Postgres and Open Source Experts

Open the terminal and head into the PostgreSQL directory. Use the pg_dump command to create a backup of the database and pg_restore to restore the database.

The "relation does not exist" error in PostgreSQL can occur when accessing a table, usually due to incorrect naming, misspelling, etc.

JSON is the data type in the PostgreSQL database and it can be used to store data in a human-readable textual form which is different from other formats.

Connect to the PostgreSQL server, get the port number to which the user is connected, and change the port number from the “postgresql.conf” file from a computer.

Connect to the PostgreSQL database and head into the properties of the procedure. Locate the parameters and use them as arguments while calling the procedure.

To create a read-only user in PostgreSQL, create a role in the PostgreSQL database and grant read-only permissions to it. Create a user and grant the Role to it.

JSONB is the binary format of storing and exchanging data in JSON syntax which is a human-readable format and PostgreSQL allows the use of JSONB data types.

Universal Unique Identifiers or UUID data types generate random values to be stored in the PostgreSQL database table. The user needs to create its extension before using it.

Open the “pg_hba.conf” file from the local system and change the security method. Restart the application and change the password from the PostgreSQL server.

The major difference between a Procedure and a Function in PostgreSQL is that the Procedure does not return the value and the function does return it.