5.4.2 Roles & administration
Every entry filed under Roles & administration and its subtopics.
Level
- Beginner 1
- Intermediate 5
- Advanced 0
6 entries
- 0199 psql meta-commands cheat sheet The backslash commands you use every day in psql: connecting, listing databases, tables and roles, describing objects, timing queries, expanded output and… Beginner · Reference · Any system Article Install & connect · Roles & administration 15 Oct 2026
- 0200 PostgreSQL roles, privileges and default privileges Create login and group roles, grant access to databases, schemas and tables, and use ALTER DEFAULT PRIVILEGES so tables created later get… Intermediate · How-to · Linux Article Roles & administration · Security & access 15 Oct 2026
- 0204 VACUUM, autovacuum and table bloat in PostgreSQL Updates and deletes leave dead row versions behind. VACUUM makes that space reusable, keeps statistics fresh and prevents transaction ID wraparound; autovacuum… Intermediate · Concept · Linux Article Performance & tuning · Roles & administration 15 Oct 2026
- 0207 Find long-running PostgreSQL queries and slow statements A psql-based script that lists sessions whose current query or open transaction is older than a threshold, plus pg_stat_statements queries to find… Intermediate · Reference · Linux Script Performance & tuning · Roles & administration 15 Oct 2026
- 0209 Fix: FATAL: password authentication failed for user PostgreSQL reached the server and found a matching pg_hba.conf rule, but the password check failed. Usually a wrong password, a role without… Intermediate · Fix · Any system Article Roles & administration · Security & access 15 Oct 2026
- 0257 Run PostgreSQL properly on a Linux server: install, lock down, back up, monitor and patch Set up PostgreSQL 18 from the official repository for one application: a dedicated role and database, SCRAM logins from one app server… Intermediate · Tutorial · Linux Article Backup & restore · Install & connect · Roles & administration 15 Oct 2026