These statements are provided for use with SQL*Plus scripts that
    are run against Oracle Rdb.

    Table 1-5 Supported SQL*Plus SET statements

    SQL*Plus command       Equivalent Oracle Rdb statement

    SET ECHO ON            SET VERIFY
    SET ECHO OFF           SET NOVERIFY
    SET HEADING ON         SET DISPLAY QUERY HEADER
    SET HEADING OFF        SET DISPLAY NO QUERY HEADER
    SET FEEDBACK ON        SET DISPLAY ROW COUNTER
    SET FEEDBACK OFF       SET DISPLAY NO ROW COUNTER
    SET NULL               SET DISPLAY DEFAULT NULL STRING
    SET NULL 'literal'     SET DISPLAY NULL STRING 'literal'