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SQL>
SQL> set serveroutput on
SQL>
SQL> create or replace procedure proc0 is
2 begin
3 RAISE no_data_found;
4 end;
5 /
Procedure created.
SQL>
SQL> create or replace procedure proc1 is
2 begin
3 NULL;
4 dbms_output.put_line ('calling proc0');
5 proc0;
6 EXCEPTION
7 WHEN OTHERS THEN RAISE DUP_VAL_ON_INDEX;
8 end;
9 /
Procedure created.
SQL>
SQL> create or replace procedure proc2 is
2 begin
3 dbms_output.put_line ('calling proc1');
4 proc1;
5 EXCEPTION
6 WHEN OTHERS THEN RAISE value_error;
7 end;
8 /
Procedure created.
SQL>
SQL> create or replace procedure proc3 is
2 begin
3 dbms_output.put_line ('calling proc2');
4 proc2;
5 end;
6 /
Procedure created.
SQL>
SQL> BEGIN
2 proc3;
3 END;
4 /
calling proc2
calling proc1
calling proc0
BEGIN
*
ERROR at line 1:
ORA-06502: PL/SQL: numeric or value error
ORA-06512: at "RNTSOFT.PROC2", line 6
ORA-00001: unique constraint (.) violated
ORA-06512: at "RNTSOFT.PROC1", line 7
ORA-01403: no data found
ORA-06512: at "RNTSOFT.PROC3", line 4
ORA-06512: at line 2
SQL>
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