Every documented PostgreSQL error with causes, fixes, and code examples. Part of DB Error Reference.
23505 Unique Violation42601 Syntax Error42P01 Undefined Table23503 Foreign Key Violation42703 Undefined Column08006 Connection Failure40P01 Deadlock Detected08001 Sqlclient Unable to Establish Sqlconnection23502 Not Null Violation42501 Insufficient Privilege40001 Serialization Failure08003 Connection Does Not Exist23514 Check Violation42883 Undefined Function57014 Query Canceled55P03 Lock Not Available22001 String Data Right Truncation22003 Numeric Value Out of Range42P02 Undefined Parameter22012 Division by Zero