Update README links, exercise structure, and remove sample solutions in SQL lesson notebooks.

Author: aculich

.gitignore

@@ -0,0 +1 @@
+.ipynb_checkpoints/

README.md

@@ -31,10 +31,10 @@ This workshop does **not** cover the following:
 
 SQL Fundamentals is a 2 hour workshop, and is delivered in a lecture-style coding walkthrough interrupted by challenge problems and a break. Instructors and TAs are dedicated to engaging you in the classroom and answering questions in plain language.
 
-1. **Part 1: SQLite Installation**
-2. **Part 2: Simple SQLite Queries**
-3. **Part 3: Northwind Database Overview**
-4. **Part 4: Northwind SQLite Exercises**
+1. **[Part 1: SQLite Installation](SQLite-Setup.ipynb)**
+2. **[Part 2: Simple SQLite Queries](Simple-SQLite-Lesson.ipynb)**
+3. **[Part 3: Northwind Database Overview](SQL-Northwind-Lesson-Overview.ipynb)**
+4. **[Part 4: Northwind SQLite Exercises](SQL-Northwind-Lesson-Exercises.ipynb)**
 
 ## Installation Instructions
 

SQL-Northwind-Lesson-Exercises.ipynb

@@ -22,7 +22,9 @@
     "🔔 **Question**: A quick question to help you understand what's going on.<br>\n",
     "🥊 **Challenge**: Interactive exercise. We'll work through these in the workshop!<br>\n",
     "💡 **Tip:** How to do something a bit more efficiently or effectively.<br>\n",
-    "⚠️ **Warning:** Heads-up about tricky stuff or common mistakes.<br>"
+    "⚠️ **Warning:** Heads-up about tricky stuff or common mistakes.<br>\n",
+    "\n",
+    "For the exercises below, you can find the [Solutions for Northwind SQLite Exercises here](SQL-Northwind-Lesson-Exercises.ipynb)."
    ]
   },
   {
@@ -32,9 +34,25 @@
    "source": [
     "### Sections\n",
     "1. [Basic SELECT Queries](#ex1)\n",
-    "2. [Diagram of Northwind Database Schema](#ex2)\n",
-    "3. [Observations About the Schema](#ex3)\n",
-    "4. [Primary Key (PK) vs. Foreign Key (FK)](#ex3)"
+    "2. [Filtering Data with WHERE Clause](#ex2)\n",
+    "3. [Sorting Data with ORDER BY](#ex3)\n",
+    "4. [Joining Tables](#ex4)\n",
+    "5. [Aggregate Functions and GROUP BY](#ex5)\n",
+    "6. [Advanced Joins and Subqueries](#ex6)\n",
+    "7. [Using Views](#ex7)\n",
+    "8. [Modifying Data](#ex8)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "15538170-3fb9-436f-8f6b-364c1f75ad79",
+   "metadata": {},
+   "source": [
+    "## Prerequisite Setup\n",
+    "\n",
+    "To enable the `%%sql` Python Magic in the code cells below, run these two setup steps to:\n",
+    "1. Load the SQL Jupyter Notebook extension\n",
+    "2. Open the SQLite database to allow this notebook to access it."
    ]
   },
   {
@@ -520,7 +538,7 @@
    "metadata": {},
    "source": [
     "<a id='ex7'></a>\n",
-    "### Exercise 7: Using Views (Optional)\n",
+    "### Exercise 7: Using Views\n",
     "\n",
     "**Objective:** Understand and create SQL views for recurring queries."
    ]