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 tryout ( pid number, cname text, ppos text, decision text )
TABLE: CREATE TABLE player ( pid number, pname text, ycard text, hs number )
TABLE: CREATE TABLE college ( cname text, state text, enr number )

### Question ###
What are the different names of the colleges involved in the tryout in alphabetical order?

### Accurate SQL ###

SELECT DISTINCT cname FROM tryout ORDER BY cname