Database Schema

wikipedia:Database schema are analogous to directories at the operating system level, except that schemas cannot be nested. Typical schemas usage scenarios :

• To allow many users to use one database without interfering with each other.
• To organize database objects into logical groups to make them more manageable.
• Third-party applications can be put into separate schemas so they do not collide with the names of other objects.

public or default

Examples

• CREATE SCHEMA

Grant examples on schemas:

• GRANT USAGE ON ALL SEQUENCES IN SCHEMA your_schema TO mygrp;
• GRANT USAGE ON SCHEMA your_schema TO GROUP your_group;

• Show/List schemas:
  • select nspname from pg_catalog.pg_namespace;
  • select schema_name from information_schema.schemata;
  • \dn
  • \dn+

PostgreSQL: pg_catalog and public.

GRANT SELECT ON ALL TABLES IN SCHEMA public TO xxx;

ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO xxx;

GRANT ALL PRIVILEGES ON SCHEMA

Related

• Liquibase
• PostgreSQL, Amazon Redshift
• GRANT
• Role
• PostgreSQL: catalogs
• GRANT SELECT
• Index, Table, Schema, Sequence, Views
• SET search_path, SHOW search_path
• GRANT ON ALL TABLES

News

• Oct 2022 PostgreSQL 15, revokes the CREATE permission from all users except a database owner from the public (or default) schema

See also

• Schema, search_path, \dn+, GRANT ALL PRIVILEGES ON SCHEMA
• PostgreSQL: pg_dump, pg_restore, pgAdmin, pg_config, psql, pg_ctl, pg_isready, initdb, Role, Schema, DBeaver, Navicat, DataGrip, OmniDB, Adminer, docker-compose.xml PostgreSQL, PostgreSQL version, PostgreSQL logs, postgresql.conf, pg_hba.conf, $HOME/.pg_service.conf, Create database (PostgreSQL), Create user, createdb, GRANT, pg_stat, PostgreSQL VACUUM, EXPLAIN, pg stat activity, Autovacuum, ALTER DATABASE, PostgreSQL statistics collector, Shared buffers, EXPLAIN (PostgreSQL), EXPLAIN ANALYZE, Bitmap scan, EXPLAIN VERBOSE, EXPLAIN VERBOSE (PostgresSQL), WAL, ALTER USER, CREATE ROLE, CREATE USER, \du, show users, \l, The Statistics Collector, pganalyze, cron.schedule, Master, pg_tables, PostgreSQL replication, CREATE, SET, TOAST, PgBouncer, Restore DB, Index, meta-commands, Table, foreign table, Schema, Sequence, Views, materialized view, Table Partitioning, monitoring, PostgreSQL System Administration Functions, PostgreSQL extension, privileges, logging, PGTune, PostgreSQL parameter tunning, PostgreSQL modules, pgbench, PostgreSQL users, catalogs

https://www.postgresql.org/docs/current/ddl-schemas.html

https://www.postgresql.org/docs/current/ddl-schemas.html

https://stackoverflow.com/a/10353730

https://dba.stackexchange.com/questions/40045/how-do-i-list-all-schemas-in-postgresql