Backup & Restore a database in PostgreSQL - Mailing list pgsql-general

From Siva Palanisamy
Subject Backup & Restore a database in PostgreSQL
Date
Msg-id 90F0F47595235141A4380FCF01B0185B20BC42670E@CHN-HCLT-EVS07.HCLT.CORP.HCL.IN
Whole thread Raw
Responses Re: Backup & Restore a database in PostgreSQL  (John R Pierce <pierce@hogranch.com>)
List pgsql-general

Hi All,

 

I am also a newbie here! I need to backup a database and restore it into the target machine where the database may already present or might not. If it exists, I want the "restore" command to overwrite, otherwise, just create a new one.

 

I tried using the commands:

(1) BACKUP: pg_dump -h localhost -U username db > dump_file.out;

RESTORE: pg_dump -h localhost -U username db < dump_file.out;

(2) BACKUP:

pg_dump -h localhost -U username -Ft db > dump_file.tar;

RESTORE:

pg_restore -h localhost -U username -d db dump_file.tar;

 

"Backup" worked perfect in the above 2 scenarios whereas "restore" didn't yield the exact results. For testing it, I took the back-up and intentionally deleted few records in a table. I then restored the database in the same machine where the database exists. I expected the deleted records to come back as I was restoring the one which has the complete data. It didn't yield proper results. And I wonder why..

 

I believe I might be doing something marginally wrong. I would appreciate if any geek over here to guide me the "restore" command properly.

 

Thanks in advance,

Siva.



::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
received this email in error please delete it and notify the sender immediately. Before opening any mail and
attachments please check them for viruses and defect.

-----------------------------------------------------------------------------------------------------------------------

pgsql-general by date:

Previous
From: - -
Date:
Subject: Re: Query with rightmost function does not use index
Next
From: John R Pierce
Date:
Subject: Re: Backup & Restore a database in PostgreSQL