I want to know if it is possible to restore my database without dump.
In fact, I had a problem with mysql on my debian 9 server. I uninstall debian and reinstate it. I lost everything but before uninstall debian, I saved ib_logfile0, ib_logfile1 and ibdata1 files and the database folder with the database name. There files and folder was located in /var/lib/mysql
I already tried to copy and paste the files and the folder on my new debian but it doesn't work...
Is it possible to restore the database with this 3 files and this folder (on the folder, there is .frm and .ibd files) ?
If you have the entire folder, then you effectively have the entire dataset. The two things that are elsewhere:
The MySQL code -- It would be wise to install the same version 5.xx.yy.
The config file(s) -- /etc/my.cnf (or wherever). You may have to reconstruct it. The one tricky setting (if you had changed it) is innodb_log_file_size.
I am not sure if there are other critical files in the directory other than the 3 files you mentioned.
Give it a try.
Related
I have 200 DBF files (related to Windows program) that I need to transfer their content to different DBF files that have the same names.. , i.e. file1.dbf content should be transferred to file1.dbf content from different folder, I need to do that for all 200 files. I can only find manual solution but its slow , I need to do it for all at once. The reason I need to do that is because the files have some protection or I don't get it, if I simply replace them the program will give error realated to db, other easier solution is welcome.
What really happened -
The files are used in accounting software. I have created the backup with backup function from the software, it was done daily automatically. Restore function is protected for free version. I can only manually restore the files, but the backup files work only on the exact software version as protection. The thing is that the software is 100% free as long as you don't update it, I didn't knew that until I selected the update menu option. Now the software is updated but it asks me for license key which is very expensive. I have the backup files, but as the restore function is blocked I can't restore it with the program. I can only replace the files myself from the backup , its a directory that is backed up. The problem is that it has some protection on files itself , they are not recognized but only if I manually edit the files with DBF Manager software, if I open a default software file and paste the content from backup file it works, but I have many files.Now I'm stuck with company documents locked not been able to access it
Thank you
I have mistakenly put my SQL data directory in the wrong folder and as such, the system DBs are located in the wrong directory, and hence, I want to move it to a different directory. I am going to move the data and log files for all my system DBs but I would like to know if it will move all the folders under MSSQL or do I need to perform some other steps as well? Please find below the folders that I can see under MSSQL.
In order to move system databases, not only you should move the files, but prior to it you should change their paths in system tables by using
ALTER DATABASE..MODIFY FILE
When moving master database you should also change the startup parameters in Configuration Manager, you should put there the new location of master files.
All this is described in Move System Databases article.
Note that if one day you'll need to rebuild your master, it will be put in the old location, so you cannot just get rid of DATA folder. And after rebuilding you'll need to move your system databases again.
This is to let you know the solution to my problem. I have successfully changed the data root directory by moving the data and log files for all the system DBs to the desired location.I also had to change the registry value for the SQLDataRoot directory to my desired location and modify the location of the server diagnostics file as per my cluster requirement. After all this, I have been able to successfully move the folder to the desired location. Thanks for all the help everyone.
I'm posting this rather odd issue here in the remote chance that someone has come across this before, or possibly just has an idea or two about what I could try or check next because I'm stumped.
Summary: SQL 2008 SSIS package tasks that attempt to create files with .zip extension fail with
"Access to the path is denied"
Detail: This first occurred in a test environment with a package that works fine in Dev (and Prod). The part that makes this problem odd is that it is all about the File Extension, not security. I mention this now to curb replies about checking the security (SSIS Account, Directory Level permissions etc.) :- it's not that, 100%.
So, I've built an SSIS package as a proof of behavior, that takes 3 files (a.txt, b.txt, c.txt) and respectively for
(a) uses CozyRoc Zip to Create a Zip,
(b) uses a script task to create a .zip (using GZipStream - I know this creates a GZIP not a ZIP but bear with me...) and
(c) native SSIS File System Task copies the file from c.txt to c.zip (yes, creating a .zip file that is not really a zip file).
All Three fail with the above message - the .ZIP files are created for (a) and (b), but remain at 0 length. (For (c) just the error message).
Now, I edit the SSIS package and change the extensions of the destinations (to .ZOP or .ZIP2 or .GZ or .ANYTHING), and all 3 work perfectly. And this is obviously how I know that it's the .ZIP extension not a "normal" security issue.
So I've initially assumed this is a one-off on this test server because it was the only place it happens, but I've found another box (build rehearsal) on which exactly the same problem exists. I've tried associating .ZIP with various different programs (Windows Explorer, WinZip, 7Zip, WinRar & "no program") and nothing works, and I've googled the problem to death with no luck yet.
I've tried creating .ZIP files with the various installed archive programs using their GUIs and they all work fine. Existing .ZIP files can be unzipped using CozyRoc. Existing .GZ (GZIP) files renamed to .ZIP can be unzipped using the script GZipStream decompress. And I can rename files to and from .ZIP using SSIS or Explorer/CMD. It's just SSIS (specifically SSIS) creating a file with extension .ZIP (specifically .ZIP) throws this error.
I'm starting to suspect it might have something to do with SSIS thinking that .ZIP is an archive "folder" not a ".ZIP File" but I don't know where to go with this idea, proving it or fixing it.
Any ideas at all? - at my wits end!!
Thanks in advance
P.S. The "obvious" answer of using .ZIP2 and renaming is not an option, there are (literally) hundreds of packages running in production that create .ZIP files and packages need to move from Test to Prod without modification. I really need a solution, not a workaround, in this instance if there is one.
This turned out to be a RedGate tool (HyperBac) having a file association with .ZIP extension files (amongst others). Hyperbac's monitoring of .ZIP files appears to have clashed with SSIS's attempt to write to the .ZIP file, as procmon reported shared file access violations, causing a spurious ACCESS DENIED error to be reported by the package.
Since use of the tool is necessary on our environments, I was able to solve the problem by deleting the .ZIP association using the GUI ("Hyperbac Configuration Manager" > "Extensions" > Ext=.ZIP, Delete)
On the server I need to upgrade the existing MODX installation so leave my folders and files intact while updating only those which are necessary. This is the message that was in the upgrade instructs: "Do Not Overwrite Directories! Make sure your FTP program merges directories and does not overwrite them!"
So the question is, when dragging folders from local to remote server, Cyberduck is asking me what I want to do but I don't see the option "merge" - there is only "resume", "overwrite", "rename" and "skip". How do I merge files?
From my experience, Cyberduck will actually merge the folders and files (replacing those that already exist) when you use "Replace" option.
I have the following problem and I need to know if there´s a way to fix it.
I have a client who was cheap enough to decline buying a backup plan for his postgreSQL databases on the main system that runs his company and as I thought it would happen some day, some OS files crashed during a blackout and the OS needs to be reinstalled.
This client didn't have any backups of the databases but I managed to save the PostgreSQL main directory. I read that the databases are stored somehow inside the data directory of the postgres main folder.
My question is: Is there any way to recover the databases from the data folder only? I am working in a windows environment (XP service pack 2) with PostgreSQL 8.2 and I need to reinstall PostgreSQL in a new server. I would need to recreate the databases in the new environment and somehow attach the old files to the new database instances. I know that's possible in SQL Server because of the way that engine stores the databases but I have no clue in postgres.
Any ideas? They would be much appreciated.
If you have the whole data folder, you have everything you need (as long as architecture is the same). Just try restoring it on another machine before wiping this one out, in case you didn't copy something.
Just save the data directory to disk. When launching Postgres, set the parameter telling it where the data directory is (see: wiki.postgresql.org). Or remove original data directory of the fresh installation and place the copy in its place.
This is possible, you just need to copy the "data" folder (inside the Postgres installation folder) from the old computer to the new one, but there are a few things to keep in mind.
First, before you copy the files, you must stop the Postgres server service. So, Control Panel->Administrative tools->Services, find Postgres service and stop it. When you're done copying the files and setting permissions, start it again.
Second, you need to set the permissions for the data files. Because postgres server actually runs on another user account, it will not be able to access the files if you just copy them into the data folder, because it will not have permissions to do so. So you need to change the ownership of the files to the "postgres" user. I had to use subinacl for this, install it first, and then use it from command prompt like this (first navigate to folder where you installed it):
subinacl /subdirectories "C:\Program Files\PostgreSQL\8.2\data\*" /setowner=postgres
(Changing ownership should also be possible to do from the explorer: first you must disable "Use simple file sharing" in Folder options, then a "Security" tab will appear in the folder Properties dialog, and there are options there to set permissions and change ownership, but I wasn't able to do it that way.)
Now, if the server service can't start after you start it manually again, you can usually see the reason in the Event viewer (Administrative tools->Event viewer). Postgres will throw an error event, and inspecting it will give you a clue about what the problem is (sometimes it will complain about a postmaster.pid file, just remove it, etc.).
The question is very old, but I want to share an effective method that I found.
If you have not got a backup with "pg_dump" and your old data is folder, try the following steps.
In the Postgres database, add records to the "pg_database" table. With a manager program or "insert into".
Make the necessary check and change the following insert query and run it.
The query will return an OID after it has worked. Create a folder with the name of this number. Once you have copied your old data into this folder, the use is now ready.
/*
------------------------------------------
*** Recover From Folder ***
------------------------------------------
Check this table on your own system.
Change the differences below.
*/
INSERT INTO
pg_catalog.pg_database(
datname, datdba, encoding, datcollate, datctype, datistemplate, datallowconn,
datconnlimit, datlastsysoid, datfrozenxid, datminmxid, dattablespace, datacl)
VALUES(
-- Write Your collation
'NewDBname', 10, 6, 'Turkish_Turkey.1254', 'Turkish_Turkey.1254',
False, True, -1, 12400, '536', '1', 1663, Null);
/*
Create a folder in the Data directory under the name below New OID.
All old backup files in the directory "data\base\Old OID" are the directory with the new OID number
Copy. The database is now ready for use.
*/
select oid from pg_database a where a.datname = 'NewDBname';
As shown by move database to another hard drive. All we need to do is to modify the registry table and file permissions. By modifying registry table(shown in image 1), postgresql server know the new location of data.
modify registry
If you have issues with permissions or with stuff like icacls during installation to old data folder then try my solution from sister website.
https://superuser.com/a/1611934/1254226
I do so but the most tricky part was to change the owner permission:
go to services from administative tools
find postgres service and double click on it
at log on tab change to local system
then restart