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The logical structure with one to many relationships is a

  • network
  • tree
  • chain
  • relational
Similar Questions :

1. Related fields in a data base are grouped to form

  • data file
  • data record
  • menu
  • bank

2. The master list of an indexed file

  • is sorted in ascending order
  • contains only a list of keys and record numbers
  • has a number assigned to each record
  • none of above

3. 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

4. Which among following SQL commands is used to add a row

  • UPDATE
  • TRUNCATE
  • INSERT
  • ADD

5. Allocation map

  • Used to store program data
  • specifies which blocks are used by which file
  • is updated by application programs
  • allow programs to erase files
Read more from - Database Question Answers - Chapter 1
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