Data Quake
Data Quake. That's what it is. Dave Wells have just gave this great definition that clearly describes what's happening in the data management world during the recent years. I am greatly enjoying Dave’s session today at Enterprise Data World summit and couldn't resist writing down the summary. Everything that we did in the last decade becomes wrong now. We have used to believe that application logic can run faster and do better if it sits inside the database layer. Now this architecture is being considered a wrong choice. Same goes for data normalization or strong schema. Some people even say that data warehouses are dead. We need to rethink everything. Data schema used to be defined during the design phase. Now we define schema-on-read, after the data have been persisted. Good news - I have always believed that and Dave have just mentioned - there is no schema-less data. Despite the fact that we do not get to design the schema anymore, for Big Data we need to un...
