Wynajem.sql ✔ [ Limited ]

: Ensure that currency fields (e.g., cena , kaucja ) use precise types like DECIMAL or NUMERIC rather than floating-point types to avoid rounding errors.

: Verify that the rental data is normalized (e.g., separate tables for Klienci (Customers), Obiekty (Properties/Items), and Wynajmy (Rentals)). Ensure there is no redundant storage of rental rates in the transaction table if they can be retrieved via a JOIN from the primary item table . wynajem.sql

: Use CREATE TABLE IF NOT EXISTS or DROP TABLE IF EXISTS to ensure the script can be run multiple times without errors. : Ensure that currency fields (e

: Ensure foreign keys (e.g., klient_id , obiekt_id ) and frequently filtered columns (like data_wynajmu ) are properly indexed to speed up search queries. : Use CREATE TABLE IF NOT EXISTS or

This review evaluates the script for schema integrity, query efficiency, and adherence to SQL development standards .

: Replace SELECT * with explicit column names. This reduces unnecessary data transfer and prevents issues if the table schema changes .