November 2019
Beginner to intermediate
470 pages
11h 59m
English
Content preview from Mastering PostgreSQL 12 - Third Edition
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Defining database-level security
After configuring users at the instance level, it is possible to dig deeper and see what can be done at the database level. The first major question that arises is this: we explicitly allowed Joe to log in to the database instance, but who or what allowed Joe to actually connect to one of the databases? Maybe you don't want Joe to access all the databases in your system. Restricting access to certain databases is exactly what we can achieve at this level.
For databases, the following permissions can be set using a GRANT clause:
GRANT { { CREATE | CONNECT | TEMPORARY | TEMP } [, ...] | ALL [ PRIVILEGES ] } ON DATABASE database_name [, ...] TO role_specification [, ...] [ WITH GRANT OPTION ]
There are two ...
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