WebApr 20, 2024 · A collection of user-chosen database objects such as tables, views, etc. Useful for security and access management. The term database schema is also sometimes used to refer to other things, such as a flowchart that provides a visual representation of a database (i.e. an entity-relationship diagram, or ER diagram). WebInstagram database Clone schema This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the …
Schematizing an Instagram-Style System for Likes, Hashtags
WebSep 23, 2024 · Try this SQL query from Ka's submission to our Instagram challenge. It's for analyzing the performance of different types of Instagram media: SELECT media_type, SUM (like_count) as total_likes, AVG (like_count) as avg_likes, SUM (comments_count) as total_comments, AVG (comments_count) as avg_comments, COUNT ( distinct id) as … WebOct 8, 2024 · In PostgreSQL, a database schema is a namespace with named database objects. This includes tables, views, indexes, data types, functions, and operators. In this … fityoga
Design Instagram. Let’s design a photo-sharing service
The server-side code is powered by Django Python. All the web and async servers run in a distributed environment and are stateless. The below diagram shows the architecture of Instagram: The backend uses various storage technologies such as Cassandra, PostgreSQL, Memcache, and Redis to serve … See more RabbitMQ and Celery handle asynchronous tasks such as sending notifications to the users and other system background … See more The trending backend is a stream processingapplication that contains four nodes/components connected linearly. The role of the nodes … See more Data across the cluster is eventually consistent, cache tiers are co-located with the web servers in the same data center to avoid latency. The data is classified into global and local data which helps the team to scale. Global data … See more PostgreSQLis the primary database of the application, it stores most of the data of the platform such as user data, photos, tags, meta-tags, etc. … See more WebFeb 16, 2024 · There are six types of database schemas: flat model, hierarchical model, network model, relational model, star schema, and snowflake schema. The right database schema design helps you … WebDec 30, 2012 · With more than 25 photos and 90 likes every second, we store a lot of data here at Instagram. To make sure all of our important data fits into memory and is … fityogaprof