Все базы данных в одной репе

procedure.sql

@@ -0,0 +1,67 @@
+-- select 
+-- 	* 
+-- from 
+-- 	participant_request 
+-- where
+-- 	name = 'Дмитрий'
+-- 	and surname = 'Малышев'
+-- 	and id_competition = (
+-- 		select id_competition from competition where title = 'Мега кубок №36' limit 1
+-- 	)
+
+
+create or replace procedure create_participant_request(
+    p_name varchar(100),
+    p_surname varchar(100),
+    p_gender varchar(10),
+    p_competition_title varchar(100),
+    p_division_title varchar(100)
+)
+language plpgsql
+as $$
+declare
+    v_id_sportsman integer;
+    v_id_competition integer;
+    v_id_division integer;
+begin
+    -- проверка существования дивизиона
+    select id_division into v_id_division
+    from division
+    where title = p_division_title
+    limit 1;
+
+    if not found then
+        raise exception 'Дивизиона % не существует', p_division_title;
+    end if;
+
+    -- проверка существования соревнования
+    select id_competition into v_id_competition
+    from competition
+    where title = p_competition_title
+    limit 1;
+
+    -- если соревнование не существует, создать его
+    if not found then
+        insert into competition (title)
+        values (p_competition_title)
+        returning id_competition into v_id_competition;
+    end if;
+
+    -- проверка существования спортсмена
+    select id_sportsman into v_id_sportsman
+    from sportsman
+    where name = p_name and surname = p_surname and gender = p_gender
+    limit 1;
+
+    -- если спортсмен не существует, создать его
+    if not found then
+        insert into sportsman (name, surname, gender)
+        values (p_name, p_surname, p_gender)
+        returning id_sportsman into v_id_sportsman;
+    end if;
+
+    -- создание заявки участника
+    insert into participant_request (name, surname, gender, is_registered, id_competition, id_sportsman, id_division)
+    values (p_name, p_surname, p_gender, false, v_id_competition, v_id_sportsman, v_id_division);
+end;
+$$;