In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?

Question

In my experience, getting dates/times right when programming is always fraught with danger and difficulity.

Ruby and Rails have always eluded me on this one, if onl

Answer 1

1. :datetime (8 bytes)

   • Stores Date and Time formatted YYYY-MM-DD HH:MM:SS
   • Useful for columns like birth_date

2. :timestamp (4 bytes)

   • Stores number of seconds since 1970-01-01
   • Useful for columns like updated_at, created_at
3. :date (3 bytes)
   • Stores Date
4. :time (3 bytes)
   • Stores Time