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Which among following SQL commands is used to add a row

  • UPDATE
  • TRUNCATE
  • INSERT
  • ADD
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1. Fragmentation of a file system

  • Can always be prevented
  • occurs only is file is not used properly
  • Can be temporarily removed by compaction
  • None of above

2. Network structure

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

3. 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
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  • transaction log

4. If a relation scheme is in BSNF then it is also in

  • First normal form
  • Second normal form
  • Third normal form
  • Not in any normal form

5. Data item characteristics that are important in data management include

  • punctuation
  • language
  • spelling
  • width
Read more from - Database Question Answers - Chapter 1
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