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 station (name VARCHAR, id VARCHAR)
TABLE: CREATE TABLE status (station_id VARCHAR, bikes_available VARCHAR)

### Question ###
Return the unique name for stations that have ever had 7 bikes available.

### Accurate SQL ###

SELECT DISTINCT T1.name FROM station AS T1 JOIN status AS T2 ON T1.id = T2.station_id WHERE T2.bikes_available = 7