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in Big Data | Hadoop by
Q:

Does Mongodb Support Foreign Key Constraints?

1 Answer

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No. MongoDB does not support such relationships. The database does not apply any constraints to the system (i.e.: foreign key constraints), so there are no "cascading deletes" or "cascading updates". Basically, in a NoSQL database it is up to you to decide how to organise the data and its relations if there are any.

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