diff --git a/backend/db/schema/dailyAnalytics.schema.ts b/backend/db/schema/dailyAnalytics.schema.ts
index e1eaa98..49b97c2 100644
--- a/backend/db/schema/dailyAnalytics.schema.ts
+++ b/backend/db/schema/dailyAnalytics.schema.ts
@@ -4,30 +4,42 @@ import {
 	pgTable,
 	text,
 	timestamp,
+	unique,
 	uuid,
 } from "drizzle-orm/pg-core";
 
-export const analyticsDaily = pgTable("analytics_daily", {
-	id: uuid("id").defaultRandom().primaryKey(),
+export const analyticsDaily = pgTable(
+	"analytics_daily",
+	{
+		id: uuid("id").defaultRandom().primaryKey(),
 
-	businessDate: date("business_date").notNull(),
+		businessDate: date("business_date", { mode: "string" }).notNull(),
 
-	method: text("method").notNull(),
-	routePattern: text("route_pattern").notNull(),
-	module: text("module").notNull(),
+		method: text("method").notNull(),
+		routePattern: text("route_pattern").notNull(),
+		module: text("module").notNull(),
 
-	totalHits: integer("total_hits").notNull(),
-	uniqueUsers: integer("unique_users").notNull(),
+		totalHits: integer("total_hits").notNull(),
+		uniqueUsers: integer("unique_users").notNull(),
 
-	successCount: integer("success_count").notNull(),
-	errorCount: integer("error_count").notNull(),
+		successCount: integer("success_count").notNull(),
+		errorCount: integer("error_count").notNull(),
 
-	avgDurationMs: integer("avg_duration_ms").notNull(),
-	maxDurationMs: integer("max_duration_ms").notNull(),
+		avgDurationMs: integer("avg_duration_ms").notNull(),
+		maxDurationMs: integer("max_duration_ms").notNull(),
 
-	firstHitAt: timestamp("first_hit_at").notNull(),
-	lastHitAt: timestamp("last_hit_at").notNull(),
+		firstHitAt: timestamp("first_hit_at").notNull(),
+		lastHitAt: timestamp("last_hit_at").notNull(),
 
-	createdAt: timestamp("created_at").defaultNow().notNull(),
-	updatedAt: timestamp("updated_at").defaultNow().notNull(),
-});
+		createdAt: timestamp("created_at").defaultNow().notNull(),
+		updatedAt: timestamp("updated_at").defaultNow().notNull(),
+	},
+	(table) => [
+		unique("analytics_daily_business_route_unique").on(
+			table.businessDate,
+			table.method,
+			table.routePattern,
+			table.module,
+		),
+	],
+);
diff --git a/backend/utils/analyticRouteHits.utils.ts b/backend/utils/analyticRouteHits.utils.ts
index 1aa1c1a..360680c 100644
--- a/backend/utils/analyticRouteHits.utils.ts
+++ b/backend/utils/analyticRouteHits.utils.ts
@@ -61,7 +61,7 @@ export async function aggregateRouteHitsForBusinessDay() {
 
 	const rows = await db
 		.select({
-			businessDate: sql<string>`${businessDate}`,
+			businessDate: sql<string>`CAST(${businessDate} AS date)`,
 			method: analytics.method,
 			routePattern: analytics.routePattern,
 			module: sql<string>`COALESCE(${analytics.module}, 'unknown')`,
@@ -105,9 +105,16 @@ export async function aggregateRouteHitsForBusinessDay() {
 		};
 	}
 
+	const values = rows.map((row) => ({
+		...row,
+		businessDate: row.businessDate,
+		firstHitAt: new Date(row.firstHitAt),
+		lastHitAt: new Date(row.lastHitAt),
+	}));
+
 	await db
 		.insert(analyticsDaily)
-		.values(rows)
+		.values(values)
 		.onConflictDoUpdate({
 			target: [
 				analyticsDaily.businessDate,