Question

I am having problem with the SQL Query.

I want to find StatusID = 1 in the records table IF StatusID = 2 does not exist.

I have tried the query:

SELECT * FROM records AS A
   LEFT JOIN records AS B on B.StoreID = A.StoreID
WHERE A.StatusID = 1 AND B.StatusID != 2

It is still showing the result even if StatusID = 2 is exist.

Note: StoreID are the ref id in the records table.

Answer 1

You want to use NOT EXISTS:

SELECT * 
FROM records AS A
WHERE A.StatusID = 1 
AND NOT EXISTS (select B.StoreID 
                from records AS B 
                where B.StoreID = A.StoreIDB 
                and B.StatusID = 2)