CREATE TABLE table_name_21 (years VARCHAR2, soap_opera VARCHAR2, actor VARCHAR2)

what is the years when the soap opera is glenroe and the actor is mick lally?
SELECT years FROM table_name_21 WHERE soap_opera = "glenroe" AND actor = "mick lally"
SELECT "years" FROM "table_name_21" WHERE "actor" = "mick lally" AND "glenroe" = "soap_opera"