Podcast
Questions and Answers
What is the primary function of a database interface in a NoSQL data service?
What is the primary function of a database interface in a NoSQL data service?
- To provide a structured schema for data storage
- To perform complex computations on data
- To enable data retrieval using SQL queries
- To act as a router of information to the central database (correct)
What is the term commonly used to describe a database interface?
What is the term commonly used to describe a database interface?
- Central Database Coordinator
- Database Engine
- Data Router
- Interface Engine (correct)
What type of NoSQL database is MongoDB classified as?
What type of NoSQL database is MongoDB classified as?
- Document-Oriented Database (correct)
- Key-Value Store
- Column-Family Store
- Graph Database
What is the primary advantage of using a NoSQL database?
What is the primary advantage of using a NoSQL database?
What is the name of the instructor teaching the course on Medical Distributed Application Development?
What is the name of the instructor teaching the course on Medical Distributed Application Development?
What is the title of the course being taught by Hisham Arafat Shehata?
What is the title of the course being taught by Hisham Arafat Shehata?
What is the primary focus of the course agenda?
What is the primary focus of the course agenda?
What is the name of the university where Hisham Arafat Shehata is an Adjunct Instructor?
What is the name of the university where Hisham Arafat Shehata is an Adjunct Instructor?
What is the title of the lab practice in the course agenda?
What is the title of the lab practice in the course agenda?
What is the term used to describe the simple building blocks in a NoSQL database?
What is the term used to describe the simple building blocks in a NoSQL database?
What is the role of Hisham Arafat Shehata in addition to being an instructor?
What is the role of Hisham Arafat Shehata in addition to being an instructor?
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Study Notes
SQL, NoSQL, and NewSQL
- SQL, NoSQL, and NewSQL are different types of databases
- NoSQL databases can be classified into four types: Columnar Database, Key-Value Stores, Document Stores, and Graph Database
MongoDB
- MongoDB is a NoSQL, open source, document-oriented database designed for scalability and developer agility
- It stores data in JSON-like documents with dynamic schemas (schema-free, schemaless)
- MongoDB bridges the gap between key-value stores (fast and scalable) and relational databases (rich functionality)
MongoDB Goals
- Horizontal scaling out
- Query Routers (mongos)
- Shard keys: range based sharding, cardinality, and avoiding hotspotting
Data Model
- BSON format (binary JSON) for storing data
- Lightweight, traversable, and efficient
- Easy to map to modern object-oriented languages without a complicated ORM layer
MongoDB Model
- A document is a single unit of data (like a tuple in RDBMS)
- A collection is a group of similar documents
- Each document in a collection must have a unique Id
- Field names cannot start with the $ character or contain the . character
MongoDB Architecture
- MongoDB is a distributed document database
NoSQL Data Services
- Document Datastores
- MongoDB Architecture
- Distributed Models in MongoDB
- Document Schemas and CRUD Operations
- Cloud Services for MongoDB
- Lab Practice – Working with MongoDB
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