PostgreSQL typically uses port 5432. Ensure your Windows Firewall or network security groups allow traffic on this port. Step 1: Download the PostgreSQL ODBC Driver The official driver for PostgreSQL is known as psqlODBC . Visit the official PostgreSQL ODBC download page.
If you install the 64-bit driver but try to connect via 32-bit Excel, the database will not be visible. postgresql odbc windows 7 64 bit
This is where most confusion occurs on Windows 7 64-bit. The operating system has separate ODBC Data Source Administrators. PostgreSQL typically uses port 5432
Users often recommend setting "Row Versioning" to 'on' to prevent update conflicts in apps like Microsoft Access. Visit the official PostgreSQL ODBC download page
The drivers are typically distributed as .msi files. Installation is lightweight, requiring minimal disk space.
Connecting a 64-bit Windows 7 system to a PostgreSQL database via ODBC requires specific drivers and a precise configuration process. Because Windows 7 handles 32-bit and 64-bit drivers separately, using the wrong version of the "ODBC Data Source Administrator" is the most common cause of connection failure.