BLOB Clean up
Oracle 12 c
OS Linux.
As I understand it, in what concerns the storage of BLOB (such as image files or audio) data, only the reference to the BLOB is stored in the table, while the data itself is stored outside the table, somewhere in the file system of the server. Is this correct? If so, then I have a few questions:
(1) pourraient all those related to the view of database or change the BLOB data directly? This will pose a real risk to safety?
(2) the issue of removal:
When I run the "removal of the TABLE where row_id = 12345" command, will be the reference and the BLOB data deleted from the system, OR, that the reference will be removed, while the BLOB data will be left behind and I run scripts of cleaning using cron or some other tool of periodic planning?
Thank you
Scott
958303 wrote:
Oracle 12 c
OS Linux.
As I understand it, in what concerns the storage of BLOB (such as image files or audio) data, only the reference to the BLOB is stored in the table, while the data itself is stored outside the table, somewhere in the file system of the server. Is this correct? If so, then I have a few questions:
(1) pourraient all those related to the view of database or change the BLOB data directly? This will pose a real risk to safety?
(2) the issue of removal:
When I run the "removal of the TABLE where row_id = 12345" command, will be the reference and the BLOB data deleted from the system, OR, that the reference will be removed, while the BLOB data will be left behind, and I need to run the scripts of cleaning using cron or another recurring planning tool?
Thank you
Scott
https://docs.Oracle.com/database/121/ADLOB/adlob_smart.htm#ADLOB4444
BLOBs are stored in the database (still technically on disk, but not in the sense I think mean you in your question).
BFILE is stored on the file system (the database stores a pointer to the file).
https://docs.Oracle.com/database/121/SQLRF/sql_elements001.htm#SQLRF0021
"
LOB (large Object) data types
Integrated LOB data types BLOB
, CLOB
, and NCLOB
(stored internally) and BFILE
(stored externally) can store large and structured data such as text, image, video, and data space. The size of BLOB
, CLOB
, and NCLOB
data can be up to (232-1 bytes) * (the value of the CHUNK
parameter of LOB storage). Storage in your database are standard block size, so if you have used the value by default to the CHUNK
LOB storage parameter when you create a LOB column, then this is equivalent to (232-1 bytes) * (database block size). BFILE
data can be up to 264-1 bytes, even if your operating system may impose restrictions on the maximum.
"
See you soon,.
Tags: Database
Similar Questions
-
About 3 weeks ago before making the error msg above, a large black ink blob appeared on my printed piece of paper. This product for several sheets later, but kept decreasing in amount. I continued to print & finally all traces of ink have disappeared. 2 days ago I got a msg of error on "load plain white paper. ", but the paper tray was plain white paper in it. I have removed the paper, straightened and her successor. As a result, the msg "Alignment failed" appeared. I went through all the steps HP online information on the treatment of the "alignment failed", including the cleaning of the printheads (the right amount of ink was on it), check the vents of cartridge, etc. My question is: if I have 4 out of colored inks and a new black ink installed, the alignment is being affected by the old cartridges? A msg on this appeared on the Control Panel, giving the opportunity to proceed with the old cartridges or install new ones, but be careful that it "cannot allow completion of...» "If 'old' were replaced not. I need to replace these color cartridges or is it probably another problem, which is print head damaged?
Checked the evacuation & there is no problem, so I tried the informal solution to put the printhead in hot water. A ran 1 cleaning via / configuration on the printer and finally aligned with success tools. I waited a while to respond because I wanted to see if the printer should continue to work, and there!
Thank you very much. I'm happy that I can keep this printer!
-
Photosmart A716 Photo Printer INK BLURRED, JUST BLOB WET INK ON PICTURES
We used this printer for about a year without this problem, all of a sudden, the photos are versions of just blurry blob of the actual photo. It is possible to do in the photo, but the ink is super humid and fuzzy with a halo in overall effect. they are horrible and useless. We have realigned, clean the ink cartridge, print several different photo even sessions on different cameras and it's the same thing. The problem certainly lies in the printer. It is more under warranty and they help me without charge. Any ideas?
Sounds like a build up of residue of ink and paper on the rolls.
-
ADF 11 g R2, ADF BC
Hello
I have a file uploaded to the DB as a column of type blob.
Now, I'm trying to download it.
I followed the smuen' example of "not yet documented" sample #85: code like:
package olfms.view.backing;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
Import javax.faces.context.ExternalContext;
Import javax.faces.context.FacesContext;
Import javax.faces.event.ActionEvent;
to import javax.servlet.http.HttpServletResponse;
Import olfms.view.util.EL;
Import oracle.adf.view.rich.component.rich.data.RichTable;
Import oracle.binding.OperationBinding;
Import oracle.jbo.Row;
Import oracle.jbo.domain.BlobDomain;
Import oracle.jbo.uicli.binding.JUCtrlHierNodeBinding;
Import olfms.view.util.MimeTypes;
public class downloadBean {}
private richeTableau t2;
public downloadBean() {}
}
public void setT2 (richeTableau t2) {}
This.T2 = t2;
}
public richeTableau getT2() {}
Return to t2;
}
public void onDownload (FacesContext facesContext,
OutputStream outputStream) throws IOException {}
F = JUCtrlHierNodeBinding
(JUCtrlHierNodeBinding) this.t2.getSelectedRowData ();
Line = f.getRow ();
File BlobDomain = (BlobDomain) row.getAttribute ("StoredFile");
String fileName = row.getAttribute("FileName").toString ();
ExternalContext extContext = facesContext.getExternalContext ();
Length = file.getLength ();
String fileType = MimeTypes.getMimeType (fileName);
HttpServletResponse response = extContext.getResponse () (HttpServletResponse);
response.setHeader ("Content-Disposition", "attachment; filename =------"" + fileName + "\" ");"
response.setContentLength ((int) length.intValue ());
response.setContentType (file type);
InputStream in = file.getBinaryStream ();
OutputStream out = response.getOutputStream ();
Byte [] buf = new byte [1024];
int count;
While ((count = in.read (buf)) > = 0) {}
out. Write (buf, 0, count);
}
in. Close();
out. Flush();
out. Close();
facesContext.responseComplete ();
OperationBinding = refresh
(OperationBinding) EL.get ("#{bindings.") Execute1}");
}
}
Whats happening is the first time I click on the name of the file, the file is downloaded from the database correctly. But if I click on the same file again, only the empty file that I get. What happened to this problem. Thank you!!!
have resolved to add the line. "file.closeInputStream ();"
Published by: xsyang on August 2, 2011 02:16After closing the input stream, call
... in.close(); out.flush(); out.close(); file .closeInputStream(); ...
to clean the BlobDomain.
Timo
-
Sierra / Mac Adware Cleaner
Since I've upgraded to the new OSX on my iMac, what an advertising program keeps popping up whenever I log on my computer. I tried to remove it, but it always comes back.
It is very inconvenient for my mac was going well until I upgraded. What is c? And once I left the application a pop-up ad appears in the right corner.
How can I get rid of these?
That Mac has been affected by "CleanMyMac" that must be removed. Remove it, then follow the applicable recovery procedure below.
'Cleaning' apps are scams. Extract of effective defenses against software malware and other threats:
- Never install a product that claims to 'clean up', 'speed', 'optimize', 'boost' or 'speed up' your Mac; to "wash", "tune" or to make it "brilliant". These allegations are absurd.
- These products are marketed very aggressively. They are all scams.
- They usually operate on the erroneous premise that Mac builds 'junk' that must be systematically 'cleaned' for optimum performance.
- Trial versions of these programs are successful because they provide more instant gratification of free space on the disk.
- This increased space is the result of irreversible destruction of files, programs or operating system components normally protected against accidental tampering or removal. The eventual result will be the reliable operation, poor performance and random crashes that may not become evident for months, or even years after their use, when updates of programs or OS X are finally released.
- Memory "cleaners" that bypass the work of OS x memory management algorithms by purging the memory contents inactive for mass storage, which can only result in performance degradation and accelerated the hardware failure.
To remove 3 CleanMyMac itself, use its Uninstall module, followed the following additional steps:
Delete the file ~/Library/LaunchAgents/com.macpaw.CleanMyMac3.Scheduler.plist
- To access this file, copy and Paste the following line in the menu to go to Finder > go to folder...
~/Library/LaunchAgents/
- Locate the following file and drag it to the Trash:
com.macpaw.CleanMyMac3.Scheduler.plist
- Then, open (menu Apple) > System Preferences > users and groups > login items.
- Select the item of Menu of CleanMyMac3
- Click on the [-] (button less).
- Restart your Mac.
Beware that reinstall OS X has no effect on deletion CleanMyMac or reverse the damage, it is able to inflict on a system. To recover from the effects of using it to change the OS X software, you need and essential files you need, follow the applicable recovery procedure below:
- If you have a backup that you created before using CleanMyMac, now is the time to use it. To boot OS X RecoveryTime Machine in Mac OS X utility screen, select restore from a Time Machine backup. Choose a date prior to the installation of CleanMyMac.
- If you don't have a backup previous use of CleanMyMac, create one now. To do this read to use Time Machine to back up or restore your Mac.
- The recovery procedure require that you erase the Mac using OS X Recovery, and then create a new user account whose content will be empty. You can then use Setup Assistant to migrate your essential documents, including photos, music, products of work and other essential files.
- To erase and install OS X read How to reinstall OS X on your Mac.
- Follow step 2 to completely erase the internal memory of the CMA: disk utility (El Capitan): delete a volume.
- Then follow the procedure to move your content to a new Mac.
- When asked how you want to transfer your data, select transfer from a Mac, Time Machine backup or boot disk.
- Under Select the information to transfer, select only your old user account and do not select 'Applications', 'Computer and Network Settings' or 'other files and folders. Deselect these choices.
- After using Setup Assistant, you will need to reinstall the essential software that you might need, once more without forgetting to install the software from their original sources and by omitting all non-essential software.
- "Non-essential software" is a broad category that includes, but is not limited to the products 'antivirus' third party 'cleaning' and 'maintenance '.
- Never install a product that claims to 'clean up', 'speed', 'optimize', 'boost' or 'speed up' your Mac; to "wash", "tune" or to make it "brilliant". These allegations are absurd.
-
My macbook air 13 "(2015) is very slow, even after a clean install"
Hello
I have a macbook air 13 "from 2015 and it is VERY slow. I did a clean install from scratch of El Capitan (10.11.06) and always very slow.
Etrecheck give ' "Performance: poor"»
Is there a hardware problem? or what to do?
Thank you
EtreCheck version: 3.0.6 (315)
Report generated 2016-10-05 10:18:11
Download EtreCheck from https://etrecheck.com
Duration 17:11
Performance: poor
Click the [Support] links to help with non-Apple products.
Click [details] for more information on this line.
Problem: Computer is too slow
Description:
too slow
MacBook Air (13 inch, early 2015)
[Data sheet] - [User Guide] - [warranty & Service]
MacBook Air - model: MacBookAir7, 2
1 1.6 GHz Intel Core i5 CPU: 2 strands
8 GB RAM not extensible
BANK 0/DIMM0
OK 4 GB DDR3 1600 MHz
BANK 1/DIMM0
OK 4 GB DDR3 1600 MHz
Bluetooth: Good - transfer/Airdrop2 taken in charge
Wireless: en0: 802.11 a/b/g/n/ac
Battery: Health = Normal - Cycle count = 40
Intel HD 6000 graphics card
Color LCD 1440 x 900
OS X El Capitan 10.11.6 (15-1004) - since startup time: less than an hour
SM0128G SSD APPLE disk0: (121,33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) < not mounted >: 210 MB
Recovery HD (disk0s3) < not mounted > [recovery]: 650 MB
Macintosh HD (disk 1) / [Startup]: 120,10 (Go 104.05 free)
Storage of carrots: disk0s2 120.47 GB Online
Apple Inc. BRCM20702 hub.
Apple Inc. Bluetooth USB host controller.
Apple Inc. Thunderbolt_bus.
Mac App Store and identified developers
[no charge] 6 tasks Apple
tasks of Apple 166 [loading]
[running] Apple 58 jobs
[killed] 9 tasks of Apple
9 killed process lack of RAM
[no charge] 47 Apple jobs
[loading] 158 jobs Apple
[running] Apple 77 jobs
[killed] 8 tasks of Apple
8 killed process lack of RAM
[loading] com.macpaw.CleanMyMac3.Agent.plist (2016-10-04) [Support]
[loading] com.bittorrent.uTorrent.plist (2016-10-04)
[loading] com.macpaw.CleanMyMac3.Scheduler.plist (2016-10-05)
iTunesHelper program (/ Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
uTorrent program (/ Applications/uTorrent.app)
CleanMyMac 3 Menu program (/ Applications/CleanMyMac 3.app/Contents/MacOS/CleanMyMac 3 Menu.app)
Default browser: 601 - SDK 10.11 (2016-09-03)
QuickTime Plugin: 7.7.3 (2016-07-09)
None
Time Machine not configured!
14% WindowServer
4% kernel_task
0% SystemUIServer
0% cloudpaird
Top of page process of memory: ⓘ
670 MB kernel_task
Mdworker (11) 188 MB
Com.apple.CommerceKit.TransactionService (2) 41 MB
Finder 41 MB
Mds_stores 33 MB
5.02 GB of free RAM
2.98 used GB RAM (1.82 GB being cached)
40 MB used Swap
5 October 2016, 09:38:39 test - passed
Hello, have you tried to reset the management system (SCM) controller on your Mac - Apple Support?
-
What restoration brings back old bags in the device? I was always told that icloud restoration brings all the bugs back, yet care apple lately told me than vice versa. I'm lost in a cleaner for restoration of backup: icloud or itune?
I've never heard a backup report bugs, however if you are interested in, you can always restore the device as good as new.
-
A problem so that macOS installation Sierra cleaning!
Hello.
I tried to perform a new installation of macOS Sierra on my MacBook Pro (15-inch, mid 2010), but whenever I do, I get a message (only during the last minute of the preparation for installation) saying, "the Office Installer signature verification failure. If someone please tell me what this means and how to fix? I would be grateful!
Either way, I previously successfully installed OSX previous versions on my MacBook Pro and all installations went smoothly and without problems. macOS Sierra is clean-installed successfully on my iMac (27 inch, mid-2011)!
Generally, this means that something is damaged in the installation image.
Try to download the installer again.
-
If I do a clean install, I have to reinstall all my software
Hello!
Filipe my name is
I have a MacBook Pro 2010, which is compatible to install the Mac OS Sierra
It is very slow and I would like to do a clean install of the operating system new
I know that I have to do a full backup of all my data - photos, emails, documents,... - but if I take the decision of the new facility, I have to reinstall all my applications, programs,... - as Office for Mac,...?
Thanks for your response!
Only, or restore from backup.
(144882)
-
How to clean my iPad to have more space for the future. I don't know how to clean?
Use this iPad for five years.
I would like to clean.
Any help!
Brij
What follows has a few recommendations: http://www.macworld.co.uk/how-to/iphone/19-tips-make-space-on-iphone-how-clear-s pace-on-iphone-3524712 /
-
Adobe CC is tested on Sierra?
Sierra will work, but not all the bells and whistles on a 11 first Macbook Pro?
That of El Capitan can be installed without it is available on the Mac App Store?
Y at - it a link to a clean, fresh and full installation current of El Capitan available anywhere?
(Rather than install and perform updates?)
What is suggested for a 11 first owner Macbook Pro who wants to run Adobe CC on the current material and wants to install a new os before installation of Adobe?
Y at - it a link to a clean, fresh and full installation current of El Capitan available anywhere?
(Rather than install and perform updates?)
If the installation program is still available, it will be to the latest version. No updates (no updates) would be necessary. He would install 10.11.6.
Look under your "Purchase" tab for the El Capitan software.
CC Adobe will install on any version of Mac OS X.
-
I have an Imac8, using OS X el capitan, 24 ", realized in 2008. Get pop-up windows from: Advanced cleaner Mac and Mac Adware Cleaner. Are they those recommended by Apple? These come from Apple?
No, they are not, they are horrific scams and are not in any way recommended by Apple - what made you think they were?
Frequent jump - rises as it says have adware - try to do a scan with Malwarebytes: http://malwarebytes.org/antimalware/mac.
-
Install a cleaning is necessary for OS Sierra?
Install a cleaning is necessary for OS Sierra?
N ° it has been my experience that the so-called 'clean' install is a complete waste of time.
-
Police to Explicit / clean up tags in iTunes for Windows (12.5.1)
I noticed that since the last update for iTunes (Windows), version 12.5.1,, instead of the full "Clean" and "Explicit", iTunes displays words only the letters 'C' and 'E' for podcasts, and the police they have chosen makes it very difficult to distinguish two letters. (I have normal vision). The Center bar for the E basically does not appear unless I'm watching very closely.
I am on Windows 10, displaying 1920 x 1280, with applications and fonts to normal size (100%), and I don't want to have to resize my screen because of a single program. Is it possible to have it display the full words?
I suggest that inform you Apple iTunesfeedback.
TT2
-
I spent hours on web sites looking for advice clean my iMac - they were all dead ends. I send a question to this 'Community' first, but must have done it badly because there was no trace of it. I now have the beach on this computer ball effect. Are there places I can delete cookies etc to help out? Thank you for your help.
horse8905
Don't know what's happening, you do not give a lot of information, but if you have the constant beachballing (spinning wait cursor), which could mean that the hard drive is dying.
Open Console.app in Applications > utilities. Filter, called "String Matching," right, high enter "I/o" without the quotes. What happens when you do this?
Maybe you are looking for
-
FIrefox looks hideous after patch 29.0.1
Hello. I do compelling evidence on purpose, but indeed I am a little angry for my safety and cosmetic updates should not be mixed. In addition, FF first call me is its customization possibilities. Offense so when a 'security' automatic update changes
-
y510p: should I install windows 8.1 and other issues
so, I now own (soon) the idea of a y510p pad and my plans where upgrade them to windows 8.1 since its average a lot and I have much better than 8. However I have beem hearimg performance drops and major problems during the upgrade to 8.1 is always ar
-
Slow down the WIN XP Pro desktop icons
Hello For some time, when I turn on my Windows XP Pro desktop computer, all icons appear on the desktop in their generic form (squares with dots of color on the inside). Then, one by one, the icons change very slowly, to their shape. No idea how to s
-
I have problems to windows and Microsoft Update sites. I can't download updates without them having stopped by the 0x8024400A error message. I turned to microsoft Fix it automated repair and told me to go to the updates and download service pack 3 an
-
ThinkPad Helix - down does not work
The gesture of "sweeping down from the top" does not work in any application of metro/modern Windows 8. Can I close an application by dragging it down with the mouse, but sliding down with my finger on the screen does nothing. Anyone else experienced