What is difference between foreign key and unique key?

1027

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State the difference between union and union all?

945

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What do you understand by recursive stored procedures?

1007

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What are the different types of nosql databases? Give some examples.

1

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What do you mean by a replica set in mongodb?

1

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Write the syntax for creating a collection and dropping a collection in mongodb.

1

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List some alternatives to mongodb?

1

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List the important features of mongodb.

1

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What is the use of a namespace in mongodb?

1

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What do you understand by a profiler with reference to mongodb?

1

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What should all points be taken into consideration while creating a schema in mongodb?

1

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What is the “__v” field in mongoose?

1

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What do you know about mongodb?

1

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Explain sharding in mongodb?

1

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What are the differences between mongodb and mysql?

1

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