Sql statement that will display all of the products that each customer is buying

Question

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I have customer table and product table.

SQL

Customer table column : (c_id,f_name,l_name,email,group,state, c_id is primary key)

Product Table column: (p_id,c_id,p_name,p_desc,time,c_id is foreign key).

I want to know how to get the result for below question:

1)display all of the products that each customer is buying.

2)Using question(1) display how many customers are from each state from this query.

I am just getting into sql and started learning myself.I dont know weather I am correct with the below queries. Please do help me.
Thanks for the help.

What I have tried:

Answer:

1st question answer:

SQL

SELECT DISTINCT p_name FROM PRODUCT;

2nd question answer :

SQL

SELECT A.state,B.p_name,count(A.state) AS Total 
FROM CUSTOMER AS A 
INNER JOIN PRODUCT AS B 
ON A.c_id=B.c_id GROUP BY STATE;

Posted 22-Nov-16 18:20pm

prajwal rao

Updated 19-May-21 6:59am

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3 solutions

Solution 1

Quote:
I don't know weather I am correct with the below queries.

There is an easy way to know if a query is correct or not: Just give it a try and you will see if the answer is as expected or not.
Experimenting is a great way to learn. To test a query, start by setting data that reflect 1 of the situations to handle then launch the query and check the answer, then start again with next dataset.

Here is a great tutorial site
SQL Tutorial[^]

Posted 22-Nov-16 19:22pm

Patrice T

Updated 22-Nov-16 19:26pm

v2

Solution 4

Write SQL statement that will lists the number of product foe each supplier

Posted 19-May-21 6:59am

Member 15207054

Comments

Richard Deeming 20-May-21 11:48am

Your homework assignment is not a "solution" to this old, already-solved question.

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Yovena Chintya · Accepted Answer · 2016-11-23T22:15:00

1. Display all of the products that each customer is buying.

*I assume that you want get the list of all the product that bought by each customer.

SQL

SELECT c_id, p_name
FROM PRODUCT
GROUP BY c_id

2. Using question(1) display how many customers are from each state from this query.

SQL

SELECT p.p_name, c.state
FROM PRODUCT p JOIN CUSTOMER c
ON p.c_id = c.c_id

Anyway, the tables don't fulfill the Normalization.
You should separate the into 3 tables, which are Customers, Products and Orders. Don't store the Products and the Orders into 1 table. Because if you delete the product, then the Orders' data will be gone too.

Hope this helps.