January 2019
Beginner
556 pages
14h 19m
English
Content preview from Learning PostgreSQL 11 - Third Edition
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Roles
Roles belong to the PostgreSQL server cluster and not to a certain database. A role can either be a database user or a database group. The role concept subsumes the concepts of users and groups in the old PostgreSQL versions. For compatibility reasons, with PostgreSQL version 8.1 and later, the CREATE USER and CREATE GROUP SQL commands are still supported.
The roles have several attributes, which are as follows:
- SUPERUSER: A superuser role can bypass all permission checks except the LOGIN attribute.
- LOGIN: A role with the LOGIN attribute can be used by a client to connect to a database.
- CREATEDB: A role with the create database attribute can create databases.
- CREATEROLE: A role with this feature enabled can create, delete, and alter ...
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