MongoDB – is DBREF necessary?

by

Dbref in my opinion should be avoided when work with mongodb, at least if you work with big systems that require scalability.

As i know all drivers make additional request to load DBRef, so it’s not ‘join‘ within database, it is very expensive.

Is there a way to reference other documents without having the
somewhat redundant $ref-field?

Yes, keep references in the mind, create naming conventions for ‘foreign keys‘ (something like RefUserId or just UserId) and store just id of referenced document. Load referenced documents yourself when needed. Also keep your eyes open for any denormalization, embedding you can do, because it’s usually greatly improve performance.

More Related Contents:

  1. MEAN app vs. Mongo service local in Angular2
  2. Find objects between two dates MongoDB
  3. MongoDB: Combine data from multiple collections into one..how?
  4. How to update the _id of one MongoDB Document?
  5. Multiple join conditions using the $lookup operator
  6. Aggregate $lookup Total size of documents in matching pipeline exceeds maximum document size
  7. How to Model a “likes” voting system with MongoDB
  8. Overflow sort stage buffered data usage exceeds internal limit
  9. Slow pagination over tons of records in mongodb
  10. MongoDB – paging
  11. MongoDB query with an ‘or’ condition
  12. mongo.exe not installed in Version 6.0.0
  13. multiple instances of Mongo DB on same server
  14. How can I share MongoDB collections between Meteor apps?
  15. How to sum every fields in a sub document of MongoDB?
  16. Where does mongodb stand in the CAP theorem?
  17. MongoDB: how to parse date in 3.6 mongoDb version?
  18. MongoDB – What about Decimal type of value?
  19. MongoDB Text Search AND multiple search words
  20. How does sorting with an index work in MongoDB?
  21. How to get multiple document using array of MongoDb id?
  22. What is the maximum number of parameters passed to $in query in MongoDB?
  23. How to organise a many to many relationship in MongoDB
  24. MongoDB : aggregation framework : $match between fields
  25. How to check if an array field contains a unique value or another array in MongoDB?
  26. MongoDB.service failed with result exit-code
  27. MongoDB index/RAM relationship
  28. MongoDB Single Document size limit is 16MB
  29. mongodb aggregate query isn’t returning proper sum on using $sum
  30. MongoDB {aggregation $match} vs {find} speed

Leave a Comment