Upload 186

Author: ggeerraarrdd

README.md

@@ -1,6 +1,6 @@
 <!-- markdownlint-disable MD041 -->
 [![eevveerryyddaayy release](https://img.shields.io/badge/eevveerryyddaayy-v1.3.0-blue.svg)](https://github.com/ggeerraarrdd/eevveerryyddaayy/)
-[![Solved](https://img.shields.io/badge/solved-185-green.svg)](#index)
+[![Solved](https://img.shields.io/badge/solved-186-green.svg)](#index)
 <!-- markdownlint-enable MD041 -->
 
 # SQL Everyday
@@ -219,6 +219,7 @@ Because this project necessitated a framework to enable consistent daily practic
 | 183   | [Product Sales Analysis II](https://leetcode.com/problems/product-sales-analysis-ii/description/)                                                                 | [Solution](solutions/183_product_sales_analysis_ii.md)                                  | LeetCode    | Easy         |                                                                     |
 | 184   | [Project Employees II](https://leetcode.com/problems/project-employees-ii/description/)                                                                           | [Solution](solutions/184_project_employees_ii.md)                                       | LeetCode    | Easy         | Window function w/ `GROUP BY`                                       |
 | 185   | [Sales Analysis I](https://leetcode.com/problems/sales-analysis-i/description/)                                                                                   | [Solution](solutions/185_sales_analysis_i.md)                                           | LeetCode    | Easy         |                                                                     |
+| 186   | [Sales Analysis II](https://leetcode.com/problems/sales-analysis-ii/description/)                                                                                 | [Solution](solutions/186_sales_analysis_ii.md)                                          | LeetCode    | Easy         | `STRING_AGG` vs `GROUP_CONCAT`                                      |
 <!-- Index End - WARNING: Do not delete or modify this markdown comment. -->
 <!--- cSpell:enable --->
 

solutions/186_sales_analysis_ii.md

@@ -0,0 +1,56 @@
+# SQL Everyday \#186
+
+## Sales Analysis II
+
+Site: LeetCode\
+Difficulty per Site: Easy
+
+## Problem
+
+Write a solution to report the **buyers** who have bought *S8* but not *iPhone*. Note that *S8* and *iPhone* are products presented in the `Product` table.
+
+Return the resulting table in **any order**. [[Full Description](https://leetcode.com/problems/sales-analysis-ii/description/)]
+
+## Submitted Solution
+
+```sql
+-- Submitted Solution
+WITH cte AS (
+    SELECT
+        s.buyer_id
+        ,STRING_AGG(p.product_name, ',') AS products
+    FROM Sales AS s
+    JOIN Product AS p ON s.product_id = p.product_id
+    GROUP BY s.buyer_id
+)
+SELECT
+    buyer_id
+FROM cte
+WHERE products LIKE '%S8%'
+    AND products NOT LIKE '%iPhone%'
+;
+```
+
+## Site Solution
+
+```sql
+-- LeetCode Solution 
+SELECT DISTINCT s.buyer_id
+FROM Sales s
+JOIN Product p
+ON s.product_id = p.product_id
+GROUP BY s.buyer_id
+HAVING GROUP_CONCAT(p.product_name) LIKE '%S8%'
+AND GROUP_CONCAT(p.product_name) NOT LIKE '%iPhone%'
+```
+
+## Notes
+
+TBD
+
+## NB
+
+`STRING_AGG` vs `GROUP_CONCAT`
+
+Go to [Index](../?tab=readme-ov-file#index)\
+Go to [Overview](../?tab=readme-ov-file)