Update SQL_Class_5.txt

Author: shashank-mishra219

SQL_Class_5.txt

@@ -101,3 +101,16 @@ insert into amazon_sales_data values('2022-08-19',300);
 insert into amazon_sales_data values('2022-08-18',200);
 
 insert into amazon_sales_data values('2022-08-25',800);
+
+
+# Query - Calculate the date wise rolling average of amazon sales
+select * from amazon_sales_data;
+
+select *,
+       avg(sales_amount) over(order by sales_data) as rolling_avg
+from amazon_sales_data;
+
+select *,
+       avg(sales_amount) over(order by sales_data) as rolling_avg,
+       sum(sales_amount) over(order by sales_data) as rolling_sum
+from amazon_sales_data;