Firestore collections and documents in GCP - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Firestore collection?

A Firestore collection is like a folder that holds multiple documents. It organizes data into groups so you can find and manage related information easily.

beginner

What is a Firestore document?

A Firestore document is a single record inside a collection. It stores data as fields with values, similar to a row in a spreadsheet.

intermediate

Can a Firestore document contain subcollections?

Yes, a Firestore document can have subcollections inside it. This lets you create nested data structures, like folders inside folders.

beginner

How do Firestore collections and documents relate to each other?

Collections hold documents, and documents hold data fields or subcollections. You always access data by specifying a collection and then a document inside it.

intermediate

Why does Firestore use collections and documents instead of tables and rows?

Firestore uses collections and documents to allow flexible, hierarchical data storage. This helps store complex data easily and scale well in cloud apps.

What is the smallest unit of data storage in Firestore?

A Field

B Document

C Collection

D Database

A document is the smallest unit that stores data fields in Firestore.

Which of these can contain multiple documents in Firestore?

A Subcollection

B Document

C Field

D Collection

A collection holds multiple documents.

Can a Firestore document exist without being inside a collection?

A No, documents must be inside collections

B Yes, documents can stand alone

C Only if it has subcollections

D Only in the root database

Documents must always be inside collections in Firestore.

What is a subcollection in Firestore?

A A database inside Firestore

B A field inside a document

C A collection inside a document

D A document inside a collection

A subcollection is a collection nested inside a document.

How do you access data in Firestore?

A By specifying a collection and then a document

B By specifying a database only

C By specifying a field only

D By specifying a subcollection only

You access data by choosing a collection and then a document inside it.

Explain how Firestore organizes data using collections and documents.

Think of folders and files on your computer.

Describe why Firestore uses collections and documents instead of traditional tables and rows.

Consider how cloud apps need to store different types of data.