How To Create And Call A Stored Procedure With OUT Parameters In Postgre...

In this detailed tutorial, we delve into the process of creating and calling stored procedures with OUT parameters using the PL/pgSQL language in PostgreSQL. OUT parameters allow you to return multiple results from a stored procedure, making your database operations more efficient and versatile.

We start by guiding you through the syntax and structure needed to define a stored procedure with OUT parameters. You'll learn how to write a procedure that returns multiple values, which can be used to handle complex database tasks such as calculations, data transformations, or conditional operations.

Next, we demonstrate how to call the stored procedure and retrieve the OUT parameters' values. Through clear, step-by-step examples, you'll see how these procedures can be applied in real-world scenarios, helping you to streamline your database processes and reduce the complexity of your SQL queries.

We also cover best practices for managing and optimizing stored procedures in PostgreSQL, ensuring that your database operations are both effective and efficient. Whether you're a database administrator, developer, or just someone looking to enhance their PostgreSQL skills, this video provides valuable insights into advanced database management techniques.

PostgreSQL stored procedure, OUT parameters in PostgreSQL, PL/pgSQL stored procedure, create stored procedure PostgreSQL, call stored procedure PostgreSQL, PostgreSQL PL/pgSQL tutorial, SQL stored procedures, PostgreSQL OUT parameters, database management, PostgreSQL programming

create or replace procedure one_out_param_proc

(in_customer_name IN character varying,

 in_address_id IN numeric,

 out_payment_amount OUT numeric)

 Language 'plpgsql'

 AS $BODY$

 

 Declare

 Begin

  Select sum(amount) into out_payment_amount

From payment

where customer_id = (select customer_id from customer

where first_name = in_customer_name

and address_id = in_address_id);

exception

when others then

raise notice 'Something went wrong';

end;

$BODY$

select sum(amount) from payment where customer_id = 341;

select * from customer where customer_id = 341;

do $$

declare

v_payment_amount numeric(10,2);

begin

call one_out_param_proc ('Peter', 346, v_payment_amount);

raise notice 'Total Payment Amount is %',v_payment_amount;

end $$;