Question

This is the PL/SQL code. I want to DBMS output the complete query as it is executed since it fails.

vSql := 'SELECT :p_nomeCampo FROM :vTable WHERE :vPkColumn = :p_id';
EXECUTE IMMEDIATE vSql INTO vOutput USING p_nomeCampo, vTable, vPkColumn, p_id;

Answer 1

Not directly answering the question, but it’s probably failing because you can only bind variable values, not object names; so only :p_id is valid here. The best you can probably do is:

vSql := 'SELECT ' || p_nomeCampo || ' FROM ' || vTable
    || ' WHERE ' || vPkColumn || ' = :p_id';

Of course you need to be sure the values you have for p_nomeCampo, vTable and vPkColumn aren’t susceptible to SQL injection.

It helps to show the error you’re getting, though again in this case that’s not directly the point of the question…