MongoDB provides high performance data persistence. In particular, Support for embedded data models reduces I/O activity on database system. Indexes support faster queries and can include keys from embedded documents and arrays. Query API The MongoDB Query API supports read and write operations (CR...
BSON strings are UTF-8. In general, drivers for each programming language convert from the language’s string format to UTF-8 when serializing and deserializing BSON. This makes it possible to store most international characters in BSON strings with ease. In addition, MongoDB$regexqueries support...
A record in MongoDB is a document, which is a data structure composed of field and value pairs. MongoDB documents are similar to JSON objects. The values of fields may include other documents, arrays, and arrays of documents. The advantages of using documents are: ...
which is a helper in themongoshell for thecreatecommand. When creating a capped collection you must specify the maximum size of the collection in bytes, which MongoDB will pre-allocate for the collection. The size of the capped collection includes a small amount of space for internal overhead....
A record in MongoDB is a document, which is a data structure composed of field and value pairs. MongoDB documents are similar to JSON objects. The values of fields may include other documents, arrays, and arrays of documents. {"_id":ObjectId("54c955492b7c8eb21818bd09"),"address":{"...
MongoDB documents are similar to JSON objects. The values of fields may include other documents, arrays, and arrays of documents. {"_id":ObjectId("54c955492b7c8eb21818bd09"),"address":{"street":"2 Avenue","zipcode":"10075","building":"1480","coord":[-73.9557413,40.7720266]},"borough...
MongoDB -- from "humongous" -- is an open source, non-relational, document-oriented database. The goal of the MongoDB project is to bridge the gap between key-value stores (which are fast and highly scalable) and traditional RDBMS systems (which provide rich queries and deep functionality)...
11. Conclusion In this tutorial, we’ve seen how we can use ReactiveMongo to run queries on MongoDB. We’ve covered the most common and widely used parts of ReactiveMongo. As always, the sample code is availableover on GitHub.
Similar to other modules of Spring Data, Spring Data MongoDB also allows us to declare simple queries using the derived query method approach. By following a naming convention, we can declare methods in our repository interface, and Spring Data will automatically generate the appropriate MongoDB qu...
A short introduction to MongoDB, the most popular NoSQL database. Part of MongoDB 101, Academy 3T's MongoDB tutorial for beginners.