What are you programing with?.
are you using npgsql?

Regards Cesar Alvarez.
Hi everyone,

I would like to know how can i do a simple transaction for this situation:

I have n products in certain row of a table. When the user buys a product, the quantity of this product will be decreased. The user can only buy a product that has a quantity n > 0. This means that when the user send the product confirmation to the system, the bd will decrease the product quantity with a transaction if the number of product in stock is greater than zero.


Did anyone knows how can i do that with postgre?

Thanks a lot.

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fn:Cesar Alvarez
n:;Cesar Alvarez
title:Web Development Asesor and Software Enginner
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