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MongoDB - how to only update field if field does not exist
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How to apply a condition only if field exists in MongoDB?
Web24 nov. 2024 · When working with large-scale databases in MongoDB, it’s important to check if a collection already exists in the database before creating a new collection. In … Web28 aug. 2024 · Looking to do the following query: Entrant .find enterDate : oneMonthAgo confirmed : true .where('pincode.length > 0') .exec (err,entrants)-> Web5 apr. 2024 · 1. Using replaceOne () method to insert if not exists in MongoDB. You can use the MongoDB replaceOne () method along with the upsert:true option to insert a … mythical states iowa