Bulk upload - Ordered & Unordered

Bulk upload
===============


1. Unordered - Faster execution but data will not be executed in the same order as mentioned
2. Ordered - Slower but execution will be in the same order how it's mentioned for execution

Examples

(1) Unordered

var bulk=db.items.initializeUnorderedBulkOp()

bulk.insert({item:"abc12c", defaultqty:100,status:"A",points=100});
db.items.find()

bulk.insert({item:"ijk123",defaultqty:200, status:"A", points:200});
bulk.insert({item:"mop123",defaultqty:0, status:"P", points:0});

bulk.execute()

db.items.find()


(2) Ordered

var Unbulk=db.items.initializeOrderedBulkOp()

Unbulk.insert({item:"abc13c", defaultqty:100,status:"A",points:200});
Unbulk.insert({item:"abc14c", defaultqty:100,status:"A",points:300});

Unbulk.find({item:"abc12c"}).remove()
Unbulk.find({item:"mop123"}).remove()

Unbulk.find({item:"ijk123"}).update({$inc:{points:1}})

Unbulk.execute()

db.items.find()