Locking

• PostgreSQL explicit locking
• PostgreSQL Index Locking
• MySQL locking: https://dev.mysql.com/doc/refman/8.0/en/internal-locking.html

Errors

• unique constraint

Related

• VACUUM
• AccessExclusiveLock
• AccessShareLock
• Axle locking: rear differential motor

See also

• Index (PostgreSQL): create index, Index Locking
• VACUUM: PostgreSQL VACUUM, Autovacuum, pg_database, pg_stat_activity, Redshift VACUUM
• Locking, Index locking