代码如下:
select vend_id from products where vend_id 1003
等同于
代码如下:
select vend_id from products where vend_id ！=1003
代码如下:
select prod_name，prod_price from products where prod_price between 5 and 10;
代码如下:
select * from products
where prod_price is null;
以上所述是小编给大家分享的mysql必知必会读书笔记第六章之过滤数据的相关内容，希望对大家有所帮助！