Should I use a document database?

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For the last 40 years or so, we used relational databases successfully in nearly all business contexts and systems of nearly all sizes. Therefore, if you feel no pain using a RDBMS, you can stay with it. But, if you always have to work around your RDBMS to get your job done, a document oriented database might be worth a look. RavenDB is a 2nd generation document database that allows you to write a data-access layer with much more freedom and many less constraints. If you have to work with large volumes of data, thousands of queries per second, unstructured/semi-structured data or event sourcing, you will find RavenDB particulary rewarding. In this talk we will explore some document database usage scenarios. I will share some data modeling techniques and many architectural criteria to help you to decide where safely adopt RavenDB as a right choice.

Technologie

Should I use a document
database?
Elemar Júnior
@elemarjr
elemarjr@ravendb.net
elemarjr.com

But ... again, Should I use a
Document Database?

A long time ago (2002) in a galaxy far far
away (Caxias do Sul, RS – Brazil) ...

A brave team started to write a new version, from the scratch, of a
popular Brazilian software

We could use
one table with nullable fields (like Sharepoint
AllUserData Table)
Sounds Strange!Right?

We could use
some complex relational database structure
Complex!Better?

Documents XML is are
“DDD-Friendly”
Entity
Value-Type
XML is
“DDD-Friendly”

Domain-Driven
Design
by Eric Evans (2004)
2002

DDD means (2002)
“Document-Driven Design”
Entity
Value-Type

DDD means (2002)
“Document-Driven Design”

JSON would be better
Primitive types support

Easy Caching
Azure BLOB
Desktop
Desktop
Desktop

again, Should I use a
Document Database?

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Should I use a document database?

1. Should I use a document database? Elemar Júnior @elemarjr elemarjr@ravendb.net elemarjr.com

2. Hello, I am Elemar Jr

3. I am Microsoft MVP

4. I love to learn new things

5. I love compilers

6. I love to write compilers

7. I love Roslyn

8. I love Computer Graphics

10.

11.

12. But ... again, Should I use a Document Database?

13. Let me tell you a story...

14. A long time ago (2002) in a galaxy far far away (Caxias do Sul, RS – Brazil) ...

15. A brave team started to write a new version, from the scratch, of a popular Brazilian software

16.

17.

18. How to store furniture information?

19. 4 .mdb Why not?

20. .mdb

21. Schema?

22.

23. Some common properties

24. ... but a lot of specific properties

25. We could use one table with nullable fields (like Sharepoint AllUserData Table) Sounds Strange!Right?

26. We could use some complex relational database structure Complex!Better?

27. .mdb

28. <xml />2002, remember?

29. XML is Flexible (no Schema) Perfect!

30. XML is almost Human-readable Good!

31. XML is “DDD-Friendly”

32. Documents XML is are “DDD-Friendly” Entity Value-Type XML is “DDD-Friendly”

33. Domain-Driven Design by Eric Evans (2004) 2002

34. .NET history

35. DDD means (2002) “Document-Driven Design” Entity Value-Type

36. DDD means (2002) “Document-Driven Design”

37. JSON would be better Primitive types support

38.

39.

40. Documents Collections

41. reference flexible data types

42. Quick access using an Index 0 1 2 3 4

43. Easy Sharding 0 1 2 3 4

44. Easy Hashing 0 1 2 3 4 #MD5 #MD5

45. Easy Caching 0 1 2 3 4 #MD5 #MD5

46. Easy Caching Azure BLOB Desktop Desktop Desktop

47. NoSQL is not new ...

48. NoSQL is NoNEW ...

49. Coming back to the original question...

50. again, Should I use a Document Database?

51. It depends...

52. Do you need a flexible schema?

53. BETTER QUESTION

54. Is it an opportunity?

55. What about event sourcing?

56. What about CQRS?

57. Do you need to scale?

58. What about sharding?

59. What about caching?

60. What about replication?

61. Today, we have RavenDB!

62. RavenDB supports transactions!

63. Querying is easy with RavenDB

64. again, Should I use a Document Database?

65. Why not!?

66. Thank you!

67. Should I use a document database? Elemar Júnior @elemarjr elemarjr@ravendb.net elemarjr.com

Should I use a document database?

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