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所在平台: Udemy |
课程主页: https://www.udemy.com/course/sql-and-postgresql-for-beginners/
课程评论：没有评论
课程名称： SQL和PostgreSQL初学者：成为SQL专家 课程概述： 本课程是掌握SQL和PostgreSQL的最佳和最快途径，旨在帮助学员成为SQL专家。课程从学习关系数据库概念（如主键约束和数据库关系）开始，逐步深入到使用SQL命令从零开始创建关系数据库的过程。接下来，学员将学习如何从数据库中提取结果集，从简单的SQL查询开始，逐步过渡到更复杂的SQL查询，如子查询和窗口函数。 本课程采用循序渐进的学习方式，首先介绍简单的概念和查询，然后通过引入更复杂的SQL概念和查询来加深理解。每个模块都有多个挑战，帮助学员检验所学的SQL知识。 SQL是许多行业中需求量最大的技术技能之一，学习SQL是提升职业发展的最佳途径。完成课程后，学员将能够自信地在个人简历中列出SQL和PostgreSQL技能。在大数据、数据分析、机器学习和人工智能的时代，具备SQL和数据分析技能的员工需求与日俱增，未来只会进一步增长。 PostgreSQL作为全球最先进的开源关系数据库，以其可靠性、数据完整性和稳健性而享有良好声誉，因此成为世界上最流行和广泛使用的数据库系统之一。许多知名公司，如苹果、思科、Spotify、富士通、Skype、Netflix和IMDb，都使用PostgreSQL。根据2024年StackOverflow的开发者调查，三分之一的开发者每天都在使用PostgreSQL，2024年PostgreSQL连续第五年成为增长最快的数据库。 尽管本课程使用PostgreSQL，但学习到的数据库、SQL和数据分析技能适用于其他关系数据库系统，如MySQL、SQL Server和Oracle。 学员反馈：许多学员对课程给予高度评价，认为课程结构合理、节奏适中、讲解清晰，从而帮助他们在SQL和PostgreSQL方面建立了扎实的基础。 课程结束后，学员将能够： - 使用SQL从零开始创建关系数据库 - 创建、修改和删除数据库中的表 - 向表中插入、更新和删除数据 - 使用SQL选择查询从数据库中检索数据 - 使用SQL的WHERE子句和逻辑运算符过滤数据 - 排序和限制从数据库表中检索的数据 - 使用聚合函数和分组数据来获得更有意义的数据库洞察 - 利用数据库关系将表关联在一起 - 使用SQL连接查询在单个查询中从多个表中检索数据 - 掌握复杂的SQL子查询 - 将SQL字符串函数应用于PostgreSQL中的数据 - 理解并使用SQL中的条件语句和函数（如CASE表达式） - 在SQL中使用窗口函数以进行更深入的数据分析 课程还提供了如何安装和设置PostgreSQL及PgAdmin的逐步视频，并且设置过程完全免费。每个视频中的SQL代码都作为资源提供，便于学员访问。同时，课程中还包含SQL练习和视频解答，以帮助学员提高知识和SQL技能。课程的问答区也将积极解答学员的问题，未来将持续更新更多模块。快来观看免费的预览视频，开始学习SQL这一重要且需求量大的技术技能吧！
Become an expert in SQL and PostgreSQL with this bestselling course!This course is the best and fastest way to master SQL. In this course we go from learning relational database concepts such as key constraints and database relationships to creating a relational database from scratch using SQL commands. We then learn how to extract result sets from a database; starting with simple SQL queries to filter data and building up to more complex SQL queries such as subqueries and window functions.This SQL course takes a step-by-step approach to learning SQL. We start with simple concepts and queries to start with and then build on this knowledge by introducing more complex SQL concepts and queries. Each section of the course also includes multiple challenges where you will be able to put your new-found SQL knowledge to the test.SQL is one of the most in-demand tech skills across many industries so learning SQL is one of the best ways to boost your career! After taking this course you will be comfortable putting SQL and PostgreSQL on your resume/CV. In the age of Big Data, Data Analysis, Machine Learning and AI, demand for employees with SQL and data analysis skills has never been higher and will only increase in the future. SQL is one of the most important and in-demand skills for data scientists, data and business analysts and anyone who works with large datasets. Upgrade your skills and stand out from the crowd and learn SQL today. PostgreSQL is the World's most advanced open source relational database. It has a strong reputation for its reliability, data integrity and robustness. Because of this, PostgreSQL is one of the most popular and widely used database systems in the world. Companies who use PostgreSQL include Apple, Cisco, Spotify, Fujitsu, Skype, Netflix and IMDb. A 2024 survey of stackoverflow developers reported that one third of developers used PostgreSQL on a daily basis in their professional lives, up from 25% in 2023. In 2024 PostgreSQL was the fastest growing database for the fifth year in a row. PostgreSQL experience really is a desired skill in the tech industry. Although this course uses PostgreSQL, the database, SQL and data analysis skills you learn will be applicable to other relational database systems such as MySQL, SQL Server and Oracle. Here's what students are saying about this SQL and PostgreSQL course: Christopher says - "A really great course. The structure was well setup and the pacing was perfect. Each section and lecture flowed well in to the next. The exercises and solutions were very helpful. I was new to sql and postgresql before taking this course but I can now say that I am comfortable with both." Erin Todd says - "I love this course so far very easy to follow and interactive."Raymond Beauchamp says - "Amount of information is good for a beginner course. Was beneficial in increasing my understanding of the subject. Instructor was knowledgeable, and was easy to follow." John Hellmann says - "Very concise lectures! Was a great course overall"Abhinav Sharma says - "The explanations are really clear and the course structure is very well thought out."By the end of this course you will know how to:Create a relational database from scratch using SQLCreate, alter and delete tables from a databaseInsert, update and delete data from a table Retrieve data from a database using SQL select queriesFilter data using SQL where clauses and logical operators Order and limit data retrieved from a database tableUse aggregate functions and group data to gain more meaningful insights from a databaseRelate tables together using database relationshipsUse SQL join queries to retrieve data from multiple tables in a single queryMaster complex SQL subqueriesApply SQL string functions to data in PostgreSQLUnderstand and use Conditional Statements and Functions, such as Case Expressions, in SQL and PostgreSQLUse Window Functions in SQL for deeper data analysis and exploration A step-by-step video of how to install and setup PostgreSQL and PgAdmin is included and the setup is completely FREE.The SQL code for each video is included as a resource so you can easily access it. There are SQL exercises, and video solutions, along the way to help you improve your knowledge and SQL skills. I will be actively answering any questions you may have about the course in the Q & A section. The course will be continually updated with more sections in the future. Watch the free preview videos and start learning SQL - one of the most important and in-demand technology skills!
