db

db

SQL: Structured Query Language NoSQL: not only SQL (键值、文档、列存储、图) NewSQL: combine SQL and NoSQL ?? SQL vs NoSQL vs NewSQL ACID Atomicity, Consistency, Isolation, Durability to maintain the reliability of transactions. Atomicity – completion of the transaction as a whole or none at all Consistency – assures the stable state of the database with or without changes Isolation