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What the term Persistence means in the context of database systems.

  • Data in a database is described as being persistent. By persistent we mean that the data is held for some duration. The duration may not actually be very long.
  • The term persistence is used to distinguish more permanent data from data which is more transient in nature.
  • A program which reads and writes data to and from an external data file. The data in such a file persists beyond the running of the program.