testing> show dbs
admin 40.00KiBconfig 12.00KiBlocal 40.00KiBtesting> db
DBQueryDBRef db
testing> db.message.insertOne({... user:"tom",... age:"23",... log:"Hello, MongoDB!"...}){acknowledged:true,insertedId:ObjectId("64a6ed38759a9d8c994b8567")}testing> show collections
message
testing> db.message.insertOne({user:"billy",age:23,log:"Hello, MongoDB is Fun!!"}){acknowledged:true,insertedId:ObjectId("64a6ed67759a9d8c994b8568")}testing> db.messagedb.messagetesting> db.message.find()[{_id:ObjectId("64a6ed38759a9d8c994b8567"),user:'tom',age:'23',log:'Hello, MongoDB!'},{_id:ObjectId("64a6ed67759a9d8c994b8568"),user:'billy',age:23,log:'Hello, MongoDB is Fun!!'}]