May 2020
Beginner to intermediate
319 pages
7h 3m
Chinese
Content preview from 数据库系统内幕
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简介与概述
｜
21
图
1-3
：
WebTable
的概念性结构
理解宽列式存储的概念表示是有用的，而它们的物理布局也有所不同。列族的数据布局
示意图如图 1-4 所示：列族被单独存储，但在每个列族中，属于同一键的数据被存储在
一起。
列族
列族
行键
行键
时间戳
时间戳
限定符
限定符
值
值
图
1-4
：
WebTable
的物理结构
1.4
数据文件和索引文件
数据库系统的主要目标是存储数据，并可以快速地访问它们。但是，数据是如何组织
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.