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Can a blockchain be stored in SQL or even a noSQL database?

From what I know, the blockchain database is not stored in any place, which means that the records stored in it are really public and easy to check. For a hacker, there is no centralized version of this information. Hosted on millions of computers at the same time, its data is available to everyone on the Internet.
So my question is, can we store blockchain in sql for example? or can it be saved only in a database that works by itself?

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There are several options for storing data in decentralized block applications. Decentralized storage options:

  • , IPFS, Storj, Sia, Ethereum Swarm ..
  • , Apache Cassandra, Rethink DB ..
  • BigChainDB
  • DB

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  • , InterPlanetary File System. IPFS . BitTorrent Distributed Hash Table. . - , . , - . , . BitTorrent. . , . , - . , . , , .
  • . , IPFS. - , , , Dropbox. , , , . . , Sia, Storj, Ethereum Swarm. , . , . , , . , , , .
  • . , noSql. noSql? SQL - CAP-. , , . NoSQL , " ", . , MongoDB, Apache Cassandra, RethinkDB .. - , , , , . . . , node .
  • BigChainDB: BigChainDB, , . -, . , . BigChainDB RethinkDB, NoSQL . BigChainDB . ​​ - noSQL. BigChainDB ( BDB ) . - BigChainDB ! BDB node RethinkDB. BigChainDB promises, - , . BigChainDB . , , , BigPrivateBlockchain. .
  • DB. . noSql. , , . Ties.Network: ties.network - Cassandra : TiesDB noSQL . Ethereum - . . , . , . . , . . -.

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Source: https://habr.com/ru/post/1692620/

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