https://www.youtube.com/watch?v=Ofux_4c94FI
How do queries work in Cloud Firestore? What kinds of queries can you run, and what kind can't you run? And what are composite indexes, anyway? Find out the

https://www.youtube.com/playlist?list=PLl-K7zZEsYLluG5MCVEzXAQ7ACZBCuZgZ
What is Cloud Firestore? What is a NoSQL database? How do queries work? To help you navigate Cloud Firestore more easily, we've created this new series focus

https://firebase.google.com/docs/firestore/query-data/queries
Perform simple and compound queries in Cloud Firestore. Cloud Firestore provides powerful query functionality for specifying which documents you want to retrieve from a collection or collection group. These queries can also be used with either get() or addSnapshotListener(), as described in Get Data and Get Realtime Updates.

https://www.youtube.com/watch?v=haMOUb3KVSo
It's important to get your Cloud Firestore data structure in order. Knowing when to use Maps, Arrays and Subcollections can get a little tricky. In the last

https://firebase.google.com/learn/quizzes/firebase-firestore/cloud-firestore
Get to know Cloud Firestore. Return to pathway Fill-in-the-blanks Enter one or more words to complete the sentence. Most NoSQL databases lack ___, which means that they don't place any restrictions on the kind of data that you can input. The time that it takes to run a query is ___ the number of results that you get back.

https://firebase.google.com/learn/pathways/firebase-firestore
Build web apps with Cloud Firestore quiz. Test your knowledge of web apps back by Cloud Firestore and earn the Get to Know Cloud Firestore badge. You must answer 7 of the 9 questions correctly. Take the quiz. Learn to efficiently and securely store and sync app data with Cloud Firestore.

https://medium.com/firebase-tips-tricks/how-to-read-data-from-cloud-firestore-using-get-bf03b6ee4953
1. When it comes to reading data from Cloud Firestore, there are two options available. The first one is to read the data using a persistent listener, meaning that we'll always be in sync with

https://medium.com/google-developers/update-and-customize-queries-on-your-cloud-firestore-data-for-actions-on-google-7eb1010b417f
Update a document. We're only going to discuss the code changes necessary to support the top three features. If you're curious about the existing code, you can check out this sample here

https://cloud.google.com/blog/topics/developers-practitioners/all-you-need-know-about-firestore-cheatsheet
Firestore is a serverless, fully managed NoSQL document database that scales from zero to global scale without configuration or downtime. Here's what makes Firestore unique: Ideal for rapid, flexible and scalable web and mobile development with direct connectivity to the database. Supports effortless real time data synchronization with

https://stackoverflow.com/questions/65921343/firestore-query-usage
1. Firestore uses sorted indices and a binary search pattern. This makes reads extremely fast and basically makes it impossible to create a slow query. An overview of Firestore queries is published here. And there's a detailed explanation of the indices in Todd's How do queries work in Cloud Firestore? video at time 5:30.

https://www.youtube.com/watch?v=BjtxPj6jRM8
In this episode of Firebase Fundamentals, Todd Kerpelman will show you how to get up and running quickly using Firestore in your web application. Chapters:0:

https://cloud.google.com/firestore/docs/tutorials
Build a restaurant recommendation service using Firestore and the Firebase Web SDK. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark

https://firebase.google.com/docs/firestore/quickstart
Using the Cloud Firestore emulator involves just a few steps: Adding a line of code to your app's test config to connect to the emulator. From the root of your local project directory, running firebase emulators:start. Making calls from your app's prototype code using a Cloud Firestore platform SDK as usual.

https://www.youtube.com/watch?v=v_hR4K4auoQ
Cloud Firestore is a horizontally scaling document-model NoSQL database in the cloud. But what does that actually mean? Welcome to our new series, Get to Kno

https://medium.com/antigua-mobile/querying-a-firestore-collection-with-multiple-inequality-filters-on-different-fields-85e4bb342ec7
"Get to know Cloud Firestore" on YouTube (link with timestamp). After learning about this fact, a possible solution for our example would be to use a "starts_at" filter on the Firestore

https://www.youtube.com/watch?v=77XmRDtOL7c
On this episode of Get to know Cloud Firestore, we'll dig into some common patterns for using Cloud Functions and think about how you might want to use them

https://www.youtube.com/watch?v=eW5MdE3ZcAw
Wondering how to get started with security rules in your Cloud Firestore database? On this episode of Get to Know Cloud Firestore, Todd shows you how to make

https://stackoverflow.com/questions/59595938/firestore-possible-to-query-by-array-not-contains
The Get to know Cloud Firestore episode on how Firestore queries work. Your workaround is possible, and technically not even very complex. The only thing to keep in mind is that you'll need to load all artists. So the performance will be linear to the number of artists you have. This may be fine for your app at the moment, but it's something to

https://stackoverflow.com/questions/54969057/firestore-why-do-all-where-filters-have-to-be-on-the-same-field
Firestore only offers query operations for which it can maintain this performance guarantee. This is the main reason for the limitations you may find in the Firestore query API. To work around the limit, you'll typically perform the filtering, and ordering on the primary field in the query, and then sort on the secondary field client-side.