MYSQL必知必会读书笔记第六章之过滤数据_MySQL
- WBOYOriginal
- 2016-05-27 13:44:391100browse
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;
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