Tuesday, 21 August 2012

2NF to 3NF

  • Step1:Identify Each New Determinant

    • For every transitive dependency, write its determinant as Primary Key for new table
  • Step2: Identify the dependent Attributes

    • Identify attributes dependent on each determinant identified in Step 1 and identify dependency
  • Step3: Remove the dependent Attributes from transitive dependencies.

    • Eliminate all dependent attributes in transitive relationship from each of the tables that have such a transitive relationship.

No comments:

Post a Comment