=

= or -eq

>=

>= or -ge

>

> or -gt

!= or <> or ^=

<>

IN

LOOKUP or CAN-DO functions

LIKE

MATCHES

NULL

v_name := NULL ;

? (Unkown value)

v_name = ?.

v_name := v_first || ‘ ‘ || v_last ;

v_name = v_first + ‘ ‘ + v_last.