in the manual and in the section on the TV Tuner user guide, but I still don't understand what it is and what it does.

      My computer can load with MediaCenter and I have a small remote control. He came with the "Tuner", but I say to myself that I could get one? How much cost and where I would get one. What is doing?

      A little more, someone will explain to me please?

      Thanks a bunch!

      the tv tuner is a device that connects an antena to your computer behaves as a TV idk why all the flags do not come with tv tuners

      but you can buy one in stores or online even the aleady tunner comes with a remote control aleady pavilions have the mobile remote control

      idk if it will work with em or not so generally the tuner made just your laptop into a tv... you can connect to the cable or dtv just

      through it

  17. Please explain the magic! (Question)

      The ActionScript code snippet below comes from the sample application BlaseDS cat. Can someone explain please the magic that declares the property object AsyncMessage.body (IMessage.body?) chatMessage? It is not in the docs anywhere, so I think it is not integrated into AsyncMessage. And it is not defined in any of the source app files.

      From a world of strongly typed development, see a property which apparently has no statement and is not instantiated does not pass explicitly you the sniff test.

      Thank you.

      < mx:Script >
      <! [CDATA]
      
      Import mx.messaging.messages.AsyncMessage;
      Import mx.messaging.messages.IMessage;
      
      private void send (): void
      {
      var message: IMessage = new AsyncMessage();
      message.body.chatMessage = msg.text;
      Producer.Send (message);
      Msg. Text = "";
      }
      
      private void messageHandler(message:IMessage):void
      {
      log.text += message.body.chatMessage + "\n";
      }
      
      []] >
      

      Pinch the nose, because it's the 'dynamic' line of Actionscript.  Virtually every class Object drift (http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/Object.html) which is a dictionary of key / value of property.  The {msg.text as an object, "chatMessage"} pair is created to the assignment.

      I'm fairly new to Flex/AS, and despite having not declare types is handy for a quick and dirty coding I try to avoid it in the production code... I've been bitten by a class of refactoring and not to catch all the places where it was referenced dynamically.  I do not know ago full for and against arguments there.

  18. Please describe the difference between a laptop computer and a laptop computer.

      I am looking for a new laptop, but many computers laptops HP possible are called laptops. Why? Is there a difference in functionality, features or options that make laptops instead of laptops?

      Hello

      Laptops and notebooks are the same. We used to call them laptops because we could put on our tours to work with. But now we call them laptops because not a lot of people put them on their knees, especially if you're wearing a mini skirt, it would burn your towers.

      Hope it makes sense.