bet188足球-Schemaless Data Structures

In recent years,there's been an increasing amount of talk about the advantages of schemaless data.Being schemaless is one of the main reasons for interest inNoSQL databases.But there are many subtleties involved in schemalessness,both with respect to databases and in-memory data structures.These subtleties are present both in the meaning of schemaless and in the advantages and disadvantages of using a schemaless approach..

7 January 2013

To understand schemaless

Implicit Schema

Schemaless relational

Storage and Predicate Schemas

Implicit schemas are hidden

Custom fields

Non-uniform types

Schema migration

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