Is there a tool/extension that can graph data similar to Microsoft Access?
My current combination is using the "R" language "ggplot2"
module; with the appropriate DBI connectors to actually talk with the database in order to get the data to be visualized.
PostgreSQL itself is strictly a database - not an IDE like
MS Access. There are lots of tools that can speak to PostgreSQL using SQL to obtain data. You provide little in the way of context to allow others to provide suggestions.