From 1a8f57b3bb17717cf0dd816c4ab8af06ed314197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Antonio=20Chac=C3=B3n=20Guti=C3=A9rrez?=
 <138903866+joseantoniochacon@users.noreply.github.com>
Date: Tue, 11 Jun 2024 14:37:08 -0600
Subject: [PATCH] Time: 536 ms (94.02%), Space: 0B (100.00%) - LeetHub

---
 .../1789-primary-department-for-each-employee.sql               | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 1789-primary-department-for-each-employee/1789-primary-department-for-each-employee.sql

diff --git a/1789-primary-department-for-each-employee/1789-primary-department-for-each-employee.sql b/1789-primary-department-for-each-employee/1789-primary-department-for-each-employee.sql
new file mode 100644
index 0000000..43f9538
--- /dev/null
+++ b/1789-primary-department-for-each-employee/1789-primary-department-for-each-employee.sql
@@ -0,0 +1,2 @@
+# Write your MySQL query statement below
+SELECT employee_id, department_id FROM Employee GROUP BY employee_id HAVING COUNT(department_id) = 1 UNION SELECT employee_id, department_id FROM Employee WHERE primary_flag = 'Y'
\ No newline at end of file