For example, i made a backup of pdb and i need to restore pdb at this state to another cdb.Is it possible,and how can i make it if it is possible?Not using clone pdb.
The docs don’t explicitly say it is possible in this combination. What the docs do tell is that a backup based clone is always valid.
The reason why many choose for live db clones is that there is less hassle with shared storage for the backup.
Related
Is it safe to clean out the contents of the C:\ProgramData\firebird
folder, i.e. wipe it, when the Firebird service (superserver, v3.0) is not
running?
I understand that it contains lock tables etc. so should not be touched
while FB is running. But it's not clear to me if it can be wiped safely
when FB is not running, or if it contains data that can be vital when FB
starts up again.
My situation is that I'm migrating a VM with an FB installation.
Migration has been done like this, due to practical reasons (uptime vs.
file transfer & VM conversion time):
Snapshot of source VM, i.e. nightly backup is copied to new location.
Source stays up and running. Copy process takes about 1 day. (We have the databases locked with nbackup when nightly snapshot is taken).
Snapshot is unpacked at target location, converted from VMWare to
HyperV and brought online for additional reconfig and system testing.
A few days pass.
Both source and target Firebird services are stopped, so no database
activity is going on anywhere.
Sync files from source to target, including database files. This file
transfer is much smaller then in step 1 so it can be done during offline
time.
In step 5 I find diffs in the C:\ProgramData\firebird folder, and I'm
wondering what would be the best approach:
A) Wipe the folder at target.
B) Sync so target has the same content as source.
C) Leave target as is.
Please note that when FB service is started again at target, the
database files will be identical with those at the source at the time of
FB shutdown, and probably won't "match" the contents of
C:\ProgramData\firebird at target. I would assume that this fact rules
out option C).
The files in C:\ProgramData\firebird are only used during runtime of the Firebird server and contain transient data. It should be safe to delete these files when Firebird is not running.
In other words, when migrating from one server to another, you do not need to migrate the contents of C:\ProgramData\Firebird.
I'm using duplicity to the backup web project.
There are three different places that handling by duplicity: storage, DB, and system settings.
I want actually to stop backing up storage and left two others.
So the question is how can I know which cache files related to storage backups and is it safe to delete them (or whole duplicity cache folder), as it takes too much space
UPD:
I've move cache to the new place and change path to cache in configs, after that made few test runs to make that all work fine. Then I've removed an unneeded folder and all the rest backups still work. So it's definitely safe to move/delete cache folder
generally, yes it should be safe. but as we are talking backups, how about safety first?
simply move the folders out of the way,
redo the backups you want to continue (observe the "newly" created folder name under cache)[1]
do a verify to make sure you can restore everything
on success you may delete the old cache folders
done.. ede/duply.net
[1] cache folder name should be a md5 hash of the target url -
http://bazaar.launchpad.net/~duplicity-team/duplicity/0.8-series/view/head:/duplicity/commandline.py#L112
unexpected Crash of windows took place. I dont have a metadata backup. After reinstalling windows i have taken the old database folder back up which has all
system01.dbf
sysaux01.dbf
undotbs01.dbf
Temp01.dbf
users01.dbf
redo01.log
redo02.log
redo03.log
Please share your recommendations to go forward.
Easiest option is to install Oracle with the same version as the old one, create a database with the exact same name as the old one and at the exact same location as the old one.
Once you have that working, shut down the database. Then copy your backup files over the new files. Start the database.
A delete . was executed on the folder containing a HSQLDB. The only file which was locked by the system (and thus not deleted) was the database.data file. Is it possible to recover the database from this file alone?
If the delete was done within the BuildServer directory itself and not specifically within the BuildServer/system directory you are out of luck since all the builds and their build step configurations are stored within BuildServer/config/projects.
The Database only stores build logs, changes, users and etc. but not the actual config. They are all XML based configs on the file system.
If the delete was done within BuildServer/system you may be able to start up a clean TC Instance to rebuild the BuildServer/system directory and then shut it down. Once its down switch out the buildserver.data files and bring it up again. (Trying to do this now but its taking forever to start up. If I find out more I'll edit).
How do I move a .sdf file into my isolated storage and after I have moved it is there a way to delete it as it is of no use. I have added my .sdf file as a content in my project.
Your question is not very clear, but let me see if I get this. You created a database, added it to your file as content to your project so that you can have all the data present when the user installs your app. Then you are copying the data from the read-only .sdf file into a database that you are creating on first run, so that you can read/write to it. Correct?
If so, I do not believe there is a way to delete the read-only file that you included with the install.
If your database is large enough that you are concerned about the space it will take by having two copies of it on the phone, I would suggest placing your data on a server, creating a web service, and access that web service on first run. Place a notice on the screen that lets your user know that it is downloading information that will only be downloaded once, and that subsequent launches will not take as long. Be sure you include code to prevent a problem should the download be interrupted by a phone call, text message, back key press, start button, or other event. Make it be able to continue the download if it was interrupted in a prior run.
To answer your question, .SDF is a format of Microsoft SQL Server Compact (SQL CE) databases. The link you have pasted talks about SQLite databases.
This the way to download the entire Isolated Storage onto your device.
Open cmd and go to the following directory
C:\Program Files\Microsoft SDKs\Windows Phone\v7.1\Tools\IsolatedStorageExplorerTool
then use the isetool.exe to download the Isolated Storage along with the .sdf file onto your machine.
isetool.exe ts xd [Product_id_here_see_WMAppManifest.xml] "D:\Sandbox"
You should get message like download successful into D:\Sandbox.
You can also upload the sdf by changing the argument ts with rs