Postgresql windows command line backup

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Learn more. Restore a postgres backup file using the command line? Ask Question. Asked 11 years, 8 months ago. Active 8 days ago. Viewed k times. Hardik Mishra TwixxyKit TwixxyKit 8, 9 9 gold badges 29 29 silver badges 32 32 bronze badges.

Add a comment. Active Oldest Votes. There are two tools to look at, depending on how you created the dump file. It says: Dumps can be output in script or archive file formats. Nitin Nain 4, 1 1 gold badge 36 36 silver badges 48 48 bronze badges. Steven Schlansker Steven Schlansker IME you practically always want to restore into a database that has been newly-created from template0. Otherwise if you've done something like activating plpgsql in template1, the restore process will try to do it again, and the -1 switch you suggest means the whole transaction will fail.

If your backup file is just a. You cannot have -d and -f at the same time. In version 9. Regarding cannot be used together , see here: stackoverflow.

Alex it means it executes as a single transaction, which could completely fail and rollback, or go through. It will block some access to the database also. Show 10 more comments.

Guillaume Raymond 1, 1 1 gold badge 18 18 silver badges 32 32 bronze badges. Alex Deemann Alex Deemann 3, 2 2 gold badges 13 13 silver badges 9 9 bronze badges. I'd like to mention that before you execute these commands you should be located in the Posgresql bin folder. Tombart Tombart Worked great. For e. Note that -h option is needed. JiggneshhGohel As the manual says: -W option is never essential. These options are common for many PostgreSQL utils, thus not essential to answer this question it heavily depends on your setup.

Thank you. AnjanBiswas The first option is using compressed archive, which will need more CPUs but the backup file will occupy less space on disk. You just need to choose appropriate compression e. Aamir Natan Medeiros Natan Medeiros 1, 1 1 gold badge 10 10 silver badges 13 13 bronze badges. Eduardo Cuomo Yahor M Yahor M 6 6 silver badges 8 8 bronze badges. Govind Singh, why did you edit my answer? Sarath Ak Sarath Ak 6, 1 1 gold badge 42 42 silver badges 41 41 bronze badges.

For ubuntu you could use: gunzip -c mydb. If an SQL error occurs, the psql script continues to be executed; this is by default. If an error happens, you receive a partially restored database. To avoid this and complete the restoration, either fully successful or fully rolled back, set to restore a whole dump as a single transaction.

To do it, use -1 option to psql:. It preserves role and tablespace definitions cluster-wide data and performs backups of each database in a given cluster. Although each database will be internally consistent, snapshots of different databases may not be fully synchronized. Archived file formats are intended for transfer between architectures. Using the -j option, you can dramatically reduce the time to restore a large database to a server running on a multiprocessor machine.

Each job represents one thread or one process; it uses a separate connection to the server and depends on the operating system. For example, this command will restore a database in four concurrent jobs:.

Standard Unix tools can be used to manage a directory format archive; for example, the gzip tool can be used to compress files in an uncompressed archive. That format supports parallel dumps, compressed by default. The tar format is compatible with the directory format: a valid archive in directory format is produced when a tar-format archive is extracting.

However, the tar format does not support compression. In addition, when using the tar format, the relative order of the table data elements cannot be changed during the restoration process. From time to time, there is a need to backup only the database object definitions, which allows you to restore the schema only. It can be useful in the test phase, in which you do not want to keep the old test data populated. Use the following command to backup all objects in all databases, including roles, databases, tablespaces, tables, schemas, indexes, functions, triggers, constraints, privileges, views, and ownerships:.

Use the following command to backup the tablespaces definition:. An alternative backup strategy is to directly copy the files that PostgreSQL uses to store the data in the database. Any method for file system backups can be used, for example:. Then, you will be able to start a new server instance with the same release name on this folder note that you have to run this command at the administrator level :.

The continuous archiving method combines a file-system-level backup with a backup of the WAL files that stores each change made to the data files of the database. Knowing how to perform these operations on the command line means you can script them, and scripting means you can automate tests, check errors, and do data entry on the command line. Prompts are configurable so it may well not look like this. A line starting with represents a comment. Same for everything to the right of a.

Nothing will happen. You type backslash, the letter q , and then you press the Enter or return key. A common case during development is opening a connection to a local database one on your own machine. Run psql with -U for user name followed by the name of the database, postgres in this example:.

To connect your remote PostgreSQL instance from your local machine, use psql at your operating system command line. In case someone is peering over your shoulder, the characters are hidden. A few things appear, then the psql prompt is displayed. The name of the current database appears before the prompt.