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CodeSignal

A Closer Look at Read Operations in MongoDB

via CodeSignal

Overview

Delve into advanced read operations in MongoDB, including using projection, comparison, logical, and element operators. This section also covers querying embedded fields and arrays, along with understanding cursor behaviors. We will be using the "comic_book_store_db" database.

Syllabus

  • Lesson 1: Using Projection for Clarity and Focus
    • Projection Usage in MongoDB
    • Refine Data Retrieval in MongoDB
    • Fix the MongoDB Queries
    • Meet The Guardians of the Galaxy
    • Excluding Unnecessary Fields
  • Lesson 2: Comparison Query Operators in MongoDB
    • Query with Comparison Operators
    • Using the Equality Operator Explicitly
    • Querying Comics Published Before 1964
    • Finding a Comic with Specific Issue Number Constraints
  • Lesson 3: Querying Embedded Fields and Arrays
    • Querying Comic Books with MongoDB
    • Searching for Spider-Man Comics
    • Fix the Comic Book Query
    • Searching for Comics by Genre
    • Hunting Down Stan Lee's Comics
  • Lesson 4: Logical Query Operators
    • Logical Query Operators in Action
    • Invert Logical Query in MongoDB
    • Logical MongoDB Query Fixes
    • Finding a Cross-Genre Comic Book
    • Finding Comics with Star-Lord or Spider-Man
    • Finding Non-Spider-Man Comic Books
    • Advanced Querying with MongoDB Logical Operators
  • Lesson 5: Element Query Operators
    • Finding Comics with an Alternate Title
    • Query Comic Books with Alter Ego Characters
    • Exploring MongoDB Field Type Queries
    • Find String Ratings in Comic Books
  • Lesson 6: Array Query Selectors
    • Array Query Selectors in Action
    • Finding Comic Books with Five Characters
    • Finding Comic Books by Genre
    • Finding a Character with Alter Ego
  • Lesson 7: Understanding Cursor
    • Master Basic Cursor Operations
    • Sorting Comics by Title
    • Sorting Comics By Title And Issue Nunmber
    • Counting Comic Books Featuring Iron Man
    • Skipping and Limiting Results
    • Retrieve, Sort, and Limit Adventure Comics

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