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Mongo db datatypes

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zarigatongy

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MongoDB DataTypes zariga.com
DataType • Null Datatype : ,“mName”:null- • String : ,“fName”:”anish”- • Boolean : ,“married”:false} • Date : ,“accountOpeningDate”: new Date()- • Array : ,“posts” : *“good”,”bad”,”average”+- • embeddedDocument : ,“publisher" : ,“name" : “address"-- • BSON (Covered Later) • ObjectId • More detailed http://api.mongodb.org/perl/current/MongoDB/DataTyp es.html zariga.com
Most important the AutoGenerated Object ID DataType • Size 12 bytes • First 4 refer to timeStamp (513c60fa) • Next 3 byte : hash of the hostname (b2080f) • Next 2 bytes taken from the PID (8932) • Last three byte is increment counter (86d0a4) Example > db.user.find() • { "_id" : ObjectId("513c60fab2080f893286d0a4"), "lName" : "anish", "date" : ISODate("2013-03- 10T10:31:18.632Z") } zariga.com
•Thanks for Watching feedback appreciated……………… ………… zariga.com

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Mongo db datatypes

  • 2. DataType • Null Datatype : ,“mName”:null- • String : ,“fName”:”anish”- • Boolean : ,“married”:false} • Date : ,“accountOpeningDate”: new Date()- • Array : ,“posts” : *“good”,”bad”,”average”+- • embeddedDocument : ,“publisher" : ,“name" : “address"-- • BSON (Covered Later) • ObjectId • More detailed http://api.mongodb.org/perl/current/MongoDB/DataTyp es.html zariga.com
  • 3. Most important the AutoGenerated Object ID DataType • Size 12 bytes • First 4 refer to timeStamp (513c60fa) • Next 3 byte : hash of the hostname (b2080f) • Next 2 bytes taken from the PID (8932) • Last three byte is increment counter (86d0a4) Example > db.user.find() • { "_id" : ObjectId("513c60fab2080f893286d0a4"), "lName" : "anish", "date" : ISODate("2013-03- 10T10:31:18.632Z") } zariga.com