Introduction
In this article. My main focus to provides a simple guideline.How to create a database in MongoDB.In MongoDB database is dynamically created. Means there is no predefined structure as compared SQL.<USE> is used to create a database in MongoDB.
Prerequisite
It would be better if you have the basic knowledge of RDBMS concept. Actually, you are going to learn a high-performance database so we need some basics of these. It will good to cover my below articles before this. It helps to learn more about MongoDB.In which I explained. Click here MongoDB Indexing working and Installation MongoDB on Windows for Beginners and Introduction of MongoDB.
Basic Syntax
1 Step
USE COMMAND
If Database does not exist then USE command help to a create a new database.
The following is the syntax
Write<USE_COMMAND>then Write<Database_NAME>For example, the Database name is <LOG> then the syntax is<USE LOG>
A database has created that show in below fig.
1 | USE LOGS |
But one thing more. You have basic Knowledge database. A database is a collection of a logically related data set in which program data is stored.
2 Step
db Command
After that, you will use command <db>which helps to show your database. That has currently created. I will show you a simple picture. That describes its working.
1 | db |
Step 3
Show <dbs> Command
If you want to check your all database. You will write <Show dbs>this Command helps to show you all database that had already existing or currently created. below picture, you will see.
1 | Show dbs |
One thing more if you create a database its mandatory to insert data into it. if not insert data into it then the database will not show. you will see above fig <logs> database does not show. because the reason behind is that, data is not inserted in a<logs> database.
Conclusion
I wish I could tell you that a great site of MongoDB.you just understands the key element above post-MongoDB database creation. more, detail about MongoDB database creation, please click here.how to create a database in MongoDB.You also read my previous lecture. I hope you will understand this lecture. Thank you for reading this lecture. Hope you got the idea.
