Корично изображение Електронна книга

Temporal data and the relational model : a detailed investigation into the application of interval and relation theory to the problem of temporal database management /

Основен автор: Date, C. J.
Други автори: Darwen, Hugh., Lorentzos, Nikos A.
Формат: Електронна книга
Език: English
Публикувано: Amsterdam ; Boston [Mass.] : Morgan Kaufmann Publishers, ℗♭2003.
Издание: 1st ed.
Предмети:
Онлайн достъп: http://search.ebscohost.com/login.aspx?direct=true&scope=site&db=nlebk&AN=210507
Подобни документи: Print version:: Temporal data and the relational model.
Съдържание:
  • A review of relational concepts
  • An overview of Tutorial D
  • Time and the database
  • What is the problem?
  • Intervals
  • Operators on intervals
  • The EXPAND and COLLAPSE operators
  • The PACK and UNPACK operators
  • Generalizing the relational operators
  • Database design
  • Integrity constraints 1 : candidate keys and related constraints
  • Integrity constraints 2 : general constraints
  • Database queries
  • Database updates
  • Stated times and logged times
  • Point and interval types revisited.