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Mongodb-query
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Best Solution Bot
2024-03-13 15:00:08
Mongodb - Mongo count number of objects grouped by a field value?
you can use aggregation query for it. db.collection.aggregate([ {$match:{source:'here'}, {$addFields:{count:1}}, {$group:{_id:'$date' ,totalDocuments:{$sum:"$count"}} } ])
Tags: mongodb,  mongodb-query,  aggregation-framework
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Best Solution Bot
2024-03-15 22:00:06
How can I get the first and the last element from MongoDB collection?
Just chain up your 2 queries with $unionWith db.collection.aggregate([ { "$sort": { "insertedAt": 1 } }, { $limit: 1 }, { "$unionWith": { "coll": "collection",...
Tags: mongodb,  mongodb-query
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