Wynajem.sql Info

: 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.

: Use descriptive aliases for tables (e.g., FROM Wynajmy AS w ) instead of single letters to improve clarity in multi-table joins. 3. Performance & Optimization wynajem.sql

: 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 : For operations involving multiple updates (e