sparkSQL应用解析_SparkSQL详解

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SparkSQL 应用解析

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第  章  概述
什么是 




三者的共性
三者的区别
第  章 执行  查询
命令行查询流程
 创建  程序
第  章  解析
新的起始点  
创建 
 常用操作!
 风格语法!
 风格语法"
创建 
 和  互操作
通过反射获取 #$
通过编程设置 #$
!类型之间的转换总结
"用户自定义函数
"用户自定义 % 函数
"用户自定义聚合函数
第  章  数据源
通用加载&保存方法"
手动指定选项"
文件保存选项
'() 文件
'() 读写
解析分区信息
#$ 合并
* 数据库
内嵌 * 应用
外部 * 应用
+,- 数据集!


+./"
第  章  服务器
第  章  运行 
第  章 的运行原理（了解）
" 运行架构
"0-1
")23)24#)
" 运行原理
"使用  /25 保存元数据
"解析 6使用 -0 生成未绑定的逻辑计划
"使用分析器  278 绑定逻辑计划
"使用优化器 ,8 优化逻辑计划
"使用 '2   生成物理计划
"!使用 )74#)  执行物理计划
第  章 数据仓库的建设（了解）
什么是数据仓库
数据仓库的特点
数据仓库发展历程
数据库与数据仓库的区别
数据仓库架构分层!
!数据质量检查
"元数据介绍
什么是数据模型
为什么需要数据仓库模型
如何建设数据仓库模型
数据仓库数据模型架构
数据仓库建模阶段划分
数据仓库建模方法
维度建模
概述
使用选择!
缓慢变化维!
第  章   实战
数据说明!
加载数据!
计算所有订单中每年的销售单数、销售总额!!
计算所有订单每年最大金额订单的销售额!"
计算所有订单中每年最畅销货品!