Question Detail

Network structure

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

1. Natural join can be related with

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

2. Database management systems are used to

  • eliminate data redundancy
  • establish relationships among records in different files
  • manage file access
  • none of above

3. Ascending order of data hierarchy is

  • bit->byte->record->field->file->database
  • bit->byte->field->record->file->database
  • byte->bit->field->record->file->database
  • byte->bit->field->file->record->database

4. 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

5. Which among following contains a complete record of all activity that affected the contents of a database during a creation period of time

  • report writer
  • query language
  • DML
  • transaction log
Read more from - Database Question Answers - Chapter 1