Question

I’m using Oracle 10g XE edition via Application Express and NULLs are displayed using - character. I found from the parameter listing that:

+-------+-------+------------+--------------------------------------------+
| Name  | Value | Is Default |                Description                 |
+-------+-------+------------+--------------------------------------------+
| event | -     | TRUE       | debug event control - default null string  |
+-------+-------+------------+--------------------------------------------+

Is there a way to change this value so that NULLs are displayed NULL instead of -?

Answer 1

This is the default behaviour of reports created in Oracle Application Express (Apex).

You can change it to NULL or blank it out entirely by editing the Report Attributes – Show Null Values As.