Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Semi-structured data is a form of structured data that does not conform with the formal structure of tables and data models associated with relational databases but nonetheless contains tags or other markers to separate semantic elements and enforce hierarchies of records and fields within the data. Therefore, it is also known as schemaless or self-describing structure. In the semi-structured date, the entities belongs to the same class may have different attributes even though they are grouped together, and the attributes order is not important.

Под заказ:
	OZON.ru - 4336 руб.	Перейти

Рейтинг книги: 5 из 5, 6 голос(-ов).