Syntax options:

    LIMIT CPU TIME | NO LIMIT CPU TIME

    LIMIT CPU TIME sets the maximum CPU time that can be used by the
    query compiler. The keyword DEFAULT indicates that no value is
    defined by this profile and is equivalent to NO LIMIT CPU TIME.

    If a numeric value or the keyword UNLIMITED is specified then
    this value will be used even when the SET QUERY LIMIT CPU TIME
    statement is present in the session, or when the logical name
    RDMS$BIND_QG_CPU_TIMEOUT is defined.

    NO LIMIT CPU TIME is the default. Units can be specified as
    seconds or minutes.