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所在平台: Udemy |
课程主页: https://www.udemy.com/course/effective-sql-the-fundamentals/
课程评论：没有评论
**Oracle SQL for Beginners - 基础入门** **课程简介:** 本课程是为 SQL 初学者设计的入门教程，旨在帮助您掌握撰写 SQL 语句所需的基本概念，以及理解数据库管理系统（RDBMS）的核心知识。SQL（Structured Query Language）是管理关系数据库中数据和数据结构的主要语言，也是您与数据库交互的通用语言。 **您将学到:** * **数据库基础概念:** 了解数据库的基本原理。 * **数据检索与筛选:** 如何从数据库中提取和过滤所需数据。 * **表的操作:** 创建、修改数据库表。 * **数据操作:** 插入、更新、删除数据。 * **数据排序:** 如何对数据进行排序。 * **表连接 (Join):** 理解并运用不同类型的表连接以合并数据。 * **SQL 函数:** 使用内置函数进行数据处理和计算。 * **分组结果集:** 如何对数据进行分组和汇总。 * **数据库对象:** 了解用户、角色和权限等概念。 * **复杂查询:** 编写更高级的 SQL 查询。 * **事务数据库概念:** 理解事务型数据库的基本原理。 * **SQL 类型分类:** 了解 SQL 语句的不同分类。 * **进阶学习方向:** 指导您如何继续提升 SQL 技能。 **为什么学习 SQL?** * **高薪职业:** SQL 开发人员是高收入群体。 * **市场需求:** SQL 是雇主最看重的技能之一。 * **数据洞察:** 能够从数据库中回答您提出的任何问题（例如：去年销售额是多少？员工的平均收入是多少？本月入库商品数量是多少？）。 * **摆脱 Excel 限制:** 告别因数据量过大而崩溃的 Excel，掌握处理海量数据的能力。 **课程内容与特色:** * **适合初学者:** 专为没有 SQL 基础的学习者设计。 * **内容充实:** 包含 84 个讲座，总时长 5.5 小时，全面覆盖 SQL 基础知识。 * **实践导向:** 每个讲座都附带示例文件，让您立即将所学知识付诸实践。 * **无需安装:** 无需进行任何软件或数据库安装。通过注册 Oracle LiveSQL 免费账户，即可立即开始学习，课程中提供了详细的步骤指导。 * **明确进阶路径:** "Next Steps" 讲座将为您提供进一步提升和拓展 SQL 技能的方向。
Learn the basic concepts that you will need to write SQL statements. What is SQL? SQL (Structured Query Language) is the primary language responsible for managing data and data structures contained within a relational database management system (RDBMS). Put simply, SQL is the language you use to interact with a database. Build a strong foundation in SQL with this tutorial for beginners. Database basic concepts Retrieving, filter data Creating tables, modify tables Manipulate data, sort data Join tables SQL functions Grouping result set. Database objects Understanding users/ roles/privileges Complex queries Understanding the concept of transactional database SQL types classification Next steps Why should you learn SQL? Because you can earn really good money: SQL Developers have good incomes.Because SQL is one of the most sought-after skills by hiring employers: Employers are seeking individuals who know SQL Because you can get an answer to any question you ask about your data stores in a database:Think of all the questions you ask about your data on a regular basis. What were our sales last year? What is the average income for our employees? How many goods entered the company this month? Those are all questions that can be answered using SQL.Because you no longer have to deal with Excel crashing: Ever crashed Excel because you had a ton of rows in a spreadsheet? Relational databases are designed to store millions and millions of rows of data. And you will need SQL for communicating with the database.Content and Overview Suitable for beginners, through this course of 84 lectures and 5.5 hours of content, you'll learn all of the SQL fundamentals and establish a strong understanding of the concepts behind databases. Each lessons have attached files with examples, you can put your new skills into practical use immediately. No need for a software installation for starting with the examples. No need for a database installation. You just create an free account on Livesql and you are ready to start, all the steps are described in the course The Next Steps lesson with show you what are the next steps if you want to take the experience accumulated in this course to the next level.
