Creating blank column in view

Question

Hi guys, I have created a view which obviously gets data from different tables, however I will (in the future) have an additional row in this view obtaining data from somewhere but as of yet that data does not exist, is it possible to create a row in a view and stick a random value in it untill i have the data available to go back and change it. The reason i need this row is that im creating a report and I want to bring in the column with some random txt in it then once the data is available simply change the view which will save me having to change the report if you get my drift?
Any help would be greatly appreciated.

Answer 1

786733 wrote:
Hi guys, I have created a view which obviously gets data from different tables, however I will (in the future) have an additional row in this view obtaining data from somewhere but as of yet that data does not exist, is it possible to create a row in a view and stick a random value in it untill i have the data available to go back and change it. The reason i need this row is that im creating a report and I want to bring in the column with some random txt in it then once the data is available simply change the view which will save me having to change the report if you get my drift?
Any help would be greatly appreciated.I think you want to add a column to the view (as the header suggests) and not an additional row. An addition row would make no difference for any reports. However an additional column will need to be cosidered in a report that is build upon that view.
You can add extra columns to all selects statements. And your view is nothing but a stored select.
example
/* Base select */
select * from dual;
DUMMY
X    
/* Add a string null column colA */
select d.*, '' as colA  from dual d;
DUMMY COLA
X    
/* Add a number column colA */
select d.*, cast(null as number) as colA  from dual d;
DUMMY COLA
X    
/* Add a string column colA with random values*/
select d.*, dbms_random.string('A', 10) as colA  from dual d;
DUMMY COLA
X     QvKJWWdbTw