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What is index and how it is used in MongoDB? |
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Answer» An INDEX is a special structure in MongoDB. It stores a minimal portion of data belonging to a specific field in a form that is EASY to traverse. This feature is ORDERED by the value of a field, which is pre-specified in the index. The primary role of an Index is to offer GREAT performance read operations for queries that are used frequently. Related Article: MYSQL Interview Questions |
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