Print bind variables when using execute immediate - oracle

Question

i'm trying to print out the vSQL variable after the execute immediate statement.
i know the execute immediate statement ll give ORA-00903 because u can not bind variables to tables etc.i just want to print that string after using
statement.
here is my code :
DECLARE
vSQL VARCHAR2(100);
vOwner VARCHAR2(100);
vTableName VARCHAR2(100);
vPartition VARCHAR2(100);
BEGIN
vOwner := 'STG';
vTableName := 'TEMP';
vSQL := 'ALTER TABLE :1.:2 TRUNCATE PARTITION(:3)';
EXECUTE IMMEDIATE vSQL USING vOwner,vTableName,vPartition;
--DBMS_OUTPUT.PUT_LINE(vSQL); -- Something like this
END;
thx for ideas...

Answer 1

As the commenters wrote you can bind only data to fields, you can't bind library object's names/etc.
So I think you can do it only without binding:
DECLARE
vSQL VARCHAR2(100);
vOwner VARCHAR2(100);
vTableName VARCHAR2(100);
vPartition VARCHAR2(100);
BEGIN
vOwner := 'STG';
vTableName := 'TEMP';
vSQL := 'ALTER TABLE ' || vOwner || '.' || vTableName || ' TRUNCATE PARTITION('||vPartition||')';
EXECUTE IMMEDIATE vSQL;
DBMS_OUTPUT.PUT_LINE(vSQL);
END;

Answer 2

If you know an error is going to happen, catch it and then print.
DECLARE
vSQL VARCHAR2(100);
vOwner VARCHAR2(100);
vTableName VARCHAR2(100);
vPartition VARCHAR2(100);
BEGIN
vOwner := 'STG';
vTableName := 'TEMP';
vSQL := 'ALTER TABLE :1.:2 TRUNCATE PARTITION(:3)';
EXECUTE IMMEDIATE vSQL USING vOwner,vTableName,vPartition;
EXCEPTION --The error will get catched here.
WHEN OTHERS THEN
DBMS_OUTPUT.PUT_LINE(vSQL); --This will print exactly 'ALTER TABLE :1.:2 TRUNCATE PARTITION(:3)'
--If you want to print it with the variables do something like:
DBMS_OUTPUT.PUT_LINE('ALTER TABLE ' || vOwner || ', ' || vTableName || ', ' || vPartition;
END;