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SQL Joins and Subqueries Course

SQL Joins and Subqueries Course
from 4 to 360h flexible workload
certificate valid in your country

What will I learn?

Master SQL joins, subqueries, and CTEs to write fast, reliable reporting queries in this focused course. You will learn advanced join types, anti-join patterns, window functions, and Top-N ranking, plus indexing and EXPLAIN ANALYZE for performance tuning. Practice time-based filtering, date arithmetic, and timezone handling while building clear, reusable SQL for accurate, production-ready analytics.

Elevify advantages

Develop skills

  • High-performance joins: Tune indexes, plans, and timeouts for fast SQL reporting.
  • Advanced subqueries and CTEs: Build clear, reusable logic for complex analytics.
  • Window functions and Top-N: Rank, segment, and aggregate large datasets with ease.
  • Time-based filtering mastery: Write accurate, timezone-aware date and event queries.
  • Clean, maintainable SQL: Enforce naming, validation, and documentation best practices.

Suggested summary

Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.
Workload: between 4 and 360 hours

What our students say

As suas aulas são perfeitas. Adquiri o pacote de um ano e, finalmente, tenho a oportunidade de acompanhar diversos temas do meu interesse sem precisar mudar de plataforma... agradeço por tudo o que fazem, já recomendei vocês a outras pessoas...
Giulio Carlo
Giulio CarloAluno de Marketing Digital
Eu gosto de como as lições são direto ao ponto e como eu consigo alterar capítulos e pular conteúdos que não preciso.
Mariana Ferres
Mariana FerresAluna de Fotografia
Gosto do conteúdo e do modo de apresentação e transcrição de vídeos, o que acelera o processo!
Luciana Alvarenga
Luciana AlvarengaAluna de Design de Unhas
A plataforma é rápida, simples de usar. A diversidade de conteúdo e os vídeos complementares ajudam muito no aprendizado.
Giulio Carlo
Giulio CarloAluno de Engenharia de Prompt

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