Why oracle stores no length for CHAR, VARCHAR2, and other types?
Hi friends,I was reading a book by Tom Kyte on the types of character data.
+For character strings,Oracle will have a leading length field of 1 to 3 bytes, or when they are NULL they+
+will be represented by a single byte value of 0xFE.+
+If the length of the string is less than or equal to 250, Oracle will use 1 byte for the length.+
+All strings exceeding 250 bytes will have a flag byte of 0xFE followed by 2 bytes that represent the length.+
Can someone explain please why Oracle shops length here and where exactly is - it used by Oracle?For strings longer than 250 bytes, it sets a flag to 0xFE byte. What is the usefulness of this indicator byte and how is it useful?
Is there anyway we can see the length bytes that are stored by Oracle? I tried with the DUMP function, but it is to show that the value of the length, but not the bytes it stores for her.
Kind regards
Anthony
I think that Oracle chose 0xFF to represent a null value
(a) Yes
(b) should be 1 as another column can follow
Concerning
Etbin
Tags: Database
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Note to moderators:
956056 please don't report abuse on the positions that are not abusive.
Just because you don't like an answer does not abuse. People just make a point that you did not provide sufficient information so that they are able to help you.
You have been informed to read the FAQ forum: Re: 2. How can I ask a question on the forums?
Yet, you have not yet filed your code. (and just the display of variable declarations is not code that does not).
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Hello
PowerCLI - there cmdlets to browse the store of data for files/directories and their creation?
If Yes, can you please let me know.
I took a glance at the reference of the cmdlet, but can not find...
Kind regardsDreamer
You can use the data store provider.
It is documented in the vSphere PowerCLI Administration Guide that was installed with PowerCLI.
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Why some youtube videos run for a while and then freeze in firefox
HI I have a problem with the firefox browser lasted. You see when I go on this site to watch a video witch is through video youtubthe will play for a little bit, then it will freeze but will continue to play the audio from the video, but the video is still frozen. I went in firefox and I went to tools and under privacy where it says clear recent history and I put a check mark to clear wrestled, cookies, Web site preferences and press the button continue. Then I went back to the site and yet once again, I did try and watch the video of youtube with the same problem, as described above. So I uninstall Adobe flash player and shockwave player and re downloaded times flash player and shockwave player and reinstalled them again. It doesn't help that the youtube video keeps freezing and the audio keeps time even when the video freezes in firefox.
Edit: I was wondering your antivirus cause videos to youtube to freeze.Help would be appreciated please.
some info that may be useful
Firefox 36.0
8.1 Windows 64-bit operating system
Free avast 2015.10.0.2208Hello
Try these tools that can help solve your problem. Sometimes the video loads slowly according to your subscription from your network provider network speed.
Refresh (called "Reset" in older versions of Firefox) can solve a lot of problems in restaurant Firefox as his default factory while saving your bookmarks, history, passwords, cookies, and other essential information.
Note: When you use this feature, you will lose all the extensions, toolbar customizations, and certain preferences. See article Firefox Refresh - reset modules and parameters for more information.
Refresh for Firefox:
- Open the troubleshooting information page using one of the following methods:
- Click the menu button
click Help
and select troubleshooting information. Should open a new tab containing your troubleshooting information.
- If you are unable to access the Help menu, type Subject: support in your address bar to bring up the troubleshooting information page.
- Click the menu button
- At the top right of the page, you should see a button that says 'Refresh Firefox' ('reset Firefox' in older versions of Firefox). Click on it.
- Firefox closes. Once the update process is complete, Firefox will display a window with the imported information.
- Click Finish and reopen Firefox.
This corrects the problem? Please report to us!
Thank you.
- Open the troubleshooting information page using one of the following methods:
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By clicking several times for switching Applications and other problems of Click
I would like to know when it started, because then maybe I could narrow it down. I have actually some problems, but I strongly suspect that they are related. I do not think that this started immediately when I upgraded to El Capitan, but I can't say when it started.
1. If I Mail to Safari and I click on Safari to bring it forward, nothing happens. If I click a second time, then Safari comes forward. The problem is not limited to these two requests. Maps, Finder, TextEdit and others do, but it doesn't happen in all cases. For example, if I click on a TextEdit window it before now, but if TextEdit is in front, the other application is not until the second click.
2. If I double-click a file or application in the Finder, it tries to open the point three times. This usually results in two dialog boxes telling me that the application cannot be opened because the third opens.
3. I have my user folder and disk in my dock to quickly navigate to a specific folder using the grid. However, when I click on an item in the grid, the icon blinks but nothing happens and the view disappears, won't let me choose something or drilling to the location I wanted.
What I tried
A different user account - another user account, all right. It tells me that the problem is at my user account level and not at the level of the system. It's good, almost.
Connection with the elements of wide opening (SHIFT key is pressed) - This resulted in no change in the above problems.
Watch the Console - I ran the Console to see if all the messages when problems occurred. Zip fastening. Zilch. Nada.
What I think
I am sure that this is a problem with an article by third party due to the fact that it happens to other users on the same computer, but since this is not an element of connection, so I'm stumped on how to refine the problem down to find the cause.
Does anyone have any suggestions?
Okay i ' l jump to... Maybe you're more think it is a little. Have you tried another mouse or trackpad, then a reboot before going too far into other possible problems?
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Hello.
I have a question about how to select the type of user account for each user account.
I read that if I type 'control userpasswords2' term, it will bring up a window of hidden user accounts. In this window, select a name of the user account and click property, click on membership group and it will show all the type of account you can purchase (including the standard user, restricted user, the other who has many other types)
Here is the link I read
http://www.exnol.com/globally-control-and-change-all-users-passwords-in-Windows
Let's say my computer is XP pro and it is in the home (not domain joined ) working group. Am I able to set these types of accounts to my user account using 'control userpasswords2' just as I explained above?
I was wondering because I read in the microsoft help article or somewhere that it indicates that the computer must be on the field to be able to choose the type of account by using this process, I explained, and one account type you can choose where your computer is located in the Working Group's account admin or limited using the control panel then click on accounts of users... but other said it should not be on the field... I got confused.
I would like to try it myself, but I don't have XP pro computer with me right now, I'd appreciate it really if someone could help me with the answer.
Hi greenyy,
If you are the administrator of the machine Windows XP Professional, you can use the command 'control userpasswords2' and access the list of user accounts and change the type of account.
You need not necessarily be on a domain, however, it may not work for some types of user accounts on a working group.
A test, you can try to change the type of account for user accounts & check if it works.
Reference: To change the type of user account
Hope the helps of information. Please post back and we do know.
Concerning
Joel S
Microsoft Answers Support Engineer
Visit our Microsoft answers feedback Forum and let us know what you think. -
Currently, my PC is customized with Windows 7 Professional and sports a Phenom II x 6 16 GB of DDR3 Ram and a GeForce 470 GPU, PSU. I used to about 7200 RPM disk drives, as well. Mainly, I use it as a staff, games AND work computer, but now I have a job and macbook pro staff, and now with Adobe CC and GPU acceleration I hope to tune more finely to be a rendering engine. I would like to also keep my ability to play the games of the most recent and - running on Ultra isn't a necessity, but it would be nice to have the ability to push my system to the same graphics.
I own almost all the plugins video CoPilot, and 3-d element and optical flares use GPU acceleration. I also use Premiere Pro to a lot of editing and I love makes it fast, and I hope to someday add Cinema 4 d or 3DS Max to my software. I want a GPU that can give me a few makes incredibly fast while allowing me to play at a decent rate. My budget is probably around $1000 for a complete overhaul, but I could see myself growing a little more high if she was worth.
I look at the cards GeForce GTX 750 series (probably the 760 or 770) for graphics, but I'm torn between making the jump to a Quadro 4000. I don't think that the 5000 is in my price range, and I don't know that the 4000 would be perfect for my needs. My main question is essentially... What kind of differences is what I see in the 3-d element and other features of After Effects between these two cards? Therefore, can what kind of differences I expect to see everything by using programs like 3DS Max or Cinema 4 d? Finally, what first seems to me?
I know AE mainly use multicore, so I'm looking to the quad-core i7 4950 my processor. I was AMD, but after seeing it in action on many products of Adobe through my MacBook, I'm starting to think it might be worth the extra money to get an Intel processor. Therefore, as the 3D rendering is not my main goal, I'd like something that can give me a pleasant experience using plugins that are WHAT GPU accelerated - mainly plugins Red Giant and VCP - allowing me to play games.If this proves to be a choice between play and work, I guess an alternative solution could be put my old parts in a second case and have a gaming pc, then a working pc. That's fine with me.
Thank you for any input!
Katie
After Effects will be no acceleration of a GPU. Learn more: features GPU (CUDA, OpenGL) in After Effects
3-d element could be able to handle larger and more complex models with a more powerful card, but I doubt that the Quadro difference would be a price difference.
C4D uses very little GPU.
Spend more on a processor more in addition to RAM would make you better than a GPU. If you build a computer for After Effects and first, I strongly recommend to Watch this presentation.
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Why App Store is down for my payments?
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Oracle SOA Suite - mediator for Protocol switching and limitation of
Hello
I tried to get the exact answer on the internet and also in the Oracle Doc, but in the oracle doc also what is written "Compatible transport protocols, including e-mail, FTP, HTTP (S), file and JMS" but the full list of supporting the Protocol do not receive even for Ombudsman in SOA Suite also.
can someone please respond to these requests.
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or mediator provide switching protocol but have limited options for Protocol against the OSB (OSB stand verity of the Protocol)
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Thank you
Customer reviews...
Q1. Ombudsman dose provide Message even as the OSB dose limitation?
-No, the mediator has Message limiting feature compared to the OSB.
Q2. Ombudsman dose allow protocol for example SOAP at the REST or JMS with MQ etc even as the BSO?
or mediator provide switching protocol but have limited options for Protocol against the OSB (OSB stand verity of the Protocol)
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Q3. Please tell me what protocol are supported by the Ombudsman and which are supported by OSB
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Kind regards
Sandeep
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Thank you.
I'm not a student, and I don't know why it says that.Hi catswalkjpgr,
Welcome to the HP forums!
You have a 2514 Deskjet you would like a manual? I can certainly get you a link to the manual for the Deskjet 2510 series
The manual of your printer is accessible by clicking here: series all-in-one HP Deskjet 2510
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I have also included a statement from one of my previous posts just for those who may be reading and the question.
Windows 7 will the have same backwards compatibility with programs that Vista has. Which means that if the program or game is old (XP before or at the beginning) the chances are that it will not work.
Windows 7 includes some versions of virtual XP which will allow you to run old XP programs in a virtual XP machine.
If you include Virtual XP, Windows 7 will be able to run all XP software without problem. Don't forget that you will need to have the right hardware to use virtual machines such as Virtual XP very well.see you soon
I have a simple philosophy: just assume everyone is a piece of _ and then be pleasantly surprised if you find someone who is not. -
specific system files missing for example rundll32 and others.
What should I do to fix this? The recovery partition is inaffective to restore the missing files. Each application that is to be opened is met, what program you want to use to open this?
Hello
Try running click Start-> Run & Type-> SFC/scannow
Reference: http://support.microsoft.com/kb/310747 for more information.
I hope this helps.
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To sort music between library computer and Media Player? How pay you the difference? I download music from Windows Media Player, but some files go to the library of the computer and do not show up in Media Player...?
Hi Phoenixshadows1956,
The music, videos and pictures libraries windows point to the files that store the files of real media on your computer. The Player library simply contains links to multimedia files, but gives you greater control of how you organize and use your digital media content than the Windows folders do.
http://Windows.Microsoft.com/en-us/Windows7/Windows-Media-Player-library-frequently-asked-questions
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http://Windows.Microsoft.com/en-us/Windows7/customize-a-library
You can use Windows Media Player Library to organize your entire digital media collection on your computer, including music, videos and photos. Access the link to learn more about how to manage and add items to the Windows Media Player library.
http://Windows.Microsoft.com/en-us/Windows7/add-items-to-the-Windows-Media-Player-library
To remove items from the Windows Media Player library, access the link below and follow the steps.
http://Windows.Microsoft.com/en-us/Windows7/remove-items-from-the-Windows-Media-Player-library
You can also useWindows Media Player to quickly find and play your music, video and image files on your computer.
http://Windows.Microsoft.com/en-us/Windows7/find-items-in-the-Windows-Media-Player-library
Hope this helps and let us know the result.
Thank you and best regards,
Srinivas R
Microsoft technical support.
Visit our Microsoft answers feedback Forum and let us know what you think.
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