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所在平台: Udemy |
课程主页: https://www.udemy.com/course/sql-bootcamp-learn-fast-query-like-a-pro-2025/
课程评论：没有评论
## SQL Bootcamp: Learn Fast, Query Like a PRO 2025 课程内容概要 本课程旨在帮助您快速掌握SQL的核心技能，成为数据查询专家。您将从关系型数据库基础知识入手，学习如何设置PostgreSQL以高效存储和管理数据。 课程将教授您使用SQL进行数据管理和分析，包括如何通过`INSERT`、`UPDATE`和`DELETE`命令创建和修改表中的数据。您还将深入了解表结构管理，掌握主键（PK）和外键（FK）的定义与关系，选择合适的数据类型，并确保数据完整性。 在数据检索方面，课程将带您精通`SELECT`语句，学习使用`WHERE`子句过滤结果，并通过`ORDER BY`对数据进行排序。您还将探索更高级的SQL函数，用于字符串和日期操作，并运用逻辑运算符和`CASE`语句进行更动态的查询。 此外，课程会详细讲解如何使用`INNER JOIN`、`LEFT JOIN`、`RIGHT JOIN`和`FULL JOIN`组合不同表中的数据，实现多数据源的无缝对接。您将学习数据聚合技术，如`SUM`、`AVG`和`COUNT`，并掌握`GROUP BY`和`HAVING`的运用，以进行高级数据分析。 最后，课程将引导您掌握如何利用子查询、公用表表达式（CTEs）和自连接来解决复杂的数据挑战，有效生成复杂报告。 本课程特别适合初学者或希望提升SQL和PostgreSQL实用技能，以在数据驱动型岗位上脱颖而出的人士。
Looking to quickly learn SQL ? This course covers the core skills needed for practical data management. Start by understanding the basics of relational databases and setting up PostgreSQL to effectively store and manage data. Learn how to manage and analyze data with SQL queries, create and modify data of the tables using INSERT, UPDATE, and DELETE commands. Dive into table structure management, define Primary Key (PK) and Foreign Key (FK) relationships for better organization, select the right data types, and ensure data integrity.Master data retrieval techniques with the SELECT statement, filter results using the WHERE clause, and organize data with ORDER BY. Explore advanced SQL functions for manipulating strings and dates, and apply logical operators and the CASE statement for more dynamic querying. Combine data from different tables using INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN to work with multiple data sources seamlessly.Learn data aggregation techniques with functions like SUM, AVG, and COUNT, and group and filter data with GROUP BY and HAVING for advanced analysis. Gain expertise in solving complex data challenges using sub-queries, Common Table Expressions (CTEs), and self joins to generate complex reports effectively.Ideal for beginners or anyone looking to strengthen their practical SQL and PostgreSQL skills to excel in data-driven roles.
