Data with Charles

Back to Basics - SQL 01 – Um Guia Prático Para Inciantes

Charles De Barros , Feb 17, 2026
Tags: sql sql basics relational databases data analysis backend development

Introdução ao SQL: O que é SQL e como ele funciona SQL (Structured Query Language - Linguagem de Consulta Estruturada) é a linguagem padrão usada para interagir com bancos de...

Back to Basics - SQL 01 – A Practical Beginner’s Guide

Charles De Barros , Feb 17, 2026
Tags: sql sql basics relational databases data analysis backend development

SQL Introduction: What SQL is and how it works SQL (Structured Query Language) is the standard language used to interact with relational databases. If you work with data, applications, analytics,...

WHERE e HAVING - Back to Basics - SQL 06

Charles De Barros , Dec 09, 2025
Tags: Back to Basics SQL

Filtragem SQL com WHERE e HAVING (Com diagramas, ilustrações e desafios adicionais) Índice Visão Geral Entendendo WHERE O que é Agregação? HAVING filtra grupos agregados WHERE vs HAVING Quando Usar...

WHERE and HAVING - Back to Basics - SQL 06

Charles De Barros , Dec 09, 2025
Tags: Back to Basics SQL

SQL filtering with WHERE and HAVING (With diagrams, ilustrationsn and practice challenges) Table of Contents SQL Filtering with WHERE and HAVING Understanding WHERE What Is Aggregation? HAVING Filters Aggregated Groups...

ORDER BY and GROUP BY - Back to Basics - SQL 05

Charles De Barros , Sep 16, 2025
Tags: Back to Basics SQL

ORDER BY vs GROUP BY in SQL: A Complete Guide with Examples Table of Contents Introduction What is ORDER BY? Basic Syntax Beginner Example Intermediate Example Advanced Example What is...

ORDER BY e GROUP BY - Back to Basics - SQL 05

Charles De Barros , Sep 02, 2025
Tags: Back to Basics SQL

ORDER BY vs GROUP BY no SQL: Um Guia Completo com Exemplos Índice Introdução O que é ORDER BY? Sintaxe Básica Exemplo para Iniciantes Exemplo Intermediário Exemplo Avançado O que...

Hi, I'm Charles. I am a Data Analyst interested in the Environment, Hospitality, Tech, Education, and Science. I enjoying working with Python, Excel, Power BI and and SQL. I bake in my spare time.

Back to Basics - SQL 01 – Um Guia Prático Para Inciantes

Back to Basics - SQL 01 – A Practical Beginner’s Guide

WHERE e HAVING - Back to Basics - SQL 06

WHERE and HAVING - Back to Basics - SQL 06

ORDER BY and GROUP BY - Back to Basics - SQL 05

ORDER BY e GROUP BY - Back to Basics - SQL 05

Hi, I'm Charles.

I am a Data Analyst interested in the Environment, Hospitality, Tech, Education, and Science.

I enjoying working with Python, Excel, Power BI and and SQL.

I bake in my spare time.