I'm lokking forward a library like google docs(speret sheet) I examine these structure on WEB, but there is not detailed explanation and is hard to understand it, and it is it to implementation in the long way off when I really become the part called the cooperation with DB. There are many introductions about a sort in particular and paging, the structure of the part such as D&D of the column, but explanation and the commentary of the implementation method think that there are a lot of weak things when it is it for addition / editing / deletion / the search of data.
Thus I think that I can have information about the structure of the open source that the explanation of the DB cooperation point is substantial in various ways.
Thanking you in advance.