$_server in is a php super global variable. By using this $_server super global variable we can get the information of server. $_server php super global is most impartment function.
Create Collection Syntax: db.createCollection("Collection Name"); Example: db.createCollection("users"); Delete collection in Mongodb Shell Command db.collection.drop() Find Collection in Mongodb Shell Command db.collection.find() Show all Collection in Mongodb Shell Command show collections Creat Collection in Mongodb Shell Command db.createCollection("users") Rename the Collection In Mongodb Shell Command db.collection.renameCollection() Update the single document in MongoDB collections Shell Command db.collection.updateOne() Updates all the documents in MongoDB collections that match the given query. db.collection.updateMany() Replaces the first matching document in MongoDB collection db.collection.replaceOne() Deletes the first document in Mongodb collection db.collection.deleteOne() db.collection.deleteMany()