I have one database. And daily have backup. The database postgreSQL. Now the backup every day download the whole database. But i like to only update the already backuped file ( only the changes add to the already downloaded database ) not download always the whola database again, again, again. That is possible? If yes how? If not, have any option to do different way?
I use PG-Admin. DBeaver 7.1.3.
Many thanks!
Related
It is know fact that backup and restore is a slow in Postgres
I'd like to deploy database to PostgreSQL server as fast as posible (Like it is possible in MS SQL just file copy and attach).
So If I:
backup and restore schema only.
And than copy database oid folder (data files) in to the appropriate oid ?
Will it work?
of not what I also need to be consider.
No, that won't work.
A database backup and restore can never be faster than copying the files is. So stop the database, copy the complete cluster and start PostgreSQL again. It won't get any faster.
I have a database that seems to be broken for some reason. It's a development db for rails so I don't have a backup but I do need to continue development. I tried to just drop it but that's not working.
$ dropdb "database-name"
dropdb: database removal failed: ERROR: could not open file "global/2964": No such file or directory
Thanks in advance for any help!
There's more wrong here than a "broken" database. Something is badly wrong with your PostgreSQL data directory.
global/9264 looks like it's pg_catalog.pg_db_role_setting, which stores ALTER DATABASE ... SET ... and ALTER ROLE ... SET ... settings. This is not database-specific, it's a global table.
If you have missing files in your data directory your whole PostgreSQL data directory is probably damaged. You should back up what you can, if there's anything you care about, then rename or delete the damaged data directory and initdb a new blank one.
You won't be able to DROP this database (or do much else) because PostgreSQL can't load the files for the pg_db_role_setting table, but it needs to delete entries referring to the dropped database from there.
As for how this happened:
Have you ever run with fsync = off in postgresql.conf?
Do you have SSD storage? If so, have you had any recent sudden power loss?
Have you ever done any direct modifications of any kind inside the PostgreSQL data directory?
Is the PostgreSQL data directory on external storage that might have been suddenly removed?
Have you ever deleted postmaster.pid ?
See also https://wiki.postgresql.org/wiki/Corruption
I'm running an instance of Google Cloud SQL. A CMS connects to this and updates it. Then there are several replications that run websites. Someone using the CMS deleted a page by accident. There's a backup from 12 hours ago, but I don't want to restore to that backup because the replications will be off with all the other changes that have been made. I just want to grab the SQL dump of that backup so I can scrounge out one page and restore that content. But, I don't see any way to do this, the only options in the Google Cloud SQL Console are to Delete or Restore a backup. Is there any way to download a backup?
You can restore the backup to a different instance. Create a new instance with the same database version, then click restore on the old instance backup and pick the new instance as the target. Once the restore is complete, you can connect to the new instance and retrieve the content you are interested in.
I've made my app on LocalDb\v11.0 on my own PC, and I'm trying to launch the website now. First I need to get the database filled with test data.
I think the best way to do this is make a .bak file of my current database and restore it on the host.
But how do I make a back up file (.BAK) of my LocalDb inside MVS?
I found a way to back up my Database using a SQL query.
BACKUP DATABASE AdventureWorks2008R2
TO DISK = 'Z:\SQLServerBackups\AdventureWorks2008R2.Bak'
WITH FORMAT,
MEDIANAME = 'Z_SQLServerBackups',
NAME = 'Full Backup of AdventureWorks2008R2';
found this on http://technet.microsoft.com/en-us/library/ms191304(v=sql.105).aspx
I don' think that you can do this from VS but you can definitely do it from SSMSE 2012. You can download it from Microsoft's Site. You can connect to (localdb)\v11.0 and you should be able to see your database. From here you can do a backup as well as connect to your production Db and do a restore from that backup.
No, it is possible to work on this on VS. I am using Visual Studio 2015 Express for Web.
Follow the steps:
In VS, go to Tools->SQL Server->New Query
Type in the following:
USE "yourdatabasename";
GO
BACKUP DATABASE "yourdatabasename"
TO DISK = 'C:\yourlocalpath\yourdatabasename.Bak'
WITH FORMAT,
MEDIANAME = 'Z_SQLServerBackups',
NAME = 'Full Backup of yourdatabasename';
GO
I need to automate the creation of a duplicate db from the .bak of my production db. I've done the operation plenty of times via the GUI but when executing from the commandline I'm a little confused by the various switches, in particular, the filenames and being sure ownership is correctly replicated.
Just looking for the TSQL syntax for RESTORE that accomplishes that.
Assuming you're using SQL Server 2005 or 2008, the simplest way is to use the "Script" button at the top of the restore database dialog in SQL Server Management Studio. This will automatically create a T-SQL script with all the options/settings configured in the way you've filled in the dialog.
look here: How to: Restore a Database to a New Location and Name (Transact-SQL), which has a good example:
This example creates a new database
named MyAdvWorks. MyAdvWorks is a
copy of the existing AdventureWorks
database that includes two files:
AdventureWorks_Data and
AdventureWorks_Log. This database uses
the simple recovery model. The
AdventureWorks database already
exists on the server instance, so the
files in the backup must be restored
to a new location. The RESTORE
FILELISTONLY statement is used to
determine the number and names of the
files in the database being restored.
The database backup is the first
backup set on the backup device.
USE master
GO
-- First determine the number and names of the files in the backup.
-- AdventureWorks_Backup is the name of the backup device.
RESTORE FILELISTONLY
FROM AdventureWorks_Backup
-- Restore the files for MyAdvWorks.
RESTORE DATABASE MyAdvWorks
FROM AdventureWorks_Backup
WITH RECOVERY,
MOVE 'AdventureWorks_Data' TO 'D:\MyData\MyAdvWorks_Data.mdf',
MOVE 'AdventureWorks_Log' TO 'F:\MyLog\MyAdvWorks_Log.ldf'
GO
This may help also: Copying Databases with Backup and Restore