The PS4 can upload screenshots from both within and outside of games. To capture and upload a screenshot, press the Share button on the DualShock 4. This takes a snapshot and opens a menu.
DROP TABLE goes further than a TRUNCATE in that it actually removes the table from the database completely. This includes removing all associated objects, such as indexes and constraints. If you dropped a table, not only would you remove all the data, but the structure as well.
1 In some database systems, TRUNCATE TABLE resets the count of an Identity column back to the identity's seed.  In Microsoft SQL Server 2000 and beyond in full recovery mode, every change to the database is logged, so TRUNCATE TABLE statements can be used for tables involved in log shipping.