SQL Query - Count column values separately
- by user575535
I have a hard time getting a Query to work right.
This is the DDL for my Tables
CREATE TABLE Agency (
id SERIAL not null,
city VARCHAR(200) not null,
PRIMARY KEY(id)
);
CREATE TABLE Customer (
id SERIAL not null,
fullname VARCHAR(200) not null,
status VARCHAR(15) not null CHECK(status IN ('new','regular','gold')),
agencyID INTEGER not null REFERENCES Agency(id),
PRIMARY KEY(id)
);
Sample Data from the Tables
AGENCY
id|'city'
1 |'London'
2 |'Moscow'
3 |'Beijing'
CUSTOMER
id|'fullname' |'status' |agencyid
1 |'Michael Smith' |'new' |1
2 |'John Doe' |'regular'|1
3 |'Vlad Atanasov' |'new' |2
4 |'Vasili Karasev'|'regular'|2
5 |'Elena Miskova' |'gold' |2
6 |'Kim Yin Lu' |'new' |3
7 |'Hu Jintao' |'regular'|3
8 |'Wen Jiabao' |'regular'|3
I want to produce the following output, but i need to count separately for ('new','regular','gold')
'city' |new_customers|regular_customers|gold_customers
'Moscow' |1 |1 |1
'Beijing'|1 |2 |0
'London' |1 |1 |0
