插入張瓜趙四
db.Person.insert({"name":"張瓜","age":10})WriteResult({"nInserted":1})
db.Person.insert({"name":"趙四","age":20})WriteResult({"nInserted":1})
查詢張瓜
> db.Person.find({"name":"張瓜"}){"_id":ObjectId("5617275737a5aa2cafdb4b84"),"name":"張瓜","age":10}>
查詢所有信息
db.Person.find()
{"_id":ObjectId("5617277b37a5aa2cafdb4b85"),"name":"趙四","age":20}{"_id":ObjectId("56172d069d1af21ad1f769c7"),"name":"張瓜","age":40}
改張瓜年齡
db.Person.update({"name":"張瓜"}, {"name":"張瓜","age":40})WriteResult({"nMatched":1,"nUpserted":0,"nModified":1})
查詢張瓜此時年齡變成40
db.Person.find({"name":"張瓜"}) ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?{"_id":ObjectId("56172d069d1af21ad1f769c7"),"name":"張瓜","age":40}
刪除
db.Person.remove({"name":"張瓜"})WriteResult({"nRemoved":1})>
db.Person.find()
此時已刪除張瓜往声，顯示趙四信息
{"_id":ObjectId("5617277b37a5aa2cafdb4b85"),"name":"趙四","age":20}
