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1. MongoDB
in
Developer Perspective
@roofimon
Scrum Master@Opendream™
Monday, May 14,

2. Agenda
• The Myth of Persistence
• How MongoDB Solve the Problems?
• Polyglot Persistence
Monday, May 14,

3. Set up Conversation
Strongly believe in Object Oriented
Programming
Strongly believe in Agile Development
Methodology
Monday, May 14,

4. The Myth of RDBMS
• Object Relational Impedance mismatch
• Schema Evolution
• Sparse Table
Monday, May 14,

5. These brought me to
the Problem of RDBMS
Monday, May 14,

6. Object Relational
Impedance Mismatch
Monday, May 14,

7. • Object Relational Mapping Costs Time And Money
• Relational Database Table Rows Have No Intrinsic
Object Identity
• Mapping Inheritance Hierarchies To Relational
Schemata Involves Compromises
• Foreign Keys Can Only Reference One Table
• Object Relational Impedance Mismatch Vs Object
To Pseudo Relational Impedance Mismatch
Monday, May 14,

8. Semi-Structure Data
“Batman of Gotham City, MA died Friday at Arkham
Medical Center in Boston after a bout with cancer. He
was 66.
Born in Revere, he was raised and educated in Salem, MA.
He was a member of St. Mary’s Church in Salem, MA, and
is survived by his wife, Jane N., and two children, John A.,
Jr., and Lily C., both of Winchester, MA.
A memorial service will be held at 10:00 AM at St. Mary’s
Church in Gotham.”
Monday, May 14,

9. Monday, May 14,

10. Monday, May 14,

11. Sparse Table
Monday, May 14,

12. Schema Evolution
Varchar(20) Varchar(20)
Int Double
Varchar(20) Varchar(200)
Date dd/mm/YY Date YY/mm/dd
100M records/DB size = 2TB
Monday, May 14,

13. MongoDB
Monday, May 14,

14. MongoDB
Monday, May 14,

15. Beauty of MongoDB
Monday, May 14,

16. Beauty of MongoDB
Monday, May 14,

17. Beauty of MongoDB
Monday, May 14,

18. Beauty of MongoDB
Monday, May 14,

19. Beauty of MongoDB
Monday, May 14,

20. Beauty of MongoDB
Monday, May 14,

21. Beauty of MongoDB
Monday, May 14,

22. Beauty of MongoDB
Monday, May 14,

23. Dynamic Attribute
Monday, May 14,

24. Dynamic Attribute
Monday, May 14,

25. Dynamic Attribute
Monday, May 14,

26. RBMS Ghost
Monday, May 14,

27. Eventually Consistency
Monday, May 14,

28. Not silver bullet
Monday, May 14,

29. What is not for Mongo
• Graph Data
• Very Rich Object Oriented Model
• Structure Data
• Analytical Data
Monday, May 14,

30. Polyglot Persistence
Monday, May 14,

31. Q and A
www.mongodb.in.th
Monday, May 14,