Pg_dump command in linux

By default it assumes the current local user account (root). Another way is to change the current user and issue the command. It makes consistent backups even if the database is being used concurrently.

Dumps can be output in script or archive file formats. Backing up every database The postgresql way of backing up every database is to use the command pg _dumpall. Unfortunately pg _dumpall can only create plain text backups and should be considered deprecated.

However it is the only way to backup the globals in your cluster. Show help about pg _ dump command line arguments, and exit. The following command -line options control the database connection parameters. Specifies the host name of the machine on which the server is running.

If the value begins with a slash, it is used as the directory for the Unix domain socket. CREATE TABLE, ALTER TABLE, and COPY SQL statements of source database. To restore these dumps psql command is enough. The pg _ dump utility is run from the Linux command line. The command must be run by a user with privileges to read all of the database information, so it is run as the superuser most of the time.

Most seem to imply that pg _ dump writes a file somewhere. You are sending the output to a file, and you told the shell where to write that file. SQL format, the pg _ dump command does not store any file anywhere. I was trying to make a backup in a server and I got the error: pg _ dump command not found I thought that if you had postgres installe it worked.

To backup all databases, you can run the individual pg _ dump command above sequentially, or parallel if you want to speed up the backup process. PostgreSQL database into a script or an archive file. I use this command for dump: pg_dump –host=myhost –port=myport –username=super –format=c –file=myfile. But For restore, I had to drop the database, recreate it and then apply the command: pg_restore –host=myhost –port=myport –username=super -d mydbname myfile.

Ask Question Asked years, months ago. I would just download one of the pre-builds for the specific version and use the pg _ dump command out of there. These programs are executed on the command line and can therefore be incorporated into scripts if desired.

Windows, pg _restore on Linux ? Couple of questions with porting: 1. Here are some scripts which will backup all databases in a cluster individually, optionally only backing up the schema for a set list. The reason one might wish to use this over pg _dumpall is that you may only wish to restore individual databases from a backup, whereas pg _dumpall dumps a plain SQL copy into a single file. Login webhosting account via SSH. A plain-text script file containing SQL statements and commands that can be executed by the psql command line terminal program to recreate the database objects and load the table data.

This command must be run as a user with read permissions to the database you intend to back up. as the postgres user: su - postgres Dump the contents of a database to a file by running the following command. A protip by sajiabout backup, restore, and postgresql. Even otherwise this method is more faster than the phppgadmin method.

The script does pg _ dump and tar gzips it and stores in backup directory. It also deletes older backup that is more than days old. Replace the postgresql path, hostname, username, database name and tarfile name in the pg _ dump command in the script.