摘要：
创建存储过程CREATE PROCEDURE productpricing(OUT pl DECIMAL(8,2),OUT ph DECIMAL(8,2),OUT pa DECIMAL(8,2))BEGIN SELECT Min(prod_price) INTO pl FROM products; SELECT Max(prod_price) INTO ph FROM products; SELECT Avg(prod_price) INTO pa FROM products;END;执行存储过程CALL productpricing(@pricelow,@pricehigh,@priceav 阅读全文