PostgreSQL
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### Web resources

[PostgreSQL: The world's most advanced open source database](https://www.postgresql.org/) ★

[PostgreSQL - Community Help Wiki (Ubuntu)](https://help.ubuntu.com/community/PostgreSQL) ★

[postgresql - How do you find the row count for all your tables in Postgres - Stack Overflow](https://stackoverflow.com/questions/2596670/how-do-you-find-the-row-count-for-all-your-tables-in-postgres) ★

[schema compare - How to check difference between two databases in PostgreSQL? - Stack Overflow](https://stackoverflow.com/questions/4804779/how-to-check-difference-between-two-databases-in-postgresql) ★

[enums - Is there a way to show a user-defined postgresql enumerated type definition? - Stack Overflow](https://stackoverflow.com/questions/9535937/is-there-a-way-to-show-a-user-defined-postgresql-enumerated-type-definition) ★

[postgresql - Insert- and Read-only table in Postgres - Database Administrators Stack Exchange](https://dba.stackexchange.com/questions/232463/insert-and-read-only-table-in-postgres) ★

[postgresql - How to avoid deadlocks in Postgres? - Stack Overflow](https://stackoverflow.com/questions/25507688/how-to-avoid-deadlocks-in-postgres) ★

[sql - Postgres could not serialize access due to concurrent update - Stack Overflow](https://stackoverflow.com/questions/50797097/postgres-could-not-serialize-access-due-to-concurrent-update) ★

[Solution of psql: FATAL: Peer authentication failed for user "postgres" (or any user)](https://gist.github.com/AtulKsol/4470d377b448e56468baef85af7fd614) ★

[PostgreSQL JSON Tutorial](https://www.postgresqltutorial.com/postgresql-json/) ★

[Understanding PostgreSQL Timestamp Data Types](https://www.postgresqltutorial.com/postgresql-timestamp/) ★

[PostgreSQL notifications with Psycopg2 and Eventlet --- Psycopg](https://www.psycopg.org/articles/2010/12/01/postgresql-notifications-psycopg2-eventlet/) ★★