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Avis et commentaires pour d'étudiants pour SQL for Data Science par Université de Californie à Davis

4.6
étoiles
13,083 évaluations

À propos du cours

As data collection has increased exponentially, so has the need for people skilled at using and interacting with data; to be able to think critically, and provide insights to make better decisions and optimize their businesses. This is a data scientist, “part mathematician, part computer scientist, and part trend spotter” (SAS Institute, Inc.). According to Glassdoor, being a data scientist is the best job in America; with a median base salary of $110,000 and thousands of job openings at a time. The skills necessary to be a good data scientist include being able to retrieve and work with data, and to do that you need to be well versed in SQL, the standard language for communicating with database systems. This course is designed to give you a primer in the fundamentals of SQL and working with data so that you can begin analyzing it for data science purposes. You will begin to ask the right questions and come up with good answers to deliver valuable insights for your organization. This course starts with the basics and assumes you do not have any knowledge or skills in SQL. It will build on that foundation and gradually have you write both simple and complex queries to help you select data from tables. You'll start to work with different types of data like strings and numbers and discuss methods to filter and pare down your results. You will create new tables and be able to move data into them. You will learn common operators and how to combine the data. You will use case statements and concepts like data governance and profiling. You will discuss topics on data, and practice using real-world programming assignments. You will interpret the structure, meaning, and relationships in source data and use SQL as a professional to shape your data for targeted analysis purposes. Although we do not have any specific prerequisites or software requirements to take this course, a simple text editor is recommended for the final project. So what are you waiting for? This is your first step in landing a job in the best occupation in the US and soon the world!...

Meilleurs avis

JP

5 avr. 2020

This course has really helped with optimizing queries that I work with everyday, enhancing my understanding of RDBMS, joins, analyzing and structuring exactly what you need and yielding those results.

JG

22 août 2021

I thought this course was great! Great introduction to Relational Databases and SQLite. Highly reccomend for anyone new to SQL, Databases, or someone looking to get started with a data science career.

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3251 - 3275 sur 3,470 Avis pour SQL for Data Science

par Edward K

29 juil. 2022

it's OK, but not great. Some directions are confusing and the ending assignment has unclear directions. An example syntax or more specific instructions would be helpful.

par Muhammad A D I M

29 oct. 2019

Overall good course. The lectures could be made a bit interesting and engaging with exercises broken up. Found the lectures monotonous however course material is good.

par Soheil S

26 déc. 2019

I think there are not enough examples to help students learn the syntaxes deeply. It seems that some examples that students can code simultaneously can help more.

par Jaivardhan D

27 juin 2020

Videos were lame and didn't bother withe examples much but exercises were good to learn basic SQL (although u can learn same thing from google if not better)

par Talal N

7 avr. 2020

The course starts easy and okay but the last assignment was so difficult. Quiz on what you teach and teach what we failed to understand (Assignment 4) part 3

par Sandra H

1 févr. 2022

Vgreat videos, good explanations.

no exercises, exercises were the tes really difficult

no direct contact person, many questions in the forum are very old

par Patricia W P

19 oct. 2020

This is a good intro course. Sometimes some of the content is covered too rapidly and needs additional supportive exercises to truly master the content.

par Nwosu C F

22 juin 2022

I really liked the format of the quizzes but some videos were codes without an output so it was hard picturing what some key word does like the GROUP BY

par George A L J

30 déc. 2019

Course instructor needed some improvement. It felt as though she was reading from cards the whole time and not really adding much value to the course.

par Shubham

21 avr. 2020

Week 3 was a bit difficult. The questions asked in the quiz were little different than that which were in the lecture video. Rest everything was fine

par Tural M

27 août 2018

The quiz questions does not match the material provided in the course. There are more easier ways to coding rather explained throughout the course!

par Andrés F L C

26 déc. 2019

The topics are well explained but the videos are monotonus (slides and the teacher talking). I think the course could be more interactive.

par Serena G

8 mars 2018

Good for learning basics of SQL but not much application and integration of concepts. In general, however, it is good for beginners.

par Kalide E

1 juin 2020

Course would be much better if you can work alongside the instructor. Using presentation slides in a coding class is not ideal imo.

par Daniel D

27 juil. 2022

This course needs more examples or exercises with solutions to give a better understanding and use case scenarios for each topic.

par Мамедбаков И Р

25 juin 2020

The lecturer maybe is a good data scientist but does not have the skills of presenting or explaining material in an easy manner.

par Luke R

9 août 2021

Good course overall, but the gap between what is tought and how complex some of the application can be is frustrating at times.

par Chan J J

14 juil. 2019

should have provided more explanation and help for exercises and assignment questions. The lecture is also not in depth enough.

par Chen K

3 nov. 2020

Course schedule was good , but content is a little short. To make improvement, should present some example during the video

par Thais S B

15 mars 2018

This is a good course for basic knowledge of SQL but the quizzes and assignments are very confusing and badly elaborated.

par Mohsin K

26 juil. 2020

This is a good course on SQL for Data Science. As you will particularly start from scratch and go uptil tedious methods

par Dhwanil V

14 août 2020

The overall format was quite good but it would be more helpful if more examples are included in the lecture videos.

par TSUBASA T

17 mai 2020

This course is helpful for beginners, but I felt that some explanation weren't clear and quizzes were challenging

par subraj s

1 juin 2021

Assignments could be more basic.

The level of difficulty should gradually increased.

Superb instructor though.

par Saswata B

3 juil. 2020

More explanation of concepts is required. Also it would have been better if SQL code was explained in depth.