Question

I am creating an installation for a system using .NET and MongoDB. I wrote a batch to ensure indexes on DB but it would not work unless you have collection created. Is it a bad practice to do smth like:

db.Customers.save({username:"mkyong"})
db.Customers.remove({}) 
db.Customers.ensureIndex({SystemId:1,CampaignId:1,LocalIdentifier:1})

Answer 1

Use the createCollection command:

db.createCollection("Customers")   
db.Customers.ensureIndex({SystemId:1,CampaignId:1,LocalIdentifier:1})