以下是SQL语句的基本操作
1、创建数据库表
/*创建学生表*/ create table tb_student( Sno nvarchar(50) not null, Sname nvarchar(30) not null, Ssex nvarchar(10), Sage int, Sclass nvarchar(30), constraint pk_sno primary key clustered(Sno) )2、插入数据
/*插入学生*/ insert into tb_student values ('001','张静','女',20,'一班'); insert into tb_student values ('002','王伟','男',19,'二班'); insert into tb_student values ('003','张三','男',18,'二班');3、更新数据
/*更新学号为001班级为二班*/ update tb_student set Sclass = '二班' where Sno = '001'4、删除数据
/*删除学号为003的学生*/ delete from tb_student where Sno = '003'5、查询数据
/*查询学生表所有数据*/ select * from tb_student
