Difference between revisions of "Database Schema"
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* Third-party applications can be put into separate schemas so they do not collide with the names of other objects. | * Third-party applications can be put into separate schemas so they do not collide with the names of other objects. | ||
− | == | + | public or default |
− | * [[CREATE SCHEMA]] | + | |
+ | == Examples == | ||
+ | * <code>[[CREATE SCHEMA]]</code> | ||
Grant examples on schemas: | Grant examples on schemas: | ||
Line 21: | Line 23: | ||
− | [[GRANT SELECT | + | [[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]] | ||
+ | |||
+ | |||
+ | == Errors == | ||
+ | * [[ERROR: permission denied for schema public]] | ||
== Related == | == Related == | ||
Line 30: | Line 40: | ||
* [[PostgreSQL: catalogs]] | * [[PostgreSQL: catalogs]] | ||
* <code>[[GRANT SELECT]]</code> | * <code>[[GRANT SELECT]]</code> | ||
− | * [[Index]], [[Table]], [[Schema]], [[Sequence]], [[Views]] | + | * [[Index]], [[Table]], [[Schema]], [[Sequence]], [[Views]], [[PostgreSQL Materialized Views|Materialized Views]] |
− | * <code>[[search_path]]</code> | + | * <code>[[SET]] [[search_path]]</code>, <code>[[SHOW search_path]]</code> |
+ | * <code>[[GRANT ON ALL TABLES]]</code> | ||
+ | * <code>[[schema_name]]</code> | ||
+ | |||
+ | == News == | ||
+ | * Oct 2022 [[PostgreSQL 15]], revokes the [[CREATE]] permission from all users except a database owner from the [[public]] (or default) schema | ||
== See also == | == See also == | ||
− | * {{ | + | * {{Schema}} |
[[Category:PostgreSQL]] | [[Category:PostgreSQL]] |
Latest revision as of 08:54, 7 August 2024
wikipedia:Database schema are analogous to directories at the operating system level, except that schemas cannot be nested. [1] Typical schemas usage scenarios [2]:
- 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
Contents
Examples[edit]
Grant examples on schemas:
GRANT USAGE ON ALL SEQUENCES IN SCHEMA your_schema TO mygrp;
[3]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;
[4]\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
Errors[edit]
Related[edit]
News[edit]
- Oct 2022 PostgreSQL 15, revokes the CREATE permission from all users except a database owner from the public (or default) schema
See also[edit]
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