A mongoDB instance may have 0 or more databases A database may have 0 or more

A mongodb instance may have 0 or more databases a

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A mongoDB instance may have 0 or more databases. A database may have 0 or more collections which has table or views A collection may have 0 or more documents which has rows. A document may have 1 or more fields which has column . mongoDB indexes function much like their RDBMS counterparts. Explain how MongoDB address the issue of Schema in database creation MongoDB has free dynamic schema and do not need any pre-defined data schema. This allows that documents in the same collection have different set of fields and similar fields may store different
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types of data. In the design schema process is set on user requirements and combines object into one document if being used together or separate them. Explain the following concept in MongoDB - Collection, Document Collection is a group of mongoDB documents and is similar to RDBMS table. It exists within a single database and collection does not enforce schema. Documents within a collection can have different fields and the documents have relatable purpose to the collection. A collection may have 0 or more documents which has rows. Document is a set of key-value pairs and have dynamic schema. A document may have 1 or more fields which has column. Documents are coded C++ in BSON format.
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