mysql数据过滤

1、AND操作符:

select 表的字段名 from 对应的表名 where 表的字段名 AND 表的字段名 运算符 值;

例子:select prod_id,prod_price,prod_name from products where ven_id = 1003 AND prod_price <= 10;

2、OR操作符:

select 表的字段名 from 对应的表名 where 表的字段名 运算符 值 OR 表的字段名 运算符 值;

例子:select prod_name,prod_price from products where vend_id = 1002 OR vend_id = 1003;

3、计算次序(AND有优先权限)

select prod_name,prod_price from products where (vend_id = 1002 OR vend_id = 1003) AND prod_price >= 10;

4、IN操作符:

select prod_name,prod_price from products where vend_id IN (1002,1003) order by prod_name;

5、NOT操作符:

select prod_name,prod_price from products where vend_id NOT IN (1002,1003) order by prod_name;

 

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