Welcome Back to Tech Bird Mongodb Learning
Here again with a blog
How to Create a Database and Insert a document with the Mongodb
First of all open the mongodb shell..
If you are new and want to know How to Start MongoDB .👈👈
Once you have open the Mongodb shell we can directly proceed with query ..
NOTE: In mongodb Collection is term which is used instead of Table { so dont get confused guys!}
- First of all the We need to create a database
Syntax:
USE databasename
Example:
USE ddbase
Check Fig: 1.0
NOTE: Here USE is the keyword to create a data base followed by the database name you wish to keep.
Fig: 1.0
Once the database created we need create a table(called as Collections in Mongodb)
NOTE: In mongodb Test the default database which is provide so dont get confused.
- To create Collection (alias Table)
Syntax:
db.createCollections('CollectionName(Alias) TableName');
Example:
db.createCollection('CricketPlayer');
Check Fig : 1.1
Fig : 1.1
- Here with i have created a collection name called CricketPlayer. Inside the collection we need to put some attribute, so let see how to go with.
- To check all the collections in the database
Use this command
Syntax:
show collections
Example:
show collections
Check Fig : 1.2
Fig : 1.2
- To Enter the data's (attribute values ) into the collections
In this example im going to add 3 player details into the collections
Syntax:
db.collectionName.insert({AttributeName:"Values", AttributeName:"Values"});
Example:
>db.CricketPlayers.insert({f_name:"sachin", l_name:"tendulkar", j_no:"10"});
>db.CricketPlayers.insert({f_name:"ms", l_name:"dhoni", j_no:"07"});
>db.CricketPlayers.insert({f_name:"virat", l_name:"kohli", j_no:"18"});
Check Fig: 1.3
Fig: 1.3
- To check Whether we have inserted the data into the collection or not
Syntax:
db.collectionName.find();
Example:
db.CricketPlayers.find();
Check Fig: 1.4
Fig: 1.4
- To get the find() result in a Pretty way.
Syntax:
db.collectionName.find().pretty();
Example:
db.CricketPlayers.find().pretty();
Check Fig: 1.5
Fig: 1.5
- To Close the MongoDb Shell
Syntax:
Ctrl+c
Check Fig:1.6
Fig:1.6
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