MongoDB San Francisco DrupalCon 2010

1. Karoly Negyesi Developer team lead NowPublic.com / Examiner.com

3. Oracle 1979

4. MySQL 1982

5. PostGRES 1986

8. Memory capacity

9. Hard disk capacity

11. And now some Bayou slides... www.cs.berkeley.edu/~istoica/classes/cs268/06/notes/20-BFTx2.pdf

13. Normal forms

14. Transactions

15. Rich feature set http://dev.mysql.com/doc/refman/5.0/en/string-functions.html

16. “Databases are operating systems that you don't have to write sound drivers for.” - Brian Aker http://twitter.com/timoreilly/status/12247022198

18. Denormalization

19. Too much overhead for transactions

20. Most of features are rarely needed

21. Even worse The iPhone

23. Key-value stores

24. Document stores

25. Performant

26. Scalable

27. Not too many features

29. Collections

30. Documents

31. Strictly but dynamically typed

32. Arrays and objects

33. In place updates

34. Foreign key support

35. Native PHP driver

37. db.things.save({ y : 4 })

38. db.things.find()

39. { "_id" : ObjectId("4b10d1997bd1e19a46fc8862"), "x" : 3 }

40. { "_id" : ObjectId("4b10d1aa7bd1e19a46fc8863"), "y" : 4 }

42. Can be anything as long it's unique

44. o=db.things.findOne({b:2})

45. o.c=4

46. db.things.update({b:2}, o)

47. db.things.find()

48. { "a" : 1, "b" : 2, "c" : 4 }

50. db.things.find()

51. {"a" : 1, "b" : 2, "c" : 4 }

52. db.things.update({ b : 2} , { $inc : { c : 100 }})

53. db.things.find() {"a" : 1, "b" : 2, "c" : 104 }

55. db.things.save({a:[5,6,7]})

56. db.things.find({a:2}) { "a" : [ 1, 2, 3 ] }

58. db.things.update({n:1},{$push:{a:4}})

59. db.things.find()

60. { "n" : 1, "a" : [ 1, 2, 3, 4 ] }

62. db.things.save({db:{name:'mysql', interesting:false }})

63. db.things.find({'db.interesting':true})

64. {"db" : { "name" : "mongodb", "interesting" : true } }

66. Objects

67. Arrays

69. Search for ids and then load the rest

72. User profiles

74. Transaction needs

76. Field_storage. Oh yes!

77. Session

78. Watchdog

79. Block

80. Queue