MongoDB

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Current Release: 2.4.5 from 7/3/2013 (Linux 64-bit download length: 94827295 (90M))


$ ./bin/mongod --version
db version v2.4.5
Thu Jul  4 10:16:37.906 git version: a2ddc68ba7c9cee17bfe69ed840383ec3506602b


Document based
Documents like JavaScript objects

• CRUD
• save - create
• find - retrieve document
• update - modify existing document
• remove - delete (db.mycoll.remove(),  db.mycoll.remove({name:fred})
• Insert/Remove from collections
• $push - db.mycoll.update({name:Hank}, {$push: {languages:python}})
• $pull - db.mycoll.update({name:Cyndi}, {$pull: {songs:borderline}})

• Query operations:
• $gt - >
• $gte - >=
•  $lt - <
• $lte - <=
• $ne - !=
• $in - is in array
• $nin - ! in array
• $or - $or: [{this:that},{other:something else}]

$set - used to modify (db.mycollection.update({name:somename},{$set: {age:32}})

Maven dependencies

Mongo Authentication

Mongo Service Script