SQL - Left Join not working with switch statement - sql

Question

I am using MS Access 2007. Whenever I type Left Join, I get an error that says Left Join is not supported. Here's the SQL
TRANSFORM Count([Letter Status].Customer_ID) AS CountOfCustomer_ID
SELECT Switch(
[Race_1]=1,"White",
[Race_1]=2,"Black",
[Race_1]=3,"Asian",
[Race_1]=4,"Hispanic/Latino",
[Race_1]=5,"American Indian/ Alaskan Native",
[Race_1]=6,"Native Hawaiian or Pacific Islander",
[Race_1]=7,"Multiracial",
[Race_1]=8,"Other",
[Race_1]=9,"Unknown"
) AS Race
FROM Demographics
INNER JOIN (
[Status]
INNER JOIN
Research
ON [Status].Customer_ID = Research.Customer_ID
)
ON (Demographics.ID = [Letter Status].Customer_ID)
AND (Demographics.ID = Research.Customer_ID)
WHERE ((([Status].Count)=1))
GROUP BY [Status].Count, Demographics.Race_1
ORDER BY Research.Store_site
PIVOT Research.Store_site In (1,2,3,4,5,6,7,8,9,10);
Could someone please use the above code to show me where to place the Left Join in order to allow the rows for each Race to show in the table? Also, could you please show me how to replace Null Values with 0 in this code? I have tried to implement NZ() but have been unsuccessful.
Please help.

Answer 1

Look closely at your FROM clause.
FROM Demographics
INNER JOIN (
[Status]
INNER JOIN
Research
ON [Status].Customer_ID = Research.Customer_ID
)
ON (Demographics.ID = [Letter Status].Customer_ID)
AND (Demographics.ID = Research.Customer_ID)
You have an ON condition which refers to [Letter Status], but [Letter Status] isn't included among your source tables .... you do have one called [Status].
Start by building the JOINs in the query designer, so you know you're starting with SQL which Access will accept.
And simplify this thing until you get the JOINs sorted out. Get rid of Switch, TRANSFORM, PIVOT, and GROUP BY until after you have JOINs working.