Changes between Version 20 and Version 21 of DatabaseProgramming
- Timestamp:
- 06/15/26 11:53:47 (2 days ago)
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DatabaseProgramming
v20 v21 653 653 BEGIN 654 654 655 -- земи тековна залиха655 656 656 SELECT quantity 657 657 INTO v_stock … … 659 659 WHERE product_id = NEW.product_id; 660 660 661 -- ако нема продукт661 662 662 IF NOT FOUND THEN 663 663 RAISE EXCEPTION 'Product % does not exist', NEW.product_id; 664 664 END IF; 665 665 666 -- ако нема доволно залиха666 667 667 IF v_stock < NEW.quantity THEN 668 668 RAISE EXCEPTION
