Tuesday, September 7, 2021

Google datastore: official web page from Google | 20 minutes study

Sept. 7, 2021

Here is the article. 

Highly scalable NoSQL database

Firestore is the next generation of Datastore. Learn more about upgrading to Firestore.

Datastore is a highly scalable NoSQL database for your applications. Datastore automatically handles sharding and replication, providing you with a highly available and durable database that scales automatically to handle your applications' load. Datastore provides a myriad of capabilities such as ACID transactions, SQL-like queries, indexes, and much more.


Simple and integrated

With Datastore's RESTful interface, data can easily be accessed by any deployment target. You can build solutions that span across App Engine and Compute Engine and rely on Datastore as the integration point.


Fast and highly scalable

Focus on building your applications without worrying about provisioning and load anticipation. Datastore scales seamlessly and automatically with your data, allowing applications to maintain high performance as they receive more traffic.


Easy-to-use query language

Datastore is a schemaless database, which allows you to worry less about making changes to your underlying data structure as your application evolves. Datastore provides a powerful query engine that allows you to search for data across multiple properties and sort as needed.

1. // List Google companies with fewer than 400 employees.

2. var companies = query.filter('name =', 'Google').filter('size <', 400);


Rich admin dashboard

View entity statistics, query your database, view indexes, and back up/restore your data.


Diverse data types

Datastore supports a variety of data types, including integers, floating-point numbers, strings, dates, and binary data, among others.


Multiple access methods

Access your data via our JSON API, open source clients, or community-maintained ORMs (Objectify, NDB).


ACID transactions

Ensure the integrity of your data by executing multiple datastore operations in a single transaction with ACID characteristics, so all the grouped operations succeed or all fail.


Fully managed

Datastore is fully managed, which means Google automatically handles sharding and replication in order to provide you with a highly available and consistent database.


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