查找employees表员工信息
查找employees表emp_no与last_name的员工信息
https://www.nowcoder.com/practice/a32669eb1d1740e785f105fa22741d5c
select * from employees where last_name !='Mary' and emp_no%2 =1 order by hire_date desc;
select * from employees where last_name !='Mary' and emp_no%2 !=0 order by hire_date desc;
select * from employees where last_name !='Mary' and emp_no%2 !=0 order by hire_date desc;
select * from employees where last_name !='Mary' and emp_no%2 =1 order by hire_date desc;
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