mongodb插入文档数据1.insert插入单条数据info={ "name":"teacher01","num":01,"age":33,"sex":"man","phone":18782940194,"address":"成都龙泉"}db.teacher.insert

Mongodb聚合函数查询1.match函数db.person.aggregate([{"$match":{"address":"龙泉"}}])2.group分组查询db.person.aggregate([{$group:{_id:"$address",count:{$sum:1}}}])3.按条件分组查询db.person.aggregate([{$match:{se

Mongodb查询排序操作1.通过1控制正序显示db.teacher.find().sort({"_id":1})2.通过-1控制倒序显示db.teacher.find().sort({"_id":-1})

Windows安装与启动MongoDB下载企业版-收费社区版-免费下载Mongodb https://www.mongodb.com/try/download/community选择版本稳定版5.0.9选择平台Windows选择安装包类型ZIP压缩版解压即用启动MongoDB通过命令启动mongod.exe--dbpath=path--logpa