mongodb capped collection

1. Brief introductionCapped collections is a well-performing, fixed-size collection that performs used (aging-out) processing with LRU (Least recently age-out Least recently used) rules and insertion order, automatically maintaining the order in

Capped Collection is a well-performing set of fixed-size collections that perform used (aging-out) processing in LRU (least recently age-out, least recently used) rules and insertion order, automatically maintaining the order in which objects in the

[MongoDB] The Capped Collection set of Mongodb databases, mongodbcapped Capped Collection is a set of excellent performance with a fixed size. It executes age-out (aging removal) processing in the LRU (least Recently Used, least Recently Used) rule

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Capped collections is a high performance automatic maintenance object Insertion Order. It is ideal for logging-like functionality Create a Capped Collection Unlike standard collection, you have to explicitly create a capped collection,Specifies

Fixed collection: Capped collection is a fixed-size collection of excellent performance, eliminating records with LRU algorithms, self-maintaining the insertion order of objects in the collection, creating pre-sized, space-used, heart objects to

Unlike normal collections, fixed collections must be created before they are used, and fixed collections can be created using the Create command. In the shell, you can use the Db.createcollection function:Create a fixed collection of size 1024 bytes

Original: MongoDB Data summaryThe previous Redis Data summary topic is very popular, here the MongoDB series of information is also a simple collation. Hope to be useful to everyone. Last update time: 2013-04-22What is 1.MongoDB? MongoDB

What is 1.MongoDB? MongoDB Introduction ppt Sharing MongoDB Gridfs Introduction ppt Two First knowledge of MongoDB Gridfs MongoDB Gridfs Introduction A NoSQL and MongoDB introduction ppt MongoDB: Next Generation MySQL?

DatabaseMultiple databases can be built in a mongodb.The default database for MongoDB is "DB", and the database is stored in the data directory.In MongoDB you can create a database, and if you want to use MongoDB, creating a database is not