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https://github.com/udemy-course/Promotion
JSON数据结构: https://github.com/udemy-course/mongodb-cn/blob/master/chapter3/employee.json
查找和更新 https://github.com/udemy-course/mongodb-cn/blob/master/chapter3/employee_1.json
Document的嵌套 https://github.com/udemy-course/mongodb-cn/blob/master/chapter3/employee_2.json
MongoDB的Python驱动演示 https://github.com/udemy-course/mongodb-cn/blob/master/chapter4/test.py
一对一关系 https://github.com/udemy-course/mongodb-cn/blob/master/chapter5/one-one.json
一对多关系的聚合Aggregation https://github.com/udemy-course/mongodb-cn/blob/master/chapter5/aggregation.json
逻辑和比较操作符练习 https://github.com/udemy-course/mongodb-cn/blob/master/chapter6/movie.json
元素相关操作符 https://docs.mongodb.com/manual/reference/operator/query-element/
Array相关的操作符 https://github.com/udemy-course/mongodb-cn/blob/master/chapter6/array.json
updateOne,updateMany,$set回顾 https://github.com/udemy-course/mongodb-cn/blob/master/chapter6/people.json
单一字段的index https://github.com/udemy-course/mongodb-cn/blob/master/chapter7/index.json
使用unique index唯一值索引 https://github.com/udemy-course/mongodb-cn/blob/master/chapter7/people.json
寻找附近的餐厅 https://github.com/udemy-course/mongodb-cn/blob/master/chapter8/restaurant.json
判断是否在某一个区域内 https://github.com/udemy-course/mongodb-cn/blob/master/chapter8/neighborhood.json