Pages:
The fundamental unit of data storage in SQL Server is the page.
SQL Server writes all data rows on pages, and all data pages are the same size: 8 KB.
Extents are a collection of eight physically contiguous pages and are used to efficiently manage the pages. All pages are organized into extents.
Extents:
Extents are the basic unit in which space is managed.
页:
“页”是 SQL Server 中的根本数据存储单元 。SQL Server 将在页上写入全部数据行,全部数据页的巨细均为 8 KB。
区是八个物理上一连的页的聚集,用来有效地管理页。 全部页面都构造为盘区。
区:
区是管理空间的根本单元