Podcast
Questions and Answers
What is the purpose of a database schema?
What is the purpose of a database schema?
- To generate the model data of a view quickly
- To handle app evolution over time
- To fetch correct app data
- To provide a good organization of storing application data (correct)
Which type of data organization does the relational model use?
Which type of data organization does the relational model use?
- Key-Value pairs
- Tables (correct)
- JSON documents
- Graphs
What is one of the key features of a good storage system according to the text?
What is one of the key features of a good storage system according to the text?
- Being easily scalable from all over the world
- Quickly generating model data for views
- Storing data in multiple formats like files, objects, and networks
- Always being fault tolerant and reliable (correct)
How are rows in a relational database table also known as?
How are rows in a relational database table also known as?
What is the main role of a Mongoose model in a MongoDB database?
What is the main role of a Mongoose model in a MongoDB database?
Which type of system property is crucial for a storage system's availability?
Which type of system property is crucial for a storage system's availability?
What is the purpose of a primary key in a database table?
What is the purpose of a primary key in a database table?
In the context of web applications, what does Rails' Active Record do?
In the context of web applications, what does Rails' Active Record do?
What is MongoDB's data model based on?
What is MongoDB's data model based on?
How does MongoDB ensure fast lookups?
How does MongoDB ensure fast lookups?
Which feature of NoSQL databases like MongoDB aims to handle scalability and reliability?
Which feature of NoSQL databases like MongoDB aims to handle scalability and reliability?
How do web applications benefit from using secondary keys in database tables?
How do web applications benefit from using secondary keys in database tables?
What is the purpose of relational algebra in SQL?
What is the purpose of relational algebra in SQL?
In a database, what is the primary function of keys and indexes?
In a database, what is the primary function of keys and indexes?
What does the AUTO_INCREMENT attribute in SQL help with?
What does the AUTO_INCREMENT attribute in SQL help with?
Which SQL command is used to delete specific rows from a table based on a condition?
Which SQL command is used to delete specific rows from a table based on a condition?
Why are indexes important for database performance?
Why are indexes important for database performance?
What is the main benefit of using structured query language (SQL) for querying databases?
What is the main benefit of using structured query language (SQL) for querying databases?
