在数据库系统中，最小的存取单位是（ ）。
- A.记录
- B.字段
- C.字节
- D.文件
正确答案及解析
正确答案
解析
本题考查数据库存取的基础知识。
在关系型数据库系统中，系统能够直接访问字段，多个字段构成记录，多个记录构成表，故字段是最小的访问单位。
数据是存储的基本对象，描述事物的记录称之为数据，故记录是存储的最小单位。
综合分析，存取的最小单位是记录，故本题选A。
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