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_name_27 (years VARCHAR, roll VARCHAR, decile VARCHAR)

### Question ###
Name the Years of schools with a Roll Larger than 23 and a Decile greater than 5.

### Accurate SQL ###

SELECT years FROM table_name_27 WHERE roll > 23 AND decile > 5