| Issue | Solution | |-------|----------| | | Verify odbcinst -q -d lists PostgreSQL | | Authentication failed | Check pg_hba.conf – ensure md5 or scram-sha-256 method | | SSL/connection refused | Ensure PostgreSQL listens on listen_addresses = '*' in postgresql.conf | | Encoding problems | Use Unicode driver variant, set client_encoding=UTF8 | | Performance slow | Enable UseDeclareFetch=1 and Fetch=1000 in DSN |
# /etc/odbcinst.ini (driver registration) [PostgreSQL] Description = PostgreSQL ODBC driver Driver = /usr/lib/x86_64-linux-gnu/psqlodbc.so Setup = /usr/lib/x86_64-linux-gnu/psqlodbc.so Driver64 = /usr/lib/x86_64-linux-gnu/psqlodbc.so Setup64 = /usr/lib/x86_64-linux-gnu/psqlodbc.so # ~/.odbc.ini or /etc/odbc.ini (DSN definition) [MyPostgresDB] Driver = PostgreSQL Server = localhost Port = 5432 Database = mydb Username = postgres Password = secret odbc postgresql
# Using isql (unixODBC) isql -v MyPostgresDB postgres secret | Issue | Solution | |-------|----------| | |
ODBC acts as a bridge between an application and a database. A (often referred to as psqlODBC) allows any ODBC-compliant application to communicate with a PostgreSQL database. It translates standard SQL queries into formats the PostgreSQL server understands, enabling seamless data access. # Print the results for row in rows:
# Print the results for row in rows: print(row)
Tableau will leverage the driver for efficient data extraction. Connecting Power BI to PostgreSQL
involves installing a driver and configuring a Data Source Name (DSN) to connect applications (e.g., Excel, Power BI, Tableau, custom apps) to a PostgreSQL database.