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Two basic types of record access methods are

  • sequential and random
  • direct and immediate
  • sequential and indexed
  • online and real time
Similar Questions :

1. Network structure

  • is a physical representation of data
  • is conceptually simple
  • allows many to many relationships
  • none of above

2. Large collection of files are called

  • fields
  • Records
  • Database
  • Sectors

3. Natural join can be related with

  • Function dependency
  • B tree
  • Domain calculus
  • Relational algebric operators

4. File record length

  • should always be fixed
  • should always be variable
  • should be chosen to match the data character
  • depends upon the size of file

5. Secondary index can be related with

  • Function dependency
  • B tree
  • Domain calculus
  • Relational algebric operators
Read more from - Database Question Answers - Chapter 1
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