Chapter Review
We enabled Oracle Database to send E-Mail messages and to browse to web pages. Using those abilities, we developed a process to send 2-factor authentication codes to our application users on their cell phones, pagers and e-mail accounts. Users will have to enter those 2-factor codes in order to get access to our application data.
We built a table to hold mobile phone numbers for users and another to hold web addresses of SMS gateways for each cell phone carrier. We also added a table to hold cached 2-factor codes.
We implemented foreign keys to maintain referential integrity between our tables. And we discussed a coding standard for exchanging dates between Oracle Database and Java.
An overview of the 2-factor code distribution ...
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