create [or replace] function function_name(param_list)
returns return_type
language plpgsql
as $$
declare
-- variable declaration
begin
-- logic
end;
$$Create or replace Function public.my_function(p_el1 int, p_el2 int, p_name char)
Returns table (id int, price int)
language plpgsql
as
$$
declare
v_total int;
begin
-- insert into first table
insert into my_table1
(added_name)
values
(p_name);
-- Insert the result of a calculation in a variable
select (p_el1 + p_el2) into v_total;
-- Update a second table
update my_table2 mt
set
price = v_total
where
mt.name = p_name;
-- Return the result of a query
return query (select
mt.id,
mt.price
from
my_table2 mt
where
mt.name = p_name);
end;
$$
CREATE OR REPLACE FUNCTION auditlogfunc() RETURNS TRIGGER AS $example_table$
BEGIN
INSERT INTO AUDIT(EMP_ID, ENTRY_DATE) VALUES (new.ID, current_timestamp);
RETURN NEW;
END;
$example_table$ LANGUAGE plpgsql;postgres=# Create or replace function fun1(n int) returns int
as
$$
Begin
Insert into test values (n,'2019-11-26');
Return 1;
End;
$$
Language 'plpgsql';
CREATE FUNCTION
postgres=#