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I'm doing a project using MongoDb.my problem is when i create collection, i have to insert data also. but i want to create the collection without data(same as making table in mysql without data.)

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http://docs.mongodb.org/manual/reference/method/db.createCollection/

A quick google would have revealed this.

db.createCollection("something")

Edit

The PHP method: http://php.net/manual/en/mongodb.createcollection.php

$db->createCollection("something");

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4 Comments

This is an incomplete answer. The OP is asking about how to define the structure of the document before you add data.
@ScubaSteve this isn't an incomplete answer. You can't define the structure of a document because it's a schemaless database. At least that was the case when I answered this in 2013 anyway.
I won't be changing the answer, there is enough information for this answer to be correct and complete. OP asked how to create a collection without data, this IS the answer. What you suggested they asked "define the structure of the document before you add data" isn't possible and isn't what they asked.
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