Exception in declarative section to propagating in PL/SQL Block

Question

Hi All, I have a requirement to send emails to some receipient whenever there is an error in a process. The is working untill the put a wrong database link in the parameter, the cursor is in declarative statement, hence when other exception does not work, create and enclosing block around the initial block so that the exception can propagate to the enclosing block, but this does not work either, please advice. Below is the a brief pseudo code. The bold is the initial block. Please advice.
DECLARE
Invalid_table EXCEPTION;
PRAGMA EXCEPTION_INIT(Invalid_table, -00942);
BEGIN
declare
c_test number;
cursor c1 is select 1 from tt@sro4link1 --- wrong databaselink sent as a parameter
where 1 =1;
*/*Because the error is in the cursor select, no email is been sent, that was the reason I put an enclosing block, but the exception is not propagate either */*
BEGIN
OPEN C1;
FETCH C1 into c_test;
CLOSE C1;
EXCEPTION
WHEN OTHERS THEN
--- Send email
END; EXCEPTION
WHEN Invalid_table THEN
--- send email
END;
/

Answer 1

Ade2 wrote:
it is not a dynamic sql. Your description is not very clear about what is code and what is pseudo code, but if you are using substitution variables in sqlplus, then that is dynamic SQL.
sqlplus scans for substitution variables, prompts when needed, replaces the variable (substitutes) with the text input and passes the entire result to the database for validation.
If the substitution text input results in an invalid PL/SQL block then a compilation error is returned from the database. The PL/SQL cannot be compiled, it never runs, no run time exceptions are possible.
So you cannot use exceptions to detect errors in values input to substitution variables.
SQL> declare
  2    l_dummy number;
  3  begin
  4    select 1 into l_dummy from dual;
  5  end;
  6  /
PL/SQL procedure successfully completed.
SQL> declare
  2    l_dummy number;
  3  begin
  4    &5
  5  end;
  6  /
Enter value for 5: select 1 into l_dummy from dual;
old   4:   &5
new   4:   select 1 into l_dummy from dual;
PL/SQL procedure successfully completed.
SQL> /
Enter value for 5: this will not compile
old   4:   &5
new   4:   this will not compile
  this will not compile
ERROR at line 4:
ORA-06550: line 4, column 8:
PLS-00103: Encountered the symbol "WILL" when expecting one of the following:
:= . ( @ % ;