SELECT P.PARTY_ID , P.CATEGORY_CODE CUSTOMER_CATEGORY_FK , M.MARKET_SEGMENT_ID MARKET_SEGMENT_FK , P.COUNTRY , P.STATE , P.CITY FROM HZ_PARTIES P , AMS_PARTY_MARKET_SEGMENTS M WHERE P.PARTY_ID = M.PARTY_ID (+) AND M.MARKET_SEGMENT_FLAG(+) = 'Y' WITH READ ONLY