star-schema

Star-Schema Design [closed]

假如想象 提交于 2019-11-27 16:38:07
Is a Star-Schema design essential to a data warehouse? Or can you do data warehousing with another design pattern? ConcernedOfTunbridgeWells Using star schemas for a data warehouse system gets you several benefits and in most cases it is appropriate to use them for the top layer. You may also have an operational data store (ODS) - a normalised structure that holds 'current state' and facilitates operations such as data conformation. However there are reasonable situations where this is not desirable. I've had occasion to build systems with and without ODS layers, and had specific reasons for