Redis / MongoDB / MySQL / PostgreSQL Essentials

Master Redis / MongoDB / MySQL / PostgreSQL for Data Storage & Querying

Four leading database engines for caching, NoSQL, transactional, and analytical workloads across modern applications.

Models Deployed

12,430+

Active Developers

58,900+

Key Features

In-Memory Caching (Redis)

Store key-value pairs in memory for ultra-fast access and pub/sub messaging.

Document Storage (MongoDB)

Store flexible JSON-like documents with dynamic schemas and indexing.

Relational Queries (MySQL)

Use SQL to manage structured data with ACID compliance and joins.

Advanced Analytics (PostgreSQL)

Run complex queries, CTEs, and geospatial analysis with powerful extensions.

How It Works

Choose Database

Pick Redis for caching, MongoDB for NoSQL, MySQL/PostgreSQL for relational data.

Install & Configure

Install via package manager, Docker, or cloud service and set up access.

Define Schema

Use tables (SQL) or collections (NoSQL) to structure your data.

Query & Index

Use SQL or query language to fetch, filter, and index data efficiently.

Integrate & Scale

Connect to backend apps and scale with replication, sharding, or clustering.

Code Example

// Redis / MongoDB / MySQL / PostgreSQL Model Training

// Redis (Node.js)
const redis = require('redis');
const client = redis.createClient();
client.set('key', 'value');

// MongoDB (Node.js)
const { MongoClient } = require('mongodb');
const client = new MongoClient(uri);
await client.db("mydb").collection("users").insertOne({ name: "Tanu" });

// MySQL (SQL)
SELECT * FROM users WHERE email = 'tanu@example.com';

// PostgreSQL (SQL)
SELECT name FROM users WHERE created_at > NOW() - INTERVAL '7 days';

Use Cases

Session Caching

Use Redis to store user sessions and reduce database load.

Flexible Data Models

Use MongoDB for dynamic schemas in content, logs, or IoT data.

Transactional Systems

Use MySQL for banking, e-commerce, and ERP systems with ACID guarantees.

Data Warehousing

Use PostgreSQL for analytics, reporting, and geospatial queries.

Integrations & Resources

Explore Redis / MongoDB / MySQL / PostgreSQL’s ecosystem and find the tools, platforms, and docs to accelerate your workflow.

Popular Integrations

Node.js, Python, Java, Go
Docker, Kubernetes, Terraform
GraphQL, REST APIs
RedisInsight, MongoDB Atlas, phpMyAdmin, pgAdmin
GitHub, GitLab, Bitbucket

Helpful Resources

Redis Docs MongoDB Docs MySQL Docs PostgreSQL Docs Redis GitHub MongoDB GitHub MySQL GitHub PostgreSQL GitHub

FAQ

Common questions about Redis / MongoDB / MySQL / PostgreSQL’s capabilities, usage, and ecosystem.