The MongoDB Compass
11 USD trade organization, trade point, sellers, suppliers, order
to suppliers.1) Create a database for the subject area taking into account the corresponding listed in the collection table.Base of Data
There are two ways to create the Mongo Shell and the MongoDB Compass.2) The objects of one collection must contain references to the objects of another collection.3) In one of the collections objects as fields must include massives, and more than one level of insert.4) Fill the collection with the relevant data.1) Add several documents to the corresponding collection using db.collectionname.insert.
2) To update several documents in the collection using db.collection.update(query, update, options).3) To make the deletion of several documents in the collection using db.collectionname.remove(query).
1) Preparing scenarios for data selection (using the method db.collectionname.find(query, projection)):
• From a separate collection according to certain criteria, bring a plan to fulfil the request.from a number of collections.• From several collections with a sum count by one of the fields.
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