4 lines
		
	
	
		
			146 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
			
		
		
	
	
			4 lines
		
	
	
		
			146 B
		
	
	
	
		
			SQL
		
	
	
	
	
	
select gg.GroupName, count(*) howmany from users uu
 | 
						|
join Memberships mm on uu.UID = mm.uid
 | 
						|
join Groups gg on mm.GID = gg.GID
 | 
						|
group by gg.GroupName |