Difference between revisions of "MongoDB CreateCollection"

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Line 18: Line 18:
  
 
  show collections
 
  show collections
 +
 +
Which should return:
 +
 +
<pre color:"blue">
 +
db.createCollection('deptCollection', {max: 20})
 +
{ "ok" : 1 }
 +
</pre>
  
 
== Next Step ==
 
== Next Step ==
  
 
[[MongoDB_InsertData|Inserting]] data into the collection
 
[[MongoDB_InsertData|Inserting]] data into the collection

Revision as of 15:29, 20 October 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.

To check this has been created:

show collections

Which should return:

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

Next Step

Inserting data into the collection