Chapter 2 ended. Three types of data -models: relational, document and graph. relational is SQL (structured, normalized, foreignkey-primary key based. easy, think about joins before, ACID(atomicity,consistency,isolation,durability)). document(noSQL,supports many to many relationship(unlike hierachy ), unstructured, enforce on read constraints, no relation within documents), Graph(inter-doc relation, vertices,edges),
— Mar 21, 2020 07:01PM
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