MongoDBÉè¼Æģʽ-(Ó°Ó¡°æ)

prefacepart i£®design patterns1£®to embedorreference relational data modeling and normalization what is a normal form£¬anyway? so what's the problem? denormalizing for performance mongodb£ºwh0 needs normalization£®anyway? mongodb document format embedding for locality embedding for atomicity and isolation referencing for flexibilitv referencing for potentially high--arity relationships many-to-many relationships conclusion2£®polymorphicschemas polymorphic schemas to suppoobjectoriented programming polymorphic schemas enable schema evolution storage(in-)efficiency ofbson polymorphic schemas supposemistructured domain data conclusion3£®mimickingtransactional behavior the relational approach to consistency compound documents using complex updates optimistic update with compensation conclusionpartll£®usecases4£®operationalintelligence storing log data solution 0verview schema design operations sharding concerns managing event data growth preaggregated reports solution 0verview schema design operations sharding concerns hierarchical aggregation solution overview schema design mapreduce operations sharding concerns5£®ecommetce product catalog solution overview operations sharding concerns category hierarchy solution overview schema design operations sharding concerns inventory management solution 0verview schema operations sharding concerns6£®contentmanagementsystems metadata and asset management solution overview schema design operations sharding concerns storing comments solution 0verview approach£ºone document per comment approach£ºembedding all comments approach£ºhybrid schema design sharding concerns7£®onlineadvertising networks solution overview design 1£ºbasic ad serving schema design operation£ºchoose an ad to serve operation£ºmake an ad campaign inactive sharding concerns design 2£ºadding frequency capping schema design operation£ºchoose an ad to serve sharding design 3£ºkeyword targeting schema design operation£ºchoose a group ofads to serve8£®sociai networking solution overview schema design independent collections dependent collections operations viewing a news feed or wau posts commenting on a post creating a new post maintaining the social graph sharding9£®onlinegaminq£® solution overview schema design character schema rem schema locion schema operations load character data from mongodb extract armor and weapon data for display extract character attributes£¬inventorand room information for display pickup anitemfrom aroom remove an item from a container move the character to a different room buy an item sharding afterwordindex