Pg_dump shell

It makes consistent backups even if the database is being used concurrently. Dumps can be output in script or archive file formats. Automate pg _ dump in a bash script.

Ask Question Asked years, months ago. Active years, months ago. I am re-learning bash after years of not using it very much and need to figure out a way to automate pg _ dump of a single database to a directory. Currently I manually ssh into the box, su to postgres user, then run pg. This documentation has always bothered me because it should have been re-written years ago.

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. I need to create a shell script for cron. I am using Redhat and Postgresql v7.

Updated to reflect changes from 8. CREATE TABLE, ALTER TABLE, and COPY SQL statements of source database. To restore these dumps psql command is enough. 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. Task: dump a payroll database.

On the remote server, however, I have no such luxury. Using the various options available with the pg _ dump and pg _restore programs, you can control which database objects are saved in a backup file, which database objects are restored from a backup file, and how they are restored. The pg _ dump program cannot apply compression to tar archive backup files. This means that you can perform this backup procedure from any remote host that has access to the database.

But remember that pg _ dump does not operate with special permissions. In particular, it must have read access to all tables that you want to back up, so. PostgreSQL client application (albeit a particularly clever one). Shell script to execute pgsql commands in. Restore a postgres backup file using the command.

In this section, we will see a couple of examples of incorporating pg _ dump and pg _dumpall into simple shell scripts. The be clear, this is not a shell script tutorial. Subject: pg _ dump shell or php? You can backup only certain databases or the whole server. Just as psql allows you to connect to a remote host, pg _ dump can be run from a client computer to back up data on a remote server.

Besides psqltool, you can use pg _restore program to restore databases backed up by the pg _ dump or pg _dumpalltools. 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. The above command can be run directly from a Linux shell.

Below is a description of each portion of the above command that will search the batteries table for entries relating to the userid specified. Depending on what pg _ dump was instructed to dump , the SQL file can have different sets of SQL commands. To see a list of all the available options use pg _ dump -? With given options pg _ dump will first prompt for a password for the database user db_user and then connect as that user to the database named db_name. A bourne shell script that automates the backup, vacuum and. Sign in Instantly share code, notes, and snippets.

DBA介入，希望DBA对这个项目的数据库进行备份。要到主机帐号后，先对数据库进行一翻熟悉，发现上面有虽然有9个库，但是数据量都不大，除了一个库有5G左右，其它的都在1G以下，因为目前业务还没完全上线，等以后业务起来后数据量应该会大些, 由于数据库不是.