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Template:Sister Null may refer to:

In computing

  • Null (SQL), a special marker and keyword in SQL
  • Null character, the zero-valued ASCII character, also designated by NUL, often used as a terminator, separator or filler
  • Null device, a special computer file that discards all data written to it
  • Null modem, a specially wired serial communications cable
  • Null Object pattern, a software design pattern using an object with defined neutral behavior
  • Null pointer (sometimes written NULL), used in computer programming for an uninitialized, undefined, empty, or meaningless value
  • Null string, the unique string of length zero (in computer science and formal language theory)
  • Null-terminated string, a character string of which the length is determined by the first null-character (in programming language C and related languages)
  • Nullable type, a feature of some statically-typed programming languages which allows a data type to be set to the special value NULL

In art

In mathematics

In science



See also