Using WHERE NOT EXISTS in MS Access SQL Query

Question

I have a query that matches a field from a query to another field from a table. Here is the query:

SELECT DISTINCT CarriersToSend.Carrier, [Dual Year Carrier Re         


        

Answer 1

Your NOT EXISTS with subquery didn't connect with the main query, so that will didn't return any result.

You can try this.

SELECT DISTINCT EE_First, EE_LAST
FROM [Dual Year Carrier Report] t1
WHERE NOT EXISTS 
(
    SELECT 1
    FROM CarriersToSend t2
    WHERE t1.TPA_CARRIER = t2.Carrier
)

Answer 2

Your semi colon should come after the closing parenthesis. Apart from that, your query will logically never return any records. That's because your subquery returns a result and then you are trying to return a result that doesn't match the result of the subquery. This will logically result in a false condition. Try this instead:

SELECT DISTINCT EE_First, EE_LAST
FROM [Dual Year Carrier Report]
WHERE NOT EXISTS 
(
SELECT '1'
FROM CarriersToSend INNER JOIN [Dual Year Carrier Report] ON 
CarriersToSend.Carrier = [Dual Year Carrier Report].TPA_CARRIER
);