Create synonym in System trigger

Question

How would i create a synonym in a system trigger?
I have created a trriger on CREATE,in which i m giving execute immediate command for creating a synonym and using dbms_job.submit .
it is not giving any error but its not creating any synonym on the table...
code:
create or replace trigger bdesai.DR_CRA
after CREATE OR DROP on bdesai.schema
declare
l_str varchar2(255);
l_str1 varchar2(255);
l_job number;
begin
CASE ORA_SYSEVENT
WHEN 'CREATE' THEN
if (ora_dict_obj_type = 'TABLE') then
l_str := 'execute immediate "grant select on bdesai.' ||ora_dict_obj_name ||' to eqhub_developer";';
l_str1 := 'execute immediate "create or replace synonym eqhub_developer'||'.'||ora_dict_obj_name ||' for bdesai'||'.'||ora_dict_obj_name||'";';
DBMS_OUTPUT.PUT_LINE(replace(l_str,'"',''''));
DBMS_OUTPUT.PUT_LINE(replace(l_str1,'"',''''));
dbms_job.submit( l_job, replace(l_str,'"','''') );
          dbms_job.submit( l_job, replace(l_str1,'"','''') );
END IF;
WHEN 'DROP' THEN
if ( ora_dict_obj_type = 'TABLE') then
l_str := 'execute immediate "revoke select on bdesai.' ||ora_dict_obj_name ||' from eqhub_developer";';
l_str1 := 'execute immediate "drop synonym eqhub_developer'||'.'||ora_dict_obj_name||'";';
DBMS_OUTPUT.PUT_LINE(replace(l_str,'"',''''));
DBMS_OUTPUT.PUT_LINE(replace(l_str1,'"',''''));
dbms_job.submit( l_job, replace(l_str,'"','''') );
dbms_job.submit( l_job, replace(l_str1,'"','''') );
END IF;
END CASE;
end;
/

Answer 1

i just want to know can we create a synonym or use any ddl command in a trriger body.We are not allowed to issue COMMITs inside a trigger. Triggers are fired as part of a transaction. Because a COMMIT marks the end of a transaction and the commencement of a new transaction, allowing them to be fored inside a trigger would really break the ACIDity of the database.
If you really want to do this (and I would argue whether it's a sound approach) you will have to code an autonomous transaction in the trigger body. .
Cheers, APC
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