SQL Query involving joins - sql

Question

For an SQL assessment I have to carry out a query where I need to list the Car Sales in the past month ordered by Salesman Code.
I have created an SQL statement. However, when I run it, it lists nothing at all except the column names that I have included within the query. The SQL code I have used is below:
SELECT CarForSale.SalesmanCode,
Salesman.SalesmanName,
Customer.CustomerCode,
Customer.CustomerName,
Customer.CustomerAddress
FROM
(
Centre
INNER JOIN Customer
ON Centre.CentreCode = Customer.CentreCode
)
INNER JOIN CarForSale
ON (Customer.CustomerCode = CarForSale.CustomerCode)
AND (Centre.CentreCode = CarForSale.CentreCode), Salesman
WHERE CarForSale.CFSSoldDate BETWEEN CVDATE('01/02/2013') AND CVDATE('01/03/2013')
ORDER BY Salesman.SalesmanCode;
If anyone has any feedback or knows where I am going wrong I would much appreciate some assistance with this problem.
Here is some sample data as requested:
CFS Table
CFSCode CFSMake CFSModel CFSSellingPrice
000001 Mercedes W168 45000
CFSSoldDate CentreCode SalesmanCode CustomerCode
01/03/2013 00000001 0000000001 00000001
Salesman Table
SalesmanCode SalesmanName SalemanCommThisYear SalesmanStatus CentreCode
0000000001 Liam Jones 2250 senior 00000001
customer table
CustomerCode CustomerName CustomerAddress CentreCode CustomerStatus
00000001 Gina Smith 1, The Lake, 00000002 good
Merthyr Tydfil

Answer 1

In your current query, you have some unusual syntax:
AND (Centre.CentreCode = CarForSale.CentreCode), Salesman -- what's this
I am not sure what the , Salesman is supposed to be doing. But if you are trying to JOIN on the Salesman table, then your query will be:
SELECT CarForSale.SalesmanCode,
Salesman.SalesmanName,
Customer.CustomerCode,
Customer.CustomerName,
Customer.CustomerAddress
FROM ((Centre
INNER JOIN Customer
ON Centre.CentreCode = Customer.CentreCode)
INNER JOIN CarForSale
ON (Customer.CustomerCode = CarForSale.CustomerCode)
AND (Centre.CentreCode = CarForSale.CentreCode)))
INNER JOIN Salesman
ON CarForSale.SalesmanCode = Salesman.SalesmanCode
WHERE CarForSale.CFSSoldDate BETWEEN #01/02/2013# AND #01/03/2013#
ORDER BY Salesman.SalesmanCode;
Also in MS Access, when using dates, they should be surrounded by pound sigs #. Your query should be:
SELECT CarForSale.SalesmanCode,
Salesman.SalesmanName,
Customer.CustomerCode,
Customer.CustomerName,
Customer.CustomerAddress
FROM ((Centre
INNER JOIN Customer
ON Centre.CentreCode = Customer.CentreCode)
INNER JOIN CarForSale
ON (Customer.CustomerCode = CarForSale.CustomerCode)
AND (Centre.CentreCode = CarForSale.CentreCode)))
INNER JOIN Salesman
ON CarForSale.SalesmanCode = Salesman.SalesmanCode
WHERE CarForSale.CFSSoldDate BETWEEN #01/02/2013# AND #01/03/2013#
ORDER BY Salesman.SalesmanCode;
Edit #1, I am not sure why you are joining on the Centre table since you are not using it for anything. I just ran the following query in MS Access using your sample data and got results:
SELECT CarForSale.SalesmanCode,
Salesman.SalesmanName,
Customer.CustomerCode,
Customer.CustomerName,
Customer.CustomerAddress
FROM (Customer
INNER JOIN CarForSale
ON Customer.CustomerCode = CarForSale.CustomerCode)
INNER JOIN Salesman
ON CarForSale.SalesmanCode = Salesman.SalesmanCode
WHERE CarForSale.CFSSoldDate BETWEEN #01/02/2013# AND #01/03/2013#
ORDER BY Salesman.SalesmanCode;