🎓 Course Title:

SQL for Non-Engineers: Speak Data with Confidence

🧱 Course Objective:

To teach SQL fundamentals through real-world examples, enabling students to read, query, and analyze structured data confidently—even without a tech background.

🧭 10-Module Lesson Plan Overview

Module 1: What Is SQL and Why Should You Care?

Topics:

  • What is SQL?
  • How SQL relates to tables and spreadsheets
  • Real-life applications (marketing, education, inventory, content planning)
  • Exploring a simple public dataset (CSV to SQL)
    Activity:
    Walkthrough: Load a simple dataset (e.g., list of books or store sales) into an online SQL playground like Mode, SQLite, or DB Fiddle.

Module 2: Tables, Rows, and Columns – Your New Best Friends

Topics:

  • Understanding tables like digital filing cabinets
  • Rows = records, Columns = categories
  • How databases organize information
  • What makes a good table (clean, labeled, consistent)
    Activity:
    Explore a sample table and describe what each column means.

Module 3: SELECT Statements – The Gateway to Your Data

Topics:

  • Basic SELECT statements
  • Using LIMIT, ORDER BY, and DISTINCT
  • Syntax breakdown for non-coders
    Activity:
    Practice writing SELECT queries to pull specific data from a product or book list.

Module 4: Filtering with WHERE – Ask Smarter Questions

Topics:

  • Using WHERE to find what you need
  • Comparison operators: =, <, >, !=
  • Logical operators: AND, OR, NOT
    Activity:
    Write a query to find products under $20 or students with grades above 90.

Module 5: Sorting and Organizing with ORDER BY

Topics:

  • Sorting results by date, name, or value
  • ASC vs DESC
  • Combining with WHERE and LIMIT
    Activity:
    Find the top 5 best-selling products or most recent newsletter signups.

Module 6: GROUP BY and COUNT – Turn Data Into Insights

Topics:

  • What is aggregation?
  • COUNT, SUM, AVG, MIN, MAX
  • Using GROUP BY to summarize categories
    Activity:
    How many customers placed orders by state? What’s the average sale amount?

Module 7: JOINs Without the Jargon

Topics:

  • What are JOINS? (Analogy: connecting spreadsheet tabs)
  • INNER JOIN, LEFT JOIN simplified
  • When and why to use JOINs (e.g., orders + customer info)
    Activity:
    Join a customer table with an order table to get full names and amounts.

Module 8: NULLs and Missing Data – Don’t Panic

Topics:

  • What is NULL? Why does it matter?
  • Filtering or replacing NULLs
  • Avoiding common mistakes with missing values
    Activity:
    Find all products with no price or all users without email addresses.

Module 9: Real-World Reports with SQL

Topics:

  • Writing multi-step queries
  • Creating dashboards and reports
  • Sample scenarios (sales trends, student performance, blog traffic)
    Activity:
    Create a summary report with filters, grouping, and sorting.

Module 10: Safe SQL – Read-Only Power and Next Steps

Topics:

  • What you shouldn’t do in SQL (e.g., DELETE, DROP)
  • Best practices for exploring, not breaking
  • Free tools to practice and grow
    Activity:
    Write a final query for a portfolio (e.g., “Top 3 blog categories by views in May”).
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