Question

I have a SQL statement that I want to return 6 fields found from a MINUS statement that only compares 1 field from 2 tables. It works properly when the MINUS statement only returns 1 entry, but errors if it returns more than 1.

SELECT DROPPER_ID, EMAIL, ACTIVE, COUNTRY_CD, FIRST_NAME, LAST_NAME FROM PETE.DROPPER   
WHERE DROPPER_ID = (
    SELECT DROPPER_ID FROM PETE.DROPPER WHERE COUNTRY_CD <> 'USA' AND ACTIVE = 1 
    MINUS 
    SELECT DROPPER_ID FROM PETE.DROPPER_COMPARE);

How can I accomplish this?

Answer 1

Instead of using =, try using the IN statement:

SELECT DROPPER_ID, EMAIL, ACTIVE, COUNTRY_CD, FIRST_NAME, LAST_NAME FROM PETE.DROPPER   
WHERE DROPPER_ID IN (
    SELECT DROPPER_ID FROM PETE.DROPPER WHERE COUNTRY_CD <> 'USA' AND ACTIVE = 1 
    MINUS 
    SELECT DROPPER_ID FROM PETE.DROPPER_COMPARE);