Wynajem.sql Apr 2026

: Use CREATE TABLE IF NOT EXISTS or DROP TABLE IF EXISTS to ensure the script can be run multiple times without errors.

: Ensure foreign keys (e.g., klient_id , obiekt_id ) and frequently filtered columns (like data_wynajmu ) are properly indexed to speed up search queries. wynajem.sql

: Replace SELECT * with explicit column names. This reduces unnecessary data transfer and prevents issues if the table schema changes . : Use CREATE TABLE IF NOT EXISTS or

: For operations involving multiple updates (e.g., marking an item as "rented" while creating a billing record), wrap the logic in a BEGIN TRANSACTION and COMMIT to maintain data integrity. This reduces unnecessary data transfer and prevents issues

: Check for NOT NULL constraints on essential fields (dates, IDs) and CHECK constraints to ensure rental start dates are always before end dates. 2. Code Quality & Formatting

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