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学生对 Coursera 提供的 Retrieve Data using Single-Table SQL Queries 的评价和反馈

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334 个评分

课程概述

In this course you’ll learn how to effectively retrieve data from a relational database table using the SQL language. We all know that most computer systems rely on at least one database to store data. Your tax information is stored in the database used by the Internal Revenue Service. Your phone stores your contacts’ names, addresses, email addresses, and phone numbers in a database. If you shop online, you’re viewing photos, descriptions, and prices of products that are stored in a database. Database designers go to great lengths to design databases so that the data can be stored securely and in an organized format. It’s important to note that the main reason they go to all that work is so that we can get the data back out again when we need it! That’s called “data retrieval”. Data is retrieved or read from a relational database by using a language called SQL to query (or question) the database. SQL is referred to as “the language of relational databases”. It can be used by itself or embedded in programs to retrieve data. Once the data is retrieved, it can be displayed on a web page or PC application, or even printed on paper. You’ll be practicing writing SQL queries using SQLiteStudio. Next time you go online and look up the daily special at your favorite restaurant, you can think about the fact that it’s likely that an SQL query was used behind the scenes to fetch that data and pop it up on your screen. By the end of this course, you’ll even have a pretty good idea what the query might have looked like! Note: This course works best for learners who are based in the North America region. We’re currently working on providing the same experience in other regions....

热门审阅

CP

Sep 3, 2020

A quick, easy to follow introduction to SQL data retrieval. Practicing alongside the instructor helped to cement my understanding.

DH

Jun 19, 2020

This Project provides the basic syntax and well explanation for SQL as well as SQLitestudio.Thank you!

筛选依据：

26 - Retrieve Data using Single-Table SQL Queries 的 50 个评论（共 55 个）

创建者 SHASHWATI G

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May 24, 2020

Very helpful.

创建者 Joti R M

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Nov 6, 2020

great work

创建者 R A K

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Jul 30, 2020

it is good

创建者 Rudhira V P

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Sep 30, 2020

Good one.

创建者 Doss D

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Jun 19, 2020

Thank you

创建者 AENGALA S

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Jul 26, 2020

good

创建者 عمر م ا

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Jul 14, 2020

good

创建者 tale p

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Jun 28, 2020

good

创建者 SAADURYA K V S

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Jun 27, 2020

NICE

创建者 Lavanya P

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Jun 25, 2020

GOOD

创建者 p s

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Jun 25, 2020

Nice

创建者 Vajinepalli s s

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Jun 18, 2020

nice

创建者 Yoldosheva G M

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Sep 14, 2020

zur

创建者 Yawer A

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Jul 5, 2020

It was a good course but was a bit short. The instructer was good and provided enough tips.

创建者 Pavithra K

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Jul 31, 2020

very tiny project but good if you dont know anything about sql, very clear explanation

创建者 nimish g

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Jun 16, 2020

Please improve the quality of video, i faced a lot of interruption in the videos

创建者 William H

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Nov 26, 2020

A very simple introduction for complete novices. A safe place to start in SQL.

创建者 Kunzang F

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Oct 12, 2020

understandable but some parts of the videos is damaged.

创建者 Tanmayee S

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Sep 8, 2020

basic! fine if you have just started learning sql

创建者 Uzair H

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Jun 23, 2020

Easy to understand and a great start to SQL.

创建者 Jason T

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Nov 29, 2023

Easy to follow and to the point

创建者 Meena M

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May 20, 2020

Bsehdbddhdhjdbdhd

创建者 pellakuri h b

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Jun 25, 2020

GOOD COURSE

创建者 Pawan K

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May 31, 2020

Excellent

创建者 Dimitra M

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Nov 11, 2020

Useful