Get the Whitepaper called Sneak Peak at the Metasploit Framework – II. This article covers using databases with the Metasploit Framework in detail.
You can download it from the following link: https://packetstormsecurity.com/files/download/104213/SneakPeak_II.pdf
Source: https://packetstormsecurity.com/files/104213/Sneak-Peak-At-The-Metasploit-Framework-II.html