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.
Este curso faz parte do Programa de cursos integrados Learn SQL Basics for Data Science
oferecido por
Programa de cursos integrados Learn SQL Basics for Data ScienceUniversidade da Califórnia, DavisInformações sobre o curso
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Resultados de carreira do aprendiz
32%
comecei uma nova carreira após concluir estes cursos
30%
consegui um benefício significativo de carreira com este curso
12%
recebi um aumento ou promoção
Certificados compartilháveis
Tenha o certificado após a conclusão
100% on-line
Comece imediatamente e aprenda em seu próprio cronograma.
Prazos flexíveis
Redefinir os prazos de acordo com sua programação.
Nível iniciante
Aprox. 14 horas para completar
Inglês
Legendas: Francês, Português (Brasil), Russo, Inglês, Espanhol
O que você vai aprender
Identify a subset of data needed from a column or set of columns and write a SQL query to limit to those results.
Use SQL commands to filter, sort, and summarize data.
Create an analysis table from multiple queries using the UNION operator.
Manipulate strings, dates, & numeric data using functions to integrate data from different sources into fields with the correct format for analysis.
Habilidades que você terá
Data ScienceData AnalysisSqliteSQL
Resultados de carreira do aprendiz
32%
comecei uma nova carreira após concluir estes cursos
30%
consegui um benefício significativo de carreira com este curso
12%
recebi um aumento ou promoção
Certificados compartilháveis
Tenha o certificado após a conclusão
100% on-line
Comece imediatamente e aprenda em seu próprio cronograma.
Prazos flexíveis
Redefinir os prazos de acordo com sua programação.
Nível iniciante
Aprox. 14 horas para completar
Inglês
Legendas: Francês, Português (Brasil), Russo, Inglês, Espanhol
oferecido por
Universidade da Califórnia, Davis
UC Davis, one of the nation’s top-ranked research universities, is a global leader in agriculture, veterinary medicine, sustainability, environmental and biological sciences, and technology. With four colleges and six professional schools, UC Davis and its students and alumni are known for their academic excellence, meaningful public service and profound international impact.
Programa - O que você aprenderá com este curso
4 horas para concluir
Getting Started and Selecting & Retrieving Data with SQL
In this module, you will be able to define SQL and discuss how SQL differs from other computer languages. You will be able to compare and contrast the roles of a database administrator and a data scientist, and explain the differences between one-to-one, one-to-many, and many-to-many relationships with databases. You will be able to use the SELECT statement and talk about some basic syntax rules. You will be able to add comments in your code and synthesize its importance.
4 horas para concluir
11 vídeos (Total 52 mín.), 2 leituras, 4 testes
11 videos
Module Introduction1min
What is SQL Anyway?7min
Data Models, Part 1: Thinking About Your Data5min
Data Models, Part 2: The Evolution of Data Models3min
Data Models, Part 3: Relational vs. Transactional Models5min
Retrieving Data with a SELECT Statement4min
Creating Tables7min
Creating Temporary Tables4min
Adding Comments to SQL5min
Summary1min
2 leituras
SQL Overview15min
Data Modeling and ER Diagrams35min
4 exercícios práticos
Let's Practice!30min
Practice Simple Select Queries30min
Module 1 Quiz30min
Module 1 Coding Questions10min
3 horas para concluir
Filtering, Sorting, and Calculating Data with SQL
In this module, you will be able to use several more new clauses and operators including WHERE, BETWEEN, IN, OR, NOT, LIKE, ORDER BY, and GROUP BY. You will be able to use the wildcard function to search for more specific or parts of records, including their advantages and disadvantages, and how best to use them. You will be able to discuss how to use basic math operators, as well as aggregate functions like AVERAGE, COUNT, MAX, MIN, and others to begin analyzing our data.
3 horas para concluir
9 vídeos (Total 49 mín.), 1 leitura, 3 testes
9 videos
Basics of Filtering with SQL8min
Advanced Filtering: IN, OR, and NOT7min
Using Wildcards in SQL6min
Sorting with ORDER BY4min
Math Operations4min
Aggregate Functions6min
Grouping Data with SQL5min
Putting it All Together3min
1 leituras
SQL for Various Data Science Languages25min
3 exercícios práticos
Module 2 Practice Quiz30min
Module 2 Quiz30min
Module 2 Coding Assignment45min
3 horas para concluir
Subqueries and Joins in SQL
In this module, you will be able to discuss subqueries, including their advantages and disadvantages, and when to use them. You will be able to recall the concept of a key field and discuss how these help us link data together with JOINs. You will be able to identify and define several types of JOINs, including the Cartesian join, an inner join, left and right joins, full outer joins, and a self join. You will be able to use aliases and pre-qualifiers to make your SQL code cleaner and efficient.
3 horas para concluir
10 vídeos (Total 56 mín.), 2 leituras, 3 testes
10 videos
Using Subqueries6min
Subquery Best Practices and Considerations5min
Joining Tables: An Introduction5min
Cartesian (Cross) Joins4min
Inner Joins8min
Aliases and Self Joins6min
Advanced Joins: Left, Right, and Full Outer Joins7min
Unions5min
Summary5min
2 leituras
SQL and Python10min
Union and Union All10min
3 exercícios práticos
Practice Quiz - Writing Queries30min
Module 3 Quiz30min
Module 3 Coding Assignment45min
4 horas para concluir
Modifying and Analyzing Data with SQL
In this module, you will be able to discuss how to modify strings by concatenating, trimming, changing the case, and using the substring function. You will be able to discuss the date and time strings specifically. You will be able to use case statements and finish this module by discussing data governance and profiling. You will also be able to apply fundamental principles when using SQL for data science. You'll be able to use tips and tricks to apply SQL in a data science context.
4 horas para concluir
10 vídeos (Total 53 mín.), 3 leituras, 3 testes
10 videos
Working with Text Strings7min
Working with Date and Time Strings5min
Date and Time Strings Examples5min
Case Statements7min
Views6min
Data Governance and Profiling5min
Using SQL for Data Science, Part 15min
Using SQL for Data Science, Part 26min
Course Summary2min
3 leituras
Additional SQL Resources to Explore15min
Welcome to Peer Review Assignments!10min
Yelp Dataset SQL Lookup5min
2 exercícios práticos
Module 4 Quiz30min
Module 4 Coding Questions35min
Avaliações
Principais avaliações do SQL FOR DATA SCIENCE
por NG27 de Ago de 2020
The course is nice but I suppose the PowerPoint presentation that accompanies it could use some effects to show us the clauses one by one, as they are spoke. That would make understanding them easier.
por JP5 de Abr de 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.
por AL21 de Ago de 2020
A comprehensive course that covers major aspects of query building and retrieval in a management system. The topics were delivered well and the materials/assignments were relevant for skill-building.
por AT17 de Nov de 2020
Well it was a short course, the assignments are a little bit repetitive (mostly in the last). The course reviews every 'practical' aspects of SQL, how to assemble the bricks while writing queries,...
Sobre Programa de cursos integrados Learn SQL Basics for Data Science
This Specialization is intended for a learner with no previous coding experience seeking to develop SQL query fluency. Through four progressively more difficult SQL projects with data science applications, you will cover topics such as SQL basics, data wrangling, SQL analysis, AB testing, distributed computing using Apache Spark, and more. These topics will prepare you to apply SQL creatively to analyze and explore data; demonstrate efficiency in writing queries; create data analysis datasets; conduct feature engineering, use SQL with other data analysis and machine learning toolsets; and use SQL with unstructured data sets.
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