diff --git a/sql-assessment/SQL Question 3 b/sql-assessment/SQL Question 3
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+++ b/sql-assessment/SQL Question 3	
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+SELECT
+    campaign_id,
+    SUM(cost) AS total_cost,
+    SUM(impressions) AS total_impressions,
+    SUM(clicks) AS total_clicks,
+    SUM(revenue) AS total_revenue
+FROM marketing_performance
+GROUP BY campaign_id;