PyNinja的博客

一、插入文档 db.stus.insert({name:"猪八戒",age:28,gender:"男"}) db.stus.insert([ {name:"猪八戒",age:28,gender:"男"} {name:"孙悟空",age:18,gender:"男"} {name:"唐僧",age:24,gender:"男"} {name:"白骨精",age:22,ge...

查询内嵌，循环，push添加 db.users.update( {username:"swk"},{$set: {hobby: {cities:["beijing","shanghai"],movies:["sanguo","hero"]}} } ) 查询内嵌文档可通过.的形式来匹配，注意加引号 db.users.find({"hobby.movies":...

文档间的关系 一、One to One 例：夫妻 db.WifeAndHusband.insert([ { name:"黄蓉",husband:{name:"郭靖"} }, { name:"潘金莲",husband:{name:"武大郎"} }, ]) db.WifeAndHusband.find() 二、One to Many...