J. Randall Hunt is a developer advocate at MongoDB who introduces MongoDB and why it was created. He provides some key information about MongoDB including that it uses a document model instead of a relational schema, stores data in collections instead of tables, and uses embedded documents instead of joins. He demonstrates some basic CRUD operations in MongoDB and notes it supports many operators. He encourages building something awesome with MongoDB before thanking the audience.

1. Oh, Hi There LAHacks
J. Randall Hunt
Developer Advocate at MongoDB

3. Who am I?
• J. Randall Hunt
• @jrhunt
• github.com/ranman
• randall@mongodb.com
• I'm a developer. I'm here to help.

8. Why change something
that's been around for 40
years?

9. 10TB
Data Human Kind Has Produced Until 1991

10. Data Mankind Produces Every Day Since 2001
10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB
10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB
10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB
10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB
10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB 10TB

11. 2 Kinds Of Data

12. NOSQL/NOREL

13. Relational Schema Design
Focus on data storage

14. Document Schema Design
Focus on data use

18. Nitty Gritty

19. RDBMS MongoDB
Database Database
Table Collection
Row Document
Index Index
Join Embedded Document
Foreign Key Reference

21. Documents?

22. {
"hello": "world"
}

23. {
"_id": ObjectId("51638f8332e9bc556fe86de7"),
"dstats": [
{
"+": "5",
"-": "0",
"f": "gitstreamer.py"
},
{
"+": "3",
"-": "3",
"f": "post-commit.py"
}
],
"author": "ranman",
"ts": ISODate("2013-04-08T19:48:11-0400"),
"project": "gitstreamer",
"msg": "turning this into a webapp"
}
!

25. CRUD

27. test> db.test.find()
Fetched 0 record(s) in 1ms -- Index[none]

28. test> db.test.find()
Fetched 0 record(s) in 1ms -- Index[none]
test> db.test.insert({'hello': 'world'})
Inserted 1 record(s) in 1ms
Insert WriteResult({
"ok": 1,
"n": 1
})

29. test> db.test.find()
Fetched 0 record(s) in 1ms -- Index[none]
test> db.test.insert({'hello': 'world'})
Inserted 1 record(s) in 1ms
Insert WriteResult({
"ok": 1,
"n": 1
})
test> db.test.find({'hello': 'world'})
{
"_id": ObjectId("52d61af21486ef9e06d6d41a"),
"hello": "world"
}
Fetched 1 record(s) in 0ms -- Index[none]

30. test> db.test.update({'hello': 'world'}, {$set: {'hello': 'welt'}})
Updated 1 existing record(s) in 0ms
Update WriteResult({
"ok": 1,
"n": 1
})
test> db.test.find()
Fetched 0 record(s) in 1ms -- Index[none]
test> db.test.insert({'hello': 'world'})
Inserted 1 record(s) in 1ms
Insert WriteResult({
"ok": 1,
"n": 1
})
test> db.test.find({'hello': 'world'})
{
"_id": ObjectId("52d61af21486ef9e06d6d41a"),
"hello": "world"
}
Fetched 1 record(s) in 0ms -- Index[none]

32. Lots of Operators!

36. Build Something
Awesome!

37. Thanks!
@jrhunt