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MongoDB
MongoDB
Notes for Professionals
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Notes for Professionals
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the property of their respective owners
Contents
About
................................................................................................................................................................................... 1
Chapter 1: Getting started with MongoDB
....................................................................................................... 2
Section 1.1: Execution of a JavaScript file in MongoDB
............................................................................................. 2
Section 1.2: Making the output of find readable in shell
............................................................................................ 2
Section 1.3: Complementary Terms
............................................................................................................................. 3
Section 1.4: Installation
.................................................................................................................................................. 3
Section 1.5: Basic commands on mongo shell
............................................................................................................ 6
Section 1.6: Hello World
................................................................................................................................................. 6
Chapter 2: CRUD Operation
..................................................................................................................................... 7
Section 2.1: Create
......................................................................................................................................................... 7
Section 2.2: Update
....................................................................................................................................................... 7
Section 2.3: Delete
......................................................................................................................................................... 8
Section 2.4: Read
........................................................................................................................................................... 8
Section 2.5: Update of embedded documents
.......................................................................................................... 9
Section 2.6: More update operators
.......................................................................................................................... 10
Section 2.7: "multi" Parameter while updating multiple documents
...................................................................... 10
Chapter 3: Getting database information
..................................................................................................... 11
Section 3.1: List all collections in database
............................................................................................................... 11
Section 3.2: List all databases
.................................................................................................................................... 11
Chapter 4: Querying for Data (Getting Started)
....................................................................................... 12
Section 4.1: Find()
......................................................................................................................................................... 12
Section 4.2: FindOne()
................................................................................................................................................. 12
Section 4.3: limit, skip, sort and count the results of the find() method
................................................................ 12
Section 4.4: Query Document - Using AND, OR and IN Conditions
....................................................................... 14
Section 4.5: find() method with Projection
................................................................................................................ 16
Section 4.6: Find() method with Projection
............................................................................................................... 16
Chapter 5: Update Operators
.............................................................................................................................. 18
Section 5.1: $set operator to update specified field(s) in document(s)
................................................................. 18
Chapter 6: Upserts and Inserts
............................................................................................................................ 20
Section 6.1: Insert a document
................................................................................................................................... 20
Chapter 7: Collections
.............................................................................................................................................. 21
Section 7.1: Create a Collection
.................................................................................................................................. 21
Section 7.2: Drop Collection
....................................................................................................................................... 22
Chapter 8: Aggregation
........................................................................................................................................... 23
Section 8.1: Count
........................................................................................................................................................ 23
Section 8.2: Sum
.......................................................................................................................................................... 23
Section 8.3: Average
................................................................................................................................................... 24
Section 8.4: Operations with arrays
.......................................................................................................................... 25
Section 8.5: Aggregate query examples useful for work and learning
................................................................. 25
Section 8.6: Match
....................................................................................................................................................... 29
Section 8.7: Get sample data
..................................................................................................................................... 30
Section 8.8: Remove docs that have a duplicate field in a collection (dedupe)
.................................................. 30
Section 8.9: Left Outer Join with aggregation ( $Lookup)
..................................................................................... 30
Section 8.10: Server Aggregation
.............................................................................................................................. 31
Section 8.11: Aggregation in a Server Method
.......................................................................................................... 31
Section 8.12: Java and Spring example
.................................................................................................................... 32
Chapter 9: Indexes
...................................................................................................................................................... 34
Section 9.1: Index Creation Basics
.............................................................................................................................. 34
Section 9.2: Dropping/Deleting an Index
.................................................................................................................. 36
Section 9.3: Sparse indexes and Partial indexes
...................................................................................................... 36
Section 9.4: Get Indices of a Collection
..................................................................................................................... 37
Section 9.5: Compound
............................................................................................................................................... 38
Section 9.6: Unique Index
........................................................................................................................................... 38
Section 9.7: Single field
............................................................................................................................................... 38
Section 9.8: Delete
....................................................................................................................................................... 38
Section 9.9: List
............................................................................................................................................................ 39
Chapter 10: Bulk Operations
................................................................................................................................. 40
Section 10.1: Converting a field to another type and updating the entire collection in Bulk
............................... 40
Chapter 11: 2dsphere Index
.................................................................................................................................... 43
Section 11.1: Create a 2dsphere Index
........................................................................................................................ 43
Chapter 12: Pluggable Storage Engines
.......................................................................................................... 44
Section 12.1: WiredTiger
.............................................................................................................................................. 44
Section 12.2: MMAP
...................................................................................................................................................... 44
Section 12.3: In-memory
............................................................................................................................................. 44
Section 12.4: mongo-rocks
......................................................................................................................................... 44
Section 12.5: Fusion-io
................................................................................................................................................. 44
Section 12.6: TokuMX
................................................................................................................................................... 45
Chapter 13: Java Driver
........................................................................................................................................... 46
Section 13.1: Fetch Collection data with condition
.................................................................................................... 46
Section 13.2: Create a database user
........................................................................................................................ 46
Section 13.3: Create a tailable cursor
........................................................................................................................ 46
Chapter 14: Python Driver
...................................................................................................................................... 48
Section 14.1: Connect to MongoDB using pymongo
................................................................................................ 48
Section 14.2: PyMongo queries
.................................................................................................................................. 48
Section 14.3: Update all documents in a collection using PyMongo
...................................................................... 49
Chapter 15: Mongo as Shards
............................................................................................................................... 50
Section 15.1: Sharding Environment Setup
................................................................................................................ 50
Chapter 16: Replication
............................................................................................................................................ 51
Section 16.1: Basic configuration with three nodes
.................................................................................................. 51
Chapter 17: Mongo as a Replica Set
................................................................................................................. 53
Section 17.1: Mongodb as a Replica Set
.................................................................................................................... 53
Section 17.2: Check MongoDB Replica Set states
.................................................................................................... 54
Chapter 18: MongoDB - Configure a ReplicaSet to support TLS/SSL
............................................. 56
Section 18.1: How to configure a ReplicaSet to support TLS/SSL?
......................................................................... 56
Section 18.2: How to connect your Client (Mongo Shell) to a ReplicaSet?
............................................................ 58
Chapter 19: Authentication Mechanisms in MongoDB
.............................................................................. 60
Section 19.1: Authentication Mechanisms
.................................................................................................................. 60
Chapter 20: MongoDB Authorization Model
................................................................................................. 61
Section 20.1: Build-in Roles
......................................................................................................................................... 61
Chapter 21: Configuration
...................................................................................................................................... 62
Section 21.1: Starting mongo with a specific config file
........................................................................................... 63
Chapter 22: Backing up and Restoring Data
................................................................................................ 64
Section 22.1: Basic mongodump of local default mongod instance
...................................................................... 64
Section 22.2: Basic mongorestore of local default mongod dump
....................................................................... 64
Section 22.3: mongoimport with JSON
..................................................................................................................... 64
Section 22.4: mongoimport with CSV
........................................................................................................................ 65
Chapter 23: Upgrading MongoDB version
..................................................................................................... 66
Section 23.1: Upgrading to 3.4 on Ubuntu 16.04 using apt
...................................................................................... 66
Credits
.............................................................................................................................................................................. 67
You may also like
........................................................................................................................................................ 69
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