Create update-using-select-via-subquery-sqlserver.sql

Author: umara-123

updating/update-using-select/update-using-select-via-subquery-sqlserver.sql

@@ -0,0 +1,13 @@
+-- Method 1: Update via Subquery
+UPDATE Course
+SET is_active = (
+    SELECT CASE 
+        WHEN Department.code = 'CS' THEN 'Yes'
+        ELSE 'No'
+    END
+    FROM Department
+    WHERE Department.id = Course.department_id
+);
+
+-- View result
+SELECT * FROM Course;