How to create primary/foreign key relationships in mongodb?

5

Is php difficult to learn?

940

What is the purpose of a route guard?

801

What is the fiscal year in salesforce?

596

How can you read content from file in java?

1002

what are the different types of expenditures considered for the purpose of accounting?

1062

Explain android activities?

901

Why would some industries select pneumatics over hydraulic?

1089

Can a varchar be a primary key?

1009

Give one example for multiple statements in single statement?

863

Is there a possibility of inducing stress cracking in an insulated stainless road tanker vessel (20 tonne capacity) if the vessel is subject to rapid filling (10 tonne /hr) with liquid methane (-160 c) assuming the vessel is at ambient. If so, where could I obtain suggested cooling rates?

1140

Why do we need generics?

926

if voltage bt phase & nutral is 38v in a panel board . whats the root cause.

2314

Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

1154

How does diff command work?

967