I have three tables A,B,C.
A has one to many relationship with C
B has one to many relationship with C

Now I have six objects as follows

ObjA1 ---> of type A

ObjA2 ---> of typeA

ObjB1---> of type B

ObjB2-> of type B

ObjC1--> Of type C & Having link to ObjA1 and ObjB1

ObjC2-> Of type C & Having link to ObjA2and ObjB2


First I save all these objects one by one

Next I update ObjA2

Then I delete ObJC1,ObjC2,ObjB1,ObjB2 in that order.

But when i try to delete ObjA1 it gives the following exception

SQL insert, update or delete failed (expected affected row count: 1, actual affected row count: 0). Possible causes: the row was modified or deleted by another user, or a trigger is reporting misleading row count.

I have no triggers in database

What could be the problem ?How to solve it?

Thanks,

Sandipan