招银提前批SQL题

面试馆出的题很简单，奈何平时练的都是select，好久没用过update和delete了。

以面养面，继续总结！

题目：

建表：

DROP TABLE IF EXISTS employees;  
CREATE TABLE employees (  
     id int(4) primary key not null auto_increment,
     name varchar(255) NOT NULL, 
     s_x int(4) not null,
     s_y int(4) not null
   ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;   

INSERT INTO employees VALUES (1001,'张三', 3000, 5000); 
INSERT INTO employees VALUES (1002,'李四', 2000, 1000); 
INSERT INTO employees VALUES (1003,'张五', 4000, 1000); 

更新语句：update 表名 set 字段 = 新值 where 条件;

update employees set salary_x = 9000
where name='李四';

查询

select min(s_x + s_y) from employees;