WIU_Faculty Table (Stored as Unsorted Data File): 503 301 402 604 705 Secondary B-Tree on E#: 480005 220001 311414 600012 800003 Secondary B-Tree on Salary.

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Presentation transcript:

WIU_Faculty Table (Stored as Unsorted Data File): Secondary B-Tree on E#: Secondary B-Tree on Salary ROW# E# ENAMEDEPT#JOBSALARYCHAIR_E# 130Warren, Tom12Chair New Person22Faculty Johnson, Paul22Faculty manager12manager New Faculty Faculty Secondary B-Tree Example

Primary or Clustered B-Tree Example on E# No unsorted data file. No B-Tree is now possible on salary; why? 50Johnson, Paul22Faculty Warren, Tom12Chair New Person22Faculty manager12manager New Faculty Faculty

Primary or Clustered B+ Tree Example on E# 50 30Warren, Tom12Chair New Person22Faculty Johnson, Paul22Faculty manager12manager New Faculty Faculty Next Ptr