Difference between revisions of "MongoDB CreateCollection"

From mi-linux
Jump to navigationJump to search
Line 14: Line 14:
 
In this case we are going to limit our collection to hold a maximum of 20 documents.
 
In this case we are going to limit our collection to hold a maximum of 20 documents.
  
To check this has been created:
 
 
show collections
 
  
 
Which should return:
 
Which should return:
Line 24: Line 21:
 
  { "ok" : 1 }
 
  { "ok" : 1 }
 
</pre>
 
</pre>
 +
 +
 +
To check this has been created:
 +
 +
show collections
  
 
== Next Step ==
 
== Next Step ==
  
 
[[MongoDB_InsertData|Inserting]] data into the collection
 
[[MongoDB_InsertData|Inserting]] data into the collection

Revision as of 12:31, 9 November 2016

Main Page >> MongoDB >>MongoDB Workbook >> Create Collections

Create a Collection

If a collection does not exist, MongoDB will automatically create the collection when you first store data for that collection.

When you first use MongoDB you will find you have no collections:

show collections

You can, however, create one and set some options:

db.createCollection('deptCollection', {max: 20})

In this case we are going to limit our collection to hold a maximum of 20 documents.


Which should return:

 db.createCollection('deptCollection', {max: 20})
 { "ok" : 1 }


To check this has been created:

show collections

Next Step

Inserting data into the collection