Nopcommerce export user roles - nopcommerce

Question

I'm trying to get a list of ALL user roles for each user through the nopcommerce database. i just need the Customer.Id, Customer.Username, Customer.Email and Customer.Role (some have multiple roles)
This is all jacked up.
SELECT Customer.Id, Customer.Username, Customer.Email, CustomerRole.Name
FROM ((Customer
INNER JOIN CustomerRole ON CustomerRole.Id = Customer.Id)
INNER JOIN Customer_CustomerRole_Mapping ON Customer_CustomerRole_Mapping.CustomerRole_Id = CustomerRole.Id)
Any help is greatly appreciated!

Answer 1

I think you need a LEFT OTUER JOIN because in your DB can be user without role; in this case you can use this:
SELECT DISTINCT CUST.Id, CUST.Username, CUST.Email, CR.Id, CR.Name,
CCRM.CustomerRole_Id ,
FROM CUSTOMER CUST
LEFT OUTER JOIN Customer_CustomerRole_Mapping CCRM
ON CUST.ID = CCRM.Customer_Id
LEFT OUTER JOIN CustomerRole CR
ON CCRM.CustomerRole_Id = CR.Id
Also, you can have only one row per user with a column with his roles, like this:
SELECT DISTINCT CUST.Id, CUST.Username, CUST.Email,
Roles = STUFF((
SELECT ',' + CAST(CR1.Name as varchar(4000))
FROM CustomerRole CR1
LEFT OUTER JOIN Customer_CustomerRole_Mapping CCRM1
ON CCRM1.CustomerRole_Id = CR1.Id
LEFT OUTER JOIN CUSTOMER CUST1
ON CUST1.ID = CCRM1.Customer_Id
WHERE CUST1.Id = CUST.Id
FOR XML PATH('')
), 1, 1, '')
FROM CUSTOMER CUST
LEFT OUTER JOIN Customer_CustomerRole_Mapping CCRM
ON CUST.ID = CCRM.Customer_Id
LEFT OUTER JOIN CustomerRole CR
ON CCRM.CustomerRole_Id = CR.Id
Depending of your using, last query can be a little bit slow if you have a lot of customers.