Desafío SQL Avanzado Examen Pre-laboral Situación Real

Dive into practical SQL skills with this hands-on course designed to prepare you for real-world database challenges. You'll tackle exercises mirroring those found in pre-employment assessments, covering intermediate and advanced SQL concepts.

This course focuses on applying SQL to solve complex problems, building upon foundational knowledge. You will gain proficiency in:

• Data Interpretation: Understand data structure and types for effective querying.
• Database Design: Learn to create and populate tables efficiently.
• Advanced SQL Techniques: Master crucial concepts including:
  • GROUP BY and Aggregate Functions
  • Window Functions (OVER, PARTITION BY, ORDER BY, LIMIT)
  • Subqueries and Common Table Expressions (CTEs)
  • JOIN operations (including LEFT JOIN)
  • IF statements and RANK functions
  • COALESCE for handling null values
  • Mathematical functions (e.g., determining even/odd numbers, FLOOR)
  • Recursive CTEs
  • UNION ALL
• Problem-Solving: Develop analytical thinking and creative approaches to achieve desired results.
• Reading & Interpretation: Enhance your ability to understand and interpret SQL code.

The course progresses from simple scenarios to increasingly complex problems, ensuring you build a solid understanding of each concept. You'll receive practical application of each concept through exercises, with theoretical explanations and links to external resources for further exploration.

Important Note: This course assumes you have a working SQL database system and client installed. Basic SQL concepts are not covered. Tool installation is also outside the scope of this course.

Key SQL Concepts Covered:

• IF statement
• RANK function
• GROUP BY clause
• OVER clause
• PARTITION BY clause
• ORDER BY clause
• Subqueries
• Common Table Expressions (CTEs)
• Window Functions
• LIMIT clause
• JOIN operations
• LEFT JOIN
• COALESCE function
• Modulo operator (% - even/odd determination)
• FLOOR function
• Recursive CTEs
• UNION ALL

This course is designed to boost your SQL proficiency and equip you with the skills needed to excel in data analysis and database management roles. Get ready to sharpen your SQL skills and confidently tackle real-world database challenges!