My weekend is always do some part-time in our local library, the library work today when found the book in front of the many staff are disassembled, I asked what they were doing, they said this year added a lot of books in the library types, the storage system storage capacity originally is not enough. Now the new leadership decided to install a new Warehouse optimization planning now has many large shopping malls and supermarkets are in very large amount of data storage for Warehouse optimization planning of this system, and after the very convenient to query.