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From: Pavel Stehule <[email protected]>
To: Simon Connah <[email protected]>
Cc: [email protected]
Subject: Re: Stored procedures or raw queries
Date: Wed, 6 Aug 2025 14:11:43 +0200
Message-ID: <CAFj8pRCoY2KF3fFMCyR+PpALmaKfq+0pNFhhMUY5cRgzuzAXCw@mail.gmail.com> (raw)
In-Reply-To: <CAAxq4K1ekV9d3RA-qw2qS1cjBbOhF+4Vhf4BO_YPF0zKBeWH8w@mail.gmail.com>
References: <CAAxq4K1ekV9d3RA-qw2qS1cjBbOhF+4Vhf4BO_YPF0zKBeWH8w@mail.gmail.com>

Hi

st 6. 8. 2025 v 14:04 odesílatel Simon Connah <[email protected]> napsal:

> Hi,
>
> I'm pretty new to PostgreSQL and am building a simple website with it.
>
> My main question is whether I should use stored procedures / functions
> or whether I should embed raw SQL queries in my backend? I understand
> that procedures are faster as it cuts down on the round trip speed and
> the database can optimise it better.
>
> On the other hand raw SQL is much easier to manage as you just change
> the query in your bankend code without having to apply changes to the
> database at deployment time of your backend.
>
> What is considered the best approach? My backend is written in Go if
> that makes a difference.
>

The query executed from the stored procedure is executed with almost the
same speed as the query executed from the application.

There can be a small benefit from cached plans, but you can cache plans too
from application.

The sense of stored procedures is in possibility

a) an reduce a necessity to transfer data from server to client, the
network communication can be reduced

b) with security definer function you can implement some very strong
security solution

c) with stored procedures you can implement your own rules related to data
integrity and security. Stored procedures are executed on the server. There
is no way this can be bypassed.

Just for performance of queries there is not any benefit for stored
procedures

Regards

Pavel



>
> If you need any additional information then please let me know.
>
> Simon.
>
>
>

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