Miguel Cartagena questions

Miguel Cartagena answers

• Delete all _id field from subdocuments
• Creating a mongodb query in Java with $or and $in
• Mongodb dynamic schemas with spring data mongodb
• remove elements from sub-array mongo document
• Can Spring Data Mongo update only dirty field in a document?
• Use mongodb aggregation framework to group by length of array
• MongoDB : Sorting Data when using DBcollection find
• How to use spring data mongo @CompoundIndex with sub collections?
• MongoDB Aggregation: How do I recombine a date using $project?
• query based on matching elements in DBRef list for mongodb using spring-data-mongodb