I am an Oracle DBA and I got a bkp.tar.tgz PostgreSQL backup file to restore on server. Vendor provided backup file before closing contract. I don't have any information for backup file.
I have below questions.
PostgreSQL backup can be restored on cross platform OS? If no, then how can I know what is source OS.
PostgreSQL db version needs to be same? Or doesn't matter? How to find db version from bkp file? They said it's PostgreSQL 9.4.5
Is there any other way I can access data from backup file?
Related
I have taken full backup of postgresql database which consists of 100 databases. The backup format is .sql (eg pg_dumpall.exe -U postgres > D:\Backup\fullbkp.sql) now one of my database got crashed and I want to extract this file to get that database backup only for restoration.
I have searched a lot but couldn't find any way to decompress so that I can get that particular database from full backup file.
Please suggest !!!!
Regards
Sadam
Such a backup is not compressed. Also, it contains a backup of all databases in th cluster, and there is no easy way to extract a single database.
Create a new PostgreSQL cluster with initdb, restore the dump there using psql, then use pg_dump to extract the single database you need.
I'm giving a try on PoWA, but I've got a little problem.
My Postgres database is running on AWS RDS.
PoWA needs HypoPG in order to suggest indexes.
But RDS doesn't support HypoPG extension. So I had to install PoWA at my backup database (outside RDS).
The problem is: PoWA isn't analyzing the restored database. It can't recognizes any data. If I execute some SQL queries manually it works though.
Is there something that I can be missing?
And, when I tried Ankane Dexter, I could show it the log files path (dumped at the backup database in parallel). Is there a way to do so in PoWA?
Thanks.
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 oracle 10g enterprise edition. I want to perform table backup and full database backup to .sql files to be able to move to another server/PC ...
If possible, image explanation ...
If you want to move to a different Oracle server, you should use:
expdp
To export your data. And:
impdp
To import it on the other database. Here's a WIKI entry that might help you. It's the easy way of moving data around Oracle servers.
On the other hand, ff you want to move your data to a different DATABASE SERVER (not Oracle branded) you would need some sort of translator in the way.
I am fairly new with PQSQL and am slowly picking things up - I have added a new disk and would like to do two things:
Restore a backup to this new disk - /hda2/pgdata/
Move a database from /hda1/pgdata to /hda2/pgdata/
Q1. Use pg_restore to restore a database. Check out the documentation which is very clear.
One important thing to remember, if you want to move to a later version of PostgreSQL use the later version of pg_dump to create a backup dump file. For example if you want to move from PostgreSQL version 8.3 to version 8.4, then create a backup dump file using pg_dump from version 8.4 and then use pg_restore 8.4 to recreate database in the 8.4 server.
http://www.postgresql.org/docs/8.4/static/app-pgrestore.html
Q2. Backup and restore is a safe way of doing it. Before restoring one can create a tablespace on the new disk and place the database in that space.
CREATE DATABASE mydb TABLESPACE myspace;
http://www.postgresql.org/docs/8.4/interactive/manage-ag-tablespaces.html
Simple command to restore database
Open PSQL Command console
Provide credentials
go to specific database that you need to restore (If the dataabse is not there Create empty database
/i < sql Dump file Path > e.g. \i /usr/local/pgsql/db20121109.sql