第4章 数据库管理 逻辑存储结构和物理存储结构

一、数据库的逻辑存储结构指的是数据库是由哪些性质的信息所组成，SQL Server的数据库不仅仅只是数据的存储，所有与数据处理操作相关的信息都存储在数据库中。

二、数据库的物理存储结构则是讨论数据库文件是如何在磁盘上存储的，数据库在磁盘上是以文件为单位存储的，由数据库文件和事务日志文件组成，一个数据库至少应该包含一个数据库文件和一个事务日志文件。-Chapter 4 logical storage structure of database management and physical storage structure of a logical storage structure of the database refers to what the nature of the database is composed of information, SQL Server database is more than just data storage, handling all data related to information is stored in the database. Second, the physical storage structure of the database is to discuss how the database file is stored on disk, the database file on disk is stored as a unit from the database files and transaction log files, a database should contain at least one database file and a transaction log file.