摘要: -- 过滤数据 SELECT prod_name,prod_price FROM Products WHERE prod_price = 3.49; -- WHERE子句操作符 SELECT prod_name,prod_price FROM Products WHERE prod_price 10; SELECT prod_name,prod_price FROM Products W... 阅读全文
posted @ 2019-04-19 15:53 伯言l 阅读(124) 评论(0) 推荐(0) 编辑