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Lần này, chúng tôi sẽ xác định các hình tam giác của số. Điều này là rất tương tự như việc tìm kiếm giai thừa, ngoại trừ việc chúng tôi sử dụng Ngoài ra thay vì hơn so với phép nhân. Vì vậy, 5 hình tam giác chỉ là 15 (5 +4 +3 +2 +1). Hãy tạo ra một sproc mới để kiểm tra ra một trong những này - nó sẽ trông giống như sproc thừa chỉ với một vài thay đổi nhỏ: | Chapter 16 A Brief XML Primer So with all that said in this chapter we ll look at What XML is What other technologies are closely tied to XML I mentioned a bit ago that XML is usually not a good way to store data but there are exceptions. One way that XML is being utilized for data storage is for archival purposes. XML compresses very well and it is in a very open kind of format that will be well understood for many years to come if not forever. Compare that to say just taking a SQL Server 2008 backup. A decade from now when you need to restore some old data to review archival information you may very well not have a SQL Server installation that can handle such an old backup file but odds are very strong indeed that you ll have something around that can both decompress assuming you used a mainstream compression library such as ZIP and read your data. Very handy for such deep archives. XML Basics There are tons and tons of books out there on XML for example Wrox s Professional XML by Evjen et al . Given how full this book already is my first inclination was to shy away from adding too much information about XML itself and assume that you already knew something about XML. I have however come to realize that even all these years after XML hit the mainstream I continue to know an awful lot of database people who think that XML is just some Web technology and therefore have spent zero time on it they couldn t be more wrong. XML is first and foremost an information technology. It is not a Web-specific technology at all. Instead it just tends to be thought of that way usually by people who don t understand XML for several reasons such as XML is a markup language and looks a heck of a lot like HTML to the untrained eye. XML is often easily transformed into HTML. As such it has become a popular way to keep the information part of a page with a final transformation into HTML only on request a separate transformation can take place based on criteria such as what browser is .
