returnere enkelt række i lagret procedure på oracle

Du skal vælge et bestemt felt for at indsætte resultatet, hvis du skal bruge det sådan.

declare or replace procedure select_row 
(
    bookingid in integer,
    result out varchar2
) as 
begin
    select booking_name into result from booking where booking.id = bookingid;
end;

Ellers skal du først oprette en objekttype og vælge flere felter i objekttypen og returnere den. Du skal CREATE OBJECT eller CREATE RECORD.

CREATE OBJECT BOOKING_OBJ AS (
     bookingid INTEGER
    ,booking_name VARCHAR2(128)
);

declare or replace procedure select_row 
(
    bookingid in integer,
    result out BOOKING_OBJ
) as 
begin
    select booking_obj(bookingid, booking_name) into result from booking where booking.id = bookingid;
end;

Eller...

CREATE TYPE BOOKING_REC as record(
    bookingid integer,
    booking_name varchar2(100)
);

declare or replace procedure select_row 
(
    bookingid in integer,
    result out BOOKING_REC
) as 
begin
    select bookingid, booking_name into result from booking where booking.id = bookingid;
end;

Alternativt kan du returnere en ref-markør.