Database
A database is an organized collection of data stored and accessed electronically, typically managed by a centralized Database Management System (DBMS)
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A database is an organized collection of data stored and accessed electronically, typically managed by a centralized Dat...
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Sep 2026 · Score de fraîcheur: 50%
Qu'est-ce que Database ?
A database is an organized collection of data stored and accessed electronically, typically managed by a centralized Database Management System (DBMS)
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Traditional databases (SQL like PostgreSQL, NoSQL like MongoDB) store and query data on centralized servers. Blockchain apps commonly pair an on-chain source of truth with an off-chain database for caching, search, and analytics. Decentrali
Databases are the invisible backbone of most dapps — handling user profiles, content, and indexed chain data. The tension between centralized databases (fast, familiar) and decentralized storage (resilient, aligned with Web3) is a defining
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1. What Is a Database
A database is an organized collection of data stored and accessed electronically, managed by a database management system (DBMS). In Web3, databases store application state, index blockchain data, and power dapp backends.
2. How It Works
Traditional databases (SQL like PostgreSQL, NoSQL like MongoDB) store and query data on centralized servers. Blockchain apps commonly pair an on-chain source of truth with an off-chain database for caching, search, and analytics. Decentralized alternatives (Ceramic, OrbitDB, Tableland) store data across networks, trading performance for censorship resistance. Database choice shapes query power, latency, and cost.
3. Why It Matters
Databases are the invisible backbone of most dapps — handling user profiles, content, and indexed chain data. The tension between centralized databases (fast, familiar) and decentralized storage (resilient, aligned with Web3) is a defining architectural decision for builders.
4. Key Facts
- PostgreSQL is the dominant choice for dapp backends
- The Graph indexes chain data into queryable databases
- Tableland and Ceramic offer on-chain-attached databases
- Database outages have taken down major dapps
5. Related Concepts
- data-indexing
- indexer
- decentralized-application
- node-provider
Questions fréquentes
What is Database?
A database is an organized collection of data stored and accessed electronically, typically managed by a centralized Database Management System (DBMS)
How does Database work?
A database is an organized collection of data stored and accessed electronically, managed by a database management system (DBMS). In Web3, databases store application state, index blockchain data, and power dapp backends. Traditional databases (SQL like PostgreSQL, NoSQL like MongoDB) store and que
Why does Database matter in Web3?
- indexer - decentralized-application - node-provider