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所在平台: Udemy |
课程主页: https://www.udemy.com/course/sql-reporting-and-analysis-for-beginners/
课程评论:没有评论
Coursera 上的《SQL:初学者报告与分析》课程概览 这门入门课程旨在帮助初学者掌握SQL在数据报告和日常数据分析中的应用。通过学习如何选择、过滤和排序数据,自定义输出,以及从数据库报告聚合数据,学员将能够熟练运用SQL。 课程重点关注ANSI SQL标准,这使得所学技能适用于Oracle、MySQL、Microsoft SQL Server等所有数据库。SQL已成为大多数数据科学职位(如数据分析师、商业智能开发人员、程序员、数据库程序员)的必备技能,它能帮助你与数据库沟通并处理数据。 课程内容包括: * 编写SQL SELECT语句 * 使用DISTINCT消除重复行 * 限制和排序数据 * 使用WHERE子句和通配符(如IN, LIKE) * 运用各种SQL运算符进行数据分析 * 使用ORDER BY子句排序数据 * 使用字符函数和Concat函数 * 使用LIMIT操作符 * 使用GROUP BY和HAVING子句报告聚合数据(如AVG, COUNT, MIN, MAX) * 显示来自多个表的数据(包括内连接、右外连接、左外连接、自连接) * 使用子查询和嵌套子查询进行数据分析
This introductory beginners course will help you master SQL for Data Reporting & daily data analysis by learning how to select, filter & sort data, customize output, & how you can report aggregated data from a database!The course, we will focus on ANSI(American National Standards Institute) SQL that works on every database like Oracle, MySQL, Microsoft SQL Server, etc.SQL has become a requirement for most data science jobs that include: data analyst, BI (Business Intelligence) developer, programmer, database programmer. SQL will let you communicate with the database and work with your data. What You will learn include:Writing SQL SELECT StatementsEliminating duplicate rows using DISTINCTRestricting and Sorting DataWHERE clause, wildcard like IN, LIKEAnalysing data using various SQL OperatorsSorting data using ORDER BY clauseCharacter FunctionsConcat FunctionsUsing LIMIT OperatorReporting Aggregated Data Using the Group FunctionsAVG, COUNT, MIN, MAX...Using GROUP BY and HAVING ClausesDisplaying Data From Multiple Tables inner-join, right outer-join, left outer-join, self-joinAnalysing data Using Subqueries Analysing data Using nested Subqueries