About MongoDB (ii) MongoDB Introduction

MongoDB Introduction

    

MongoDB is a product between a relational database and a non-relational database, the most versatile of the non-relational databases, most like relational databases. The data structures he supports are very loosely structured, like the json bjson format, so you can store more complex data types. the biggest feature of MongoDB is that the query language he supports is very powerful, its syntax is a bit like object-oriented query language, almost can realize the most functions like relational database single table query, but also support the indexing of data. It is characterized by high performance, easy to deploy, easy to use, and easy to store data.

MongoDB functional Characteristics

1 , collection-oriented storage, and easy storage of object type data.

Data is grouped in a dataset, called a collection, and each collection has a unique identifying name in the database and can contain an unlimited number of documents. The concept of a collection in the Philippine relational database is similar to a table in a relational database, unlike the one in which he does not need to define any schema.

2 , Mode Freedom

for files stored in a MongoDB Database, we do not need to know any of its structure definitions. If necessary, you can store files of different structures in the same database.

3 , support dynamic query

4 , supports full indexes, and contains internal objects.

5 , support replication, and fail-back.

6 , using efficient binary data storage, including large objects (such as video, etc.)

7 , and automatically handles fragmentation to support the scalability of the cloud computing hierarchy.

8 . Support RUBY,PYTHON,JAVA, C + + , PHP and many other languages.

9 . File storage format is BSON(a json extension)

BSON ( Binary serialized Document Format storage form refers to the document stored in the collection, stored as a key - the line of the value pair. The key is used to identify a document as a string type, whereas a value can be a variety of complex file types.

Ten and can be accessed over the network.

MongoDB the server can run on Linux , Windows or OSX platform, Support + bits and - bit app, default port 27017. recommended to run on the platform, because mongodb the maximum files supported by the bit mode runtime are 2GB .

MongoDB Data Architecture as shown

Here for beginners can understand, and relational database comparison, here the concept of the set can be regarded as a table, the concept of the document can be seen as a table of records, a Collection can have more than one document, and can be nested in document .

the next article emphasizes that MongoDB the download and installation

About MongoDB (ii) MongoDB Introduction