CTE s IN SQL | Advanced SQL | Ashutosh Kumar

Sql one of the most important language asked in most of the analytics interviews,in this series i have discussed some advanced level sql concepts that are frequently asked in data analyst,business analyst interviews. In this video i have covered non equi joins concepts in sql

👉Query -

drop table if exists order_summary;
CREATE TABLE order_summary(orderid integer,amount integer,quantity integer);

INSERT INTO order_summary(orderid,amount,quantity)
VALUES (1,4922,8),
(2,7116,8),
(3,1206,4),

(4,2841,7),
(5,2522,2),
(6,5084,3),
(7,6680,4),
(8,8123,7),
(9,6015,2),
(10,4092,3),
(11,7224,2),
(12,7679,8),
(13,1303,2),
(14,5185,7),
(15,2139,8);

drop table if exists customer;
CREATE TABLE customer(cust_id integer,cust_first_name text,cust_last_name text);

INSERT INTO customer(cust_id,cust_first_name,cust_last_name)
VALUES (1,'Henry','Brown'),
(2,'James','Williams'),
(3,'Jack','Taylor');


drop table if exists orders;
CREATE TABLE orders(order_id integer,date date,cust_id integer);

INSERT INTO orders(order_id,date,cust_id)
VALUES
(1,'05-08-2020',1),
(2,'04-08-2020',2),
(3,'03-08-2020',3),
(4,'04-08-2020',1),
(5,'05-08-2020',2),
(6,'05-08-2021',3),
(7,'04-08-2021',1),
(8,'03-08-2021',2),
(9,'04-08-2021',3),
(10,'05-08-2021',2),
(11,'05-08-2022',1),
(12,'04-08-2022',2),
(13,'03-08-2022',3),
(14,'04-08-2022',1),
(15,'05-08-2022',2);



select * from orders;
select * from order_summary;
select * from customer;



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