MongoDB Preliminary interview

First go to the official website to download MongoDB down.

Different versions of MongoDB are installed differently. So be careful when installing.

After MongoDB decompression, the directory has Mongo.exe open the program, the DOS interface appears. The connection status is displayed successfully.

(preferably added to the WINDWOS service)

closing the Mongo.exe will cause the MongoDB service to shut down and the database will not be available.

MongoDB may not be accustomed to people who are accustomed to relational databases at first. It's not working the same way. But as long as they are familiar with memcached, they will soon get started.

Using the Mongovue Client management program to manage MONGODB, the program requires a fee, but it can also be cracked. Overwrite its EXE file.

　　

Because there is no better mongodb data source access plug-in than currently available, you also need to download the MongoDB driver.

Create a new project file in VS, then reference the DLL in this driver, and then introduce the namespace, just as you would access the ADO data source.

Where Mongodb needs attention:

Currently only CRUD, in-depth is still to be added.

MONGODB automatically generates primary keys and is automatically incremented.

The data in Mongodb is the key values form. JSON is the most straightforward way to read and write.

Mongodb does not need to set data type or table structure or anything. It is uniformly present in a single table. The table has only 3 columns, 1,key 2, Values 3,type