select 姓名,学历 from zgqk where 性别='男'
select * from zgqk where 专业 in (‘工商系’,‘会计系’)
select 职工编号,姓名 from zgqk where 入职时间 like'1993%'
select 部门 from zgqk where 学历='教授'
select 职称,count(职称) from zgqk group by 职称
select 姓名,出生日期 from zgqk where 学历 in ("教授","副教授")
select * from zgqk where 专业 in (‘经济系’,‘国经系’)
select 职工编号,姓名,工作日期 from zgqk where 年龄 > 30
select 部门 from zgqk where 学历='研究生'