Mongo DB Study: first face with mongo DB
1. study methods:
1. Translate: I am the mongo DB organization website truck man. And I may use my knowledge to help myself learn more.
2. Practice: only the practice can make me what I have done and what I can do.
2. Ooh, Mongo Db is an open source (c++) no SQL database. This is what I very like it firstly. Next, with the use of it may make me more like it. Expecting!
3. Today is the first use with it.
First we should get it:
www.mongodb.org you can get what you want.
I get the 32-bit r-2.4.4(the newer one, and with the information the even number release is more stable) after download the file, extract into the mongo DB directory like this.
Secondly, I add the mongo into the environment variables; make sure we can use it more quickly with the CMD of the win + R.
Like this:
Thirdly, let’s try it.
With the CMD, first we should point the database path like this:
If you see like this:
Congratulations, you get it. and you can with the IE confirm it.
http://localhost:217017 (mongo use the default port 217017), and you can with the 218017 with more details.
Surely, we can use mongo db now.
With a new CMD. And use command “mongo” start to use the database of mongo.
Insert:
We doesn’t must create a “table”, but we can use the insert method create a collection like this.
Find:
We may want to see what we have inserted. We can use find like the “select” with SQL to find it out.
Update:
We may want to update one item of the collection. Like this:
Remove:
You can remove the item. Like this:
