课程
SQL Server 入门
基础技能水平
更新时间 2025年3月
SQLProgramming4小时13 视频46 道练习3,850 XP170K+成就证明
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企业版试用课程描述
本课程涵盖:
✓ 使用 SELECT 语句检索数据的方法
✓ 使用 SQL Server 聚合函数的方法
✓ 操作文本字段的方法
✓ 从多个来源检索数据的方法
✓ 在 SQL Server 中处理数据的各个关键方面
每当引入新概念或函数时,您都将有机会检验所学并建立信心。您将使用数字媒体数据库来分析不同艺人和曲目的销量、Eurovision 数据集,以及美国停电趋势等案例,探索多种数据类型与场景。
先决条件
本课程无先修要求1
SELECTion Box
Hit the ground running by learning the basics of SELECT statements to retrieve data from one or more columns.
You'll also learn how to apply filters to both numeric and text data, and sort the results.
2
Groups, strings, and counting things
Herein, you'll learn how to use important SQL Server aggregate functions such as SUM, COUNT, MIN, MAX, and AVG. Following that, you'll learn how to manipulate text fields. To round out the chapter, you'll power up your queries using GROUP BY and HAVING, which will enable you to perform more meaningful aggregations.
3
Joining tables
This chapter covers the basics of joining tables, using INNER, LEFT, and RIGHT joins, so that you can confidently retrieve data from multiple sources.
4
You've got the power
In this final chapter, you'll get really hands on! You've worked with existing tables, but in this chapter, you'll get to CREATE and INSERT data into them. You'll also UPDATE existing records and practice DELETE statements in a safe environment. This chapter ensures the course gives you a thorough introduction to the key aspects of working with data in SQL Server.
SQL Server 入门
课程完成 加入超过19百万学习者,今天就开始SQL Server 入门!
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