Querying in MongoDB

One of MongoDB’s best capabilities is its support for dynamic (ad hoc) queries. Systems that support dynamic queries don’t require any special indexing to find data; users can find data using any criteria. For relational databases, dynamic queries are the norm. If you’re moving to MongoDB from a relational databases, you’ll find that many SQL queries translate easily to MongoDB’s document-based query language.

Related driver docs: Python, Java, Ruby, PHP, Perl


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