-- Database schema
| basketball_match : Team_ID [ INT ] primary_key , School_ID [ INT ] basketball_match.School_ID = university.School_ID , Team_Name [ TEXT ] , ACC_Regular_Season [ TEXT ] , ACC_Percent [ TEXT ] , ACC_Home [ TEXT ] , ACC_Road [ TEXT ] , All_Games [ TEXT ] , All_Games_Percent [ INT ] , All_Home [ TEXT ] , All_Road [ TEXT ] , All_Neutral [ TEXT ] | university : School_ID [ INT ] primary_key , School [ TEXT ] , Location [ TEXT ] , Founded [ INT ] , Affiliation [ TEXT ] , Enrollment [ INT ] , Nickname [ TEXT ] , Primary_conference [ TEXT ] |
-- -- Count the number of universities that do not participate in the baketball match.

SELECT count(*) FROM university WHERE school_id NOT IN (SELECT school_id FROM basketball_match);