完成以下SQL语句的编写：

student表:

score 表：

查询student表的所有记录

Select * from student;

查询student表的第2条到4条记录

select * from student LIMIT 1,3;

从student表查询所有学生的学号（id）、姓名（name）和院系（department）的信息

Select id,name,departmen from student;

从student表中查询计算机系和英语系的学生的信息

mysql> Select * from student where departmen = "计算机系" or departmen ="英语系";

从student表中查询年龄1985~1990年份的学生信息

Select * from student between 1985 and 1990 ;

从student表中查询每个院系有多少人

Select department,count(*) from student group by department

从score表中查询每个科目的最高分

Select c_name,max(grade) from score group by c_name ;

查询李四的考试科目（c_name）和考试成绩（grade）

Select c_name,grade from score where stu_id in ( select id from student where name="李四");

用连接的方式查询所有学生的信息和考试信息

Select * from score,student;

计算每个学生的总成绩

Select st.name,sum(sc.grade) from score as sc,student as st where  st.id=sc.stu_id

 group by sc.stu_id;

计算每个考试科目的平均成绩

Select c_name,avg(grade) from score group by c_name ;

查询计算机成绩低于95的学生信息

Select * from student where id in (select stu_id from score where grade < 95);

将计算机考试成绩按从高到低进行排序

 Select * from score where c_name =  "计算机" order by grade desc;

查询姓张或者姓王的同学的姓名、院系和考试科目及成绩

 select st.name,st.department,sc.c_name,sc.grade  from student as st, score as sc  where st.id = sc.stu_id and name regexp "^[王|张]";

查询都是北京的学生的姓名、年龄、院系和考试科目及成绩

select st.name,st.department,sc.c_name,sc.grade  from student as st, score as sc  where st.id = sc.stu_id and  st.address regexp "^北京";