如何首先使用实体​​框架数据库维护表中的多重关系？

Question

I am using Entity Framework 5 (DB first).In my project I want to show data of two tables which don't have direct relation, In following condition Table A is master Table. Table A and B are in relationship, B and C ,B and D are in relationship I want to show data from A,C and D . I don't know how should I maintain this relation in way that help me to use ORM query in Razor view .So that I can Use only one main model of Table A to show relational tables data

Answer 1

I would normalize your schema, changing TableB with relations columns for relations with TableA, for TableC and TableD,

TABLE B:
ID | fk_A | fk_C | fk_D
B1    A1     C1    null
B2    A1     C2    null
B3    A2     C3    null
B4    A2     null  D1
B5    A3     null  D2
B6    A3     null  D3

I don't know the nature of the relationship, but if B meaning is only to join A with other columns you could also have B3 and B4 in a single record like: B7 A2 C3 D1