Mongodb basic concept learning - Documentation

MongoDB The correspondence between the concept of and the concept of relational database is as follows ;

Database corresponds to database ; Table corresponding set ; Line corresponds to document ;

mongodb Of file Roughly equivalent to rows in a relational database ;

MongoDB in , A document is a set of key values (key-value) Yes ( namely BSON);
MongoDB The document does not need to be set to the same field , And the same fields do not require the same data type , This is very different from a relational database ;

Let's insert some documents , And check ; Use find() Search for ;