CREATE TABLE table_name_30 (date VARCHAR2, opponent VARCHAR2, score VARCHAR2)

On what Date was the Score 106-104 against the Portland Trail Blazers?
SELECT date FROM table_name_30 WHERE opponent = "portland trail blazers" AND score = "106-104"
SELECT "date" FROM "table_name_30" WHERE "106-104" = "score" AND "opponent" = "portland trail blazers"