Database|MySQL] Write SQL queries for the following use cases: 1a)Which product(

Question

Database|MySQL] Write SQL queries for the following use cases:

1a)Which product(id and name) has the highest sales in JANUARY 1 2013?

b) What are the total sales of each store

c)Which store location has the highest sales?

CREATE TABLE dimcustomer
(
customerid int,
customeraltid varchar(10) not null,
customername varchar(50),
gender varchar(20),
PRIMARY KEY (customerid)
);

INSERT INTO dimcustomer(customerid,customeraltid,customername,gender) VALUES
(1,'IMI-001','Henry Ford','M'),
(2,'IMI-002','Bill Gates','M'),
(3,'IMI-003','Muskan Shaikh','F'),
(4,'IMI-004','Richard Thrubin','M'),
(5,'IMI-005','Emma Wattson','F');

CREATE TABLE dimproduct
(
productkey int,
productaltkey varchar(10) NOT NULL,
productname varchar(100),
productactualcost DECIMAL(10,2),
productsalescost DECIMAL(10,2),
PRIMARY KEY(productkey)
);

INSERT INTO dimproduct(productkey,productaltkey,productname,productactualcost, productsalescost) VALUES
(1,'ITM-001','Wheat Floor 1kg',5.50,6.50),
(2,'ITM-002','Rice Grains 1kg',22.50,24),
(3,'ITM-003','SunFlower Oil 1 ltr',42,43.5),
(4,'ITM-004','Nirma Soap',18,20),
(5,'ITM-005','Arial Washing Powder 1kg',135,139);

CREATE TABLE dimstore
(
storeid int,
storealtid varchar(10) NOT NULL,
storename varchar(100),
storelocation varchar(100),
city varchar(100),
state varchar(100),
country varchar(100),
PRIMARY KEY(storeid)
);

INSERT INTO dimstore(storeid, storealtid,storename,storelocation,city,state,country) VALUES
(1,'LOC-A1','X-Mart','S.P. RingRoad','Ahmedabad','Guj','India'),
(2,'LOC-A2','X-Mart','Maninagar','Ahmedabad','Guj','India'),
(3,'LOC-A3','X-Mart','Sivranjani','Ahmedabad','Guj','India');

CREATE TABLE dimsalesperson
(
salespersonid int,
salespersonaltid varchar(10) NOT NULL,
salespersonname varchar(100),
storeid int,
city varchar(100),
state varchar(100),
country varchar(100),
PRIMARY KEY(salespersonid)
);

INSERT INTO dimsalesperson(salespersonid, salespersonaltid,salespersonname,storeid,city,state,country ) VALUES
(1,'SP-DMSPR1','Ashish',1,'Ahmedabad','Guj','India'),
(2,'SP-DMSPR2','Ketan',1,'Ahmedabad','Guj','India'),
(3,'SP-DMNGR1','Srinivas',2,'Ahmedabad','Guj','India'),
(4,'SP-DMNGR2','Saad',2,'Ahmedabad','Guj','India'),
(5,'SP-DMSVR1','Jasmin',3,'Ahmedabad','Guj','India'),
(6,'SP-DMSVR2','Jacob',3,'Ahmedabad','Guj','India');

CREATE TABLE factproductsales
(
transactionid BIGINT AUTO_INCREMENT,
salesinvoicenumber int NOT NULL,
salesdatekey INT,
salesyearkey INT,
salesmonthkey INT,
salesdayKey INT,
storeid INT NOT NULL,
customerid INT NOT NULL,
productid INT NOT NULL,
salespersonid INT NOT NULL,
quantity float,
salestotalcost DECIMAL(10,2),
productactualcost DECIMAL(10,2),
PRIMARY KEY(transactionid)
);

AlTER TABLE factproductsales
ADD FOREIGN KEY (storeid) REFERENCES dimstore(storeid);

AlTER TABLE factproductsales
ADD FOREIGN KEY (customerid) REFERENCES dimcustomer(customerid);

AlTER TABLE factproductsales
ADD FOREIGN KEY (productid) REFERENCES dimproduct(productkey);

AlTER TABLE factproductsales
ADD FOREIGN KEY (salespersonid) REFERENCES dimsalesperson(salespersonid);

INSERT INTO factproductsales(salesinvoicenumber,salesdatekey,salesyearkey,salesmonthkey,salesdaykey,storeid,customerid,productid,salespersonid,quantity,productactualcost,salestotalcost) VALUES
(1,20130101,2013,01,01,1,1,1,1,2,11,13),
(1,20130101,2013,01,01,1,1,2,1,1,22.50,24),
(1,20130101,2013,01,01,1,1,3,1,1,42,43.5),

(2,20130101,2013,01,01,1,2,3,1,1,42,43.5),
(2,20130101,2013,01,01,1,2,4,1,3,54,60),

(3,20130101,2013,01,01,1,3,2,2,2,11,13),
(3,20130101,2013,01,01,1,3,3,2,1,42,43.5),
(3,20130101,2013,01,01,1,3,4,2,3,54,60),
(3,20130101,2013,01,01,1,3,5,2,1,135,139);

INSERT INTO factproductsales(salesinvoicenumber,salesdatekey,salesyearkey,salesmonthkey,salesdaykey,storeid,customerid,productid,salespersonid,quantity,productactualcost,salestotalcost) VALUES
(4,20130102,2013,01,02,1,1,1,1,2,11,13),
(4,20130102,2013,01,02,1,1,2,1,1,22.50,24),

(5,20130102,2013,01,02,1,2,3,1,1,42,43.5),
(5,20130102,2013,01,02,1,2,4,1,3,54,60),

(6,20130102,2013,01,02,1,3,2,2,2,11,13),
(6,20130102,2013,01,02,1,3,5,2,1,135,139),

(7,20130102,2013,01,02,2,1,4,3,3,54,60),
(7,20130102,2013,01,02,2,1,5,3,1,135,139);

INSERT INTO factproductsales(salesinvoicenumber,salesdatekey,salesyearkey,salesmonthkey,salesdaykey,storeid,customerid,productid,salespersonid,quantity,productactualcost,salestotalcost) VALUES
(8,20130103,2013,01,03,1,1,3,1,2,84,87),
(8,20130103,2013,01,03,1,1,4,1,3,54,60),

(9,20130103,2013,01,03,1,2,1,1,1,5.5,6.5),
(9,20130103,2013,01,03,1,2,2,1,1,22.50,24),

(10,20130103,2013,01,03,1,3,1,2,2,11,13),
(10,20130103,2013,01,03,1,3,4,2,3,54,60),

(11,20130103,2013,01,03,2,1,2,3,1,5.5,6.5),
(11,20130103,2013,01,03,2,1,3,3,1,42,43.5);

Explanation / Answer

Answer)

1a)Which product(id and name) has the highest sales in JANUARY 1 2013?

select productkey ,productname from dimproduct where productkey in(
select productid FROM factproductsales GROUP BY productid
HAVING sum(quantity)>=
(select max(mycount) FROM (select sum(quantity) mycount from factproductsales
where salesdatekey=20130101
group by productid) as T)
);

Output:

select storeid, sum(quantity) from factproductsales group by storeid;

Output:
storeid   sum(quantity)
1   37
2   6

c)Which store location has the highest sales?

select storelocation,city,state,country from dimstore where storeid in
(select storeid from factproductsales GROUP BY storeid having sum(quantity)>=
(select max(mycount) FROM (
select sum(quantity) mycount from factproductsales group by storeid) as T));
  
  
storelocation   city   state   country
S.P. RingRoad   Ahmedabad   Guj   India

productkey productname 1 Wheat Floor 1kg 2 Rice Grains 1kg 3 SunFlower Oil 1 ltr 4 Nirma Soap

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