Definition: A view is a representation of a SQL statement that is stored in memory so that it can be re-used. A view is a logical entity or logical table that is essentially a SQL statement stored in the database in the system tablespace.
As it turns out, it's very likely that your Facebook and Twitter messages are better protected from government snoops than your phone texts, even when you send them from the same device.
For most CIOs, text messages on an employee's bring your own device phone are a blind spot. That is, text messages don't go through the corporate network and thus are unmonitored and presumed unrecoverable when deleted. Even phone companies supposedly don't store content of text messages. We just had a case last week where we were able to harvest and recover 8,000 text messages.