How I solve the problem of SQL table relation with no foreign key in asp.net core

Apr 6, 2021 · 2 min read · Hi .. Intro I had a table with Primary Key (let's call it: Subject; Primary Key: Id) respectively. In the other table, there's a column I want to retrieve its count and data. so let's call it (Teacher; Primary key: TeacherId, SubjectId, ClassroomNam...