Oracle Database Developer Question:

SQL*Plus environment is controlled a big list of SQL*Plus system settings. You can change them by using the SET command as shown in the following list:

* SET AUTOCOMMIT OFF - Turns off the auto-commit feature.
* SET FEEDBACK OFF - Stops displaying the "27 rows selected." message at the end of the query output.
* SET HEADING OFF - Stops displaying the header line of the query output.
* SET LINESIZE 256 - Sets the number of characters per line when displaying the query output.
* SET NEWPAGE 2 - Sets 2 blank lines to be displayed on each page of the query output.
* SET NEWPAGE NONE - Sets for no blank lines to be displayed on each page of the query output.
* SET NULL 'null' - Asks SQL*Plus to display 'null' for columns that have null values in the query output.
* SET PAGESIZE 60 - Sets the number of lines per page when displaying the query output.
* SET TIMING ON - Asks SQL*Plus to display the command execution timing data.
* SET WRAP OFF - Turns off the wrapping feature when displaying query output.