Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_63890 ( "Actor" text, "Character" text, "Soap Opera" text, "Years" text, "Duration" text )

### Question ###
what is the soap opera when the duration is 18 years and the character is miley byrne?

### Accurate SQL ###

SELECT "Soap Opera" FROM table_63890 WHERE "Duration" = '18 years' AND "Character" = 'miley byrne'