Retrieve Data using Single-Table SQL Queries
Explain how the concept of data retrieval is used in computer systems.
Generate successful SQL single-table queries for data retrieval.
Apply data analysis techniques to devise a query that answers a request.
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.
Habilidades que você desenvolverá
- Database (DBMS)
- Problem Solving
- Sql Commands
- SQLiteStudio
Aprender passo a passo
Em um vídeo reproduzido em uma tela dividida com a área de trabalho, seu instrutor o orientará sobre esses passos:
Your First Query
The SELECT Clause
The ORDER BY Clause
The WHERE Clause
The Combination WHERE Clause
Great Analysis Makes a Great Query
Saving and Reusing Queries
Como funcionam os projetos guiados
Sua área de trabalho é um espaço em nuvem, acessado diretamente do navegador, sem necessidade de nenhum download
Em um vídeo de tela dividida, seu instrutor te orientará passo a passo
Avaliações
Principais avaliações do RETRIEVE DATA USING SINGLE-TABLE SQL QUERIES
A quick, easy to follow introduction to SQL data retrieval. Practicing alongside the instructor helped to cement my understanding.
This Project provides the basic syntax and well explanation for SQL as well as SQLitestudio. Thank you!
Short and Simple .... Enjoyed the course and i do appreciate the project guide for her excellent support!
It was a good course but was a bit short. The instructer was good and provided enough tips.
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Perguntas Frequentes – FAQ
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