Second, back up each individual database using the pg_dump program as described in the above section.īesides the pg_dump program, PostgreSQL also provides you with the pg_dumpall tool that allows you to backup all databases at once.First, from the psql, use the command \list to list all available databases in your cluster.To back up all databases, you can run the individual pg_dump command above sequentially, or parallel if you want to speed up the backup process. > c:\pgbackup\dvdrental.tar is the output backup file path. In this example, we use -F t to specify the output file as a tar file.ĭvdrental: is the name of the database that you want to back up. F : specifies the output file format that can be one of the following: After you hit enter, pg_dump will prompt for the password of postgres user. W: forces pg_dump to prompt for the password before connecting to the PostgreSQL database server. U postgres: specifies the user to connect to the PostgreSQL database server. Let’s examine the options in more detail. pg_dump -U postgres -W -F t dvdrental > c:\pgbackup\dvdrental.tar Code language: SQL (Structured Query Language) ( sql ) Second, execute the pg_dump program and use the following options to backup the dvdrentaldatabase to the dvdrental.tar file in the c:\pgbackup\ folder. The pg_dump dumps out the content of all database objects into a single file.įirst, navigate to PostgreSQL bin folder: C:\>cd C:\Program Files\PostgreSQL\12\bin Code language: SQL (Structured Query Language) ( sql ) To backup one database, you can use the pg_dump tool. In the following section, you will learn step by step how to backup one database, all databases, and only database objects. PostgreSQL comes with pg_dump and pg_dumpalltools that help you backup databases easily and effectively.įor ones who want to see the command to backup databases quickly, here it is: pg_dump -U username -W -F t database_name > c:\backup_file.tar Code language: SQL (Structured Query Language) ( sql ) Both data and structures, or only structures.Before backing up the databases, you should consider the following type of backups: The CREATE DATABASE command let’s us create a new database in PostgreSQL.Summary: in this tutorial, you will learn how to backup the PostgreSQL databases using the pg_dump and pg_dumpall tool.īacking up databases is one of the most critical tasks in database administration. ![]() You will see a similar result in your PSQL shell like the one the above image if correctly implemented. You should provide the password that you used during the PostgreSQL installation. Finally, the shell will prompt you for the Password. You can set it to default by clicking on the Enter button in the keyboard without providing any value. The shell will prompt you for Server, Database, Port, and Username details. You can find the PSQL Shell in the Start Menu. ![]() Step 1: Creating our database through the command line To follow along with this tutorial, you should have: PostgreSQL is a powerful, open-source object-relational database system that uses and extends the SQL language combined with many features that safely store and scale the most complicated data workloads. ![]() Built by experienced developers, it takes care of much of the hassle of web development, so you can focus on writing your app without needing to reinvent the wheel. Django is a high-level Python Web framework that encourages rapid development, clean, and pragmatic design.
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