mysql - Convert SQL Query into C# -


i have following sql query:

select  s.name, count(sc.id) classes  students s  left join studentsclasses sc on s.id = sc.studentid group s.name having count(sc.id) = 0 order count(sc.id); 

that query gets count of students classes , returns students least classes.

how can convert c#? attempt not yield expected result. have:

var query = (from students in ent.students                          join classes in ent.studentsclasses on students.id equals classes.studentid gj                          subpet in gj.defaultifempty()                          select new { students.name }).tolist(); 

however returns names of students registered in courses.

================================

here tables:

================== studentsclasses   ---------------- id (registration id of class) studentid (id of student taking class) classid (id of class) ---------------- ==================  students --------------- id (id of student) name (name of student) gradelevelid (grade of student) --------------- ================== 

final query

 var query = (from students in ent.students                          join classes in ent.studentsclasses on students.id equals classes.studentid gj                          subpet in gj.defaultifempty()                          orderby students.studentsclasses.count                          students.studentsclasses.count == 0                          select new { students.name }).tolist(); 

edit: fixed statement

ienumerable<igrouping<student, student>> query = student in ent.students     join studentclass in ent.studentclasses on student.id equals studentclass.studentid studentclassesj     studentclass in studentclassesj.defaultifempty()     group student student     studentgroup     select studentgroup;  ienumerable<student> result = query.where(x => x.count() == query.min(y => y.count())).select(x => x.key); 

be aware although stated sql query return students least umber of classes, sql returning users have no classes @ all, due having count(sc.id) = 0. linq statement provided not filtered, ordered number of classes, should able extend desired filtering.


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