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MongoDB / MongoDB Interview questions

Difference between SQL and No-SQL terminologies.

SQL Terms/Concepts.MongoDB Terms/Concepts.
row. document or BSON document.
column. field.
index. index.
table joins. $lookup, embedded documents.
primary key. primary key.
Specify any unique column or column combination as primary key.In MongoDB, the primary key is automatically set to the _id field.
aggregation (for example, group by).aggregation pipeline.

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