Nested Map

Question

I have an object A and another object 'junctionA' having two lookups to object 'A' like, parentRec(lookup)->A and childRec(lookup)->A.

Now here

A1->A2->A3->A4..

A2 is the child of A1 and A3 is the child of A2 n soo on..

How can I write a dynamic query on A get the related childs of it.

The hierarchy here is dynamic A1-> can have A2 as child and A2 having child -A3

but another record may have only up to only level like A-A1

can somebody pls help in writing the dynamic query on A and the junction object in nested query..

Thanks in Advance

Sruthi M · Answer

Point missed: A can have A1,A2 as childs and A2 can inturn have A3 and A4

Apex