Call a function inside a function..

Question

Hi..!
I have a function with 3 insert statements. The steps are..
1. insert into tab1 values(X);
2.Call function b ( having 2 insert statements);
3.insert into tab2 values(y); (fail statement)
4.insert into tab3 values(z);
What happens if the 3rd insert fails ??? Any idea !!!

Answer 1

Homework ?
The answer depends on does function b commit transaction or not.
If not - all changes made in the function will be rollbacked, including
changes in function B (PL/SQL behavoiur).
If yes - only 3 and 4 steps will be rollbacked.
See example:
SQL> create table tab1 (id number primary key);
Table created.
SQL> create or replace procedure foo
  2  is
  3  begin
  4   insert into tab1 values(2);
  5  end;
  6  /
Procedure created.
SQL> create or replace procedure foo1
  2  is
  3  begin
  4   insert into tab1 values(1);
  5   foo;
  6   insert into tab1 values(1);
  7   insert into tab1 values(3);
  8  end;
  9  /
Procedure created.
SQL> select * from tab1;
no rows selected
SQL> exec foo1
BEGIN foo1; END;
ERROR at line 1:
ORA-00001: unique constraint (SCOTT.SYS_C0011444) violated
ORA-06512: at "SCOTT.FOO1", line 6
ORA-06512: at line 1
SQL> select * from tab1;
no rows selected
SQL> create or replace procedure foo
  2  is
  3  begin
  4   insert into tab1 values(2);
  5   commit;
  6  end;
  7  /
Procedure created.
SQL> exec foo1
BEGIN foo1; END;
ERROR at line 1:
ORA-00001: unique constraint (SCOTT.SYS_C0011444) violated
ORA-06512: at "SCOTT.FOO1", line 6
ORA-06512: at line 1
SQL> select * from tab1;
        ID
         1
         2 Rgds.