Oracle SQL - SQL*Plus set command


The set command is a SQL*Plus command.

It is an instruction telling SQL*Plus how to act.

For instance, you can check the setting of feedback by typing

show feedback 

SQL*Plus will respond with the following:

FEEDBACK ON for 25 or more rows 

The width used to display numbers is changed by the set command. You check it by typing

show numwidth 

SQL*Plus will reply as shown here:

numwidth 10 

To shrink the display by typing

set numwidth 5 

Here, this means that all number columns will be five digits wide.