Collection { "GNP": 4834, "_id": "00005de917d80000000000000023", "Code": "BWA", "Name": "Botswana", "IndepYear": 1966, "geography": { "Region": "Southern Africa", "Continent": "Africa", "SurfaceArea": 581730 }, "government": { "HeadOfState": "Festus G. Mogae", "GovernmentForm": "Republic" }, "demographics": { "Population": 1622000, "LifeExpectancy": 39.29999923706055 } } This document shows that the values of keys can be simple data types, such as integers or strings, but can also contain other documents, arrays, and lists of documents. For example, the  geography  key’s value consists of multiple key-value pairs. A JSON document is represented internally using the MySQL binary JSON object, through the  JSON  MySQL datatype. The most important differences between a document and the tables known from traditional relational databases are that the structure of a document does not have to be defined in advance, and a collection can contain multiple documents with different structures. Relational tables on the other hand require that their structure be defined, and all rows in the table must contain the same columns. A collection is a container that is used to store JSON documents in a MySQL database. Applications usually run operations against a collection of documents, for example to find a specific document. The four basic operations that can be issued against a collection are Create, Read, Update and Delete (CRUD). In terms of MySQL this means: CRUD Operations Collection 20.3 JavaScript Quick-Start Guide: MySQL Shell for Document Store •Create a new document (insertion or addition) •Read one or more documents (queries) •Update one or more documents •Delete one or more documents •Introduction to MySQL functionality, MySQL Shell, and the  world_x  example schema. •Operations to manage collections and documents. •Operations to manage relational tables. This quick-start guide provides instructions to begin prototyping document store applications interactively with MySQL Shell. The guide includes the following topics: 3843