Hi Talendforge, Using TOS 3.1.0, I accounter a problem with tOracleOutput and the default NUMBER length and precision when left blank in a filed which I expect to be blank in the generated request. Instead I have a request with NUMBER(0,0) which is rejected by Oracle itself. the length should be between 1 and 38 (ORA-01727) I am using a modified table schema from the database which contains this field, which is connected to the tOracleOutput component. other cases exists but this is what I have in mind that causes my actual problem. is it a bug or am i doing something wrong?