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ANSI-SPARC  3-Level Architecture
[object Object],[object Object]
[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],ANSI/SPARC 3-Level Architecture
[object Object],[object Object],[object Object],[object Object],Schemas
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
[object Object],[object Object],[object Object],[object Object],Schemas
The three levels in detail
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
[object Object],[object Object],[object Object],[object Object],External Level
[object Object],[object Object],[object Object],External Level
[object Object],[object Object],[object Object],[object Object],External Level
[object Object],[object Object],[object Object],[object Object],[object Object],External Level
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],External Level
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],External Level
PrescriptionID DoctorID PatientID DrugID Date Frequency User Interface
[object Object],[object Object],[object Object],External Level
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
[object Object],[object Object],[object Object],[object Object],Conceptual Level
Prescription Drug Patient Doctor
[object Object],[object Object],[object Object],Conceptual Level
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
[object Object],[object Object],[object Object],Internal Level
Index Table (Prescription) Doctor Name Patient Name Drug Name Date Frequency (per day) Dr. Lewis Zimmerman  Tom Paris Tri-Ox 42231.2 2 Dr. Julian Bashir Odo Hyronalin 45432.1 3 Dr. Lewis Zimmerman  Harry Kim Tri-Ox 42235.2 7 Dr. Beverly Crusher Lt. Data Hyronalin 45912.3 1 Dr. Julian Bashir Odo Synaptizine 48796.6 2 Dr. Lewis Zimmerman  Tom Paris Priaxate 42765.5 90 Dr. Lewis Zimmerman Tom Paris Tri-Ox 42604.4 5 Dr. Lewis Zimmerman  Katherine Janeway Hyronalin 45673.4 4 Dr. Phlox T’Pol Tri-Ox 37389.5 3 Dr. Lewis Zimmerman  Dr. Beverly Crusher Dr. Julian Bashir Dr. Phlox
ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages

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ANSI-SPARC - Star Trek style - v2.0

  • 1. ANSI-SPARC 3-Level Architecture
  • 2.
  • 3.
  • 4.
  • 5.
  • 6.
  • 7. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level
  • 8. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema
  • 9. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
  • 10. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
  • 11.
  • 12. The three levels in detail
  • 13. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
  • 14.
  • 15.
  • 16.
  • 17.
  • 18.
  • 19.
  • 20. PrescriptionID DoctorID PatientID DrugID Date Frequency User Interface
  • 21.
  • 22. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
  • 23.
  • 25.
  • 26. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages
  • 27.
  • 28. Index Table (Prescription) Doctor Name Patient Name Drug Name Date Frequency (per day) Dr. Lewis Zimmerman Tom Paris Tri-Ox 42231.2 2 Dr. Julian Bashir Odo Hyronalin 45432.1 3 Dr. Lewis Zimmerman Harry Kim Tri-Ox 42235.2 7 Dr. Beverly Crusher Lt. Data Hyronalin 45912.3 1 Dr. Julian Bashir Odo Synaptizine 48796.6 2 Dr. Lewis Zimmerman Tom Paris Priaxate 42765.5 90 Dr. Lewis Zimmerman Tom Paris Tri-Ox 42604.4 5 Dr. Lewis Zimmerman Katherine Janeway Hyronalin 45673.4 4 Dr. Phlox T’Pol Tri-Ox 37389.5 3 Dr. Lewis Zimmerman Dr. Beverly Crusher Dr. Julian Bashir Dr. Phlox
  • 29. ANSI/SPARC 3-Level Architecture External Level Conceptual Level Internal Level External Schema 1 External Schema n Conceptual Schema Internal Schema Data Definition Data Manipulation Data Administration Associated Languages