--查询表数据
SELECT * from STUDENT;
--删除表
drop table STUDENT ;--创建示例表 --
CREATE TABLE STUDENT(STU_ID number(9) not null,STU_NAME varchar2(20) not null,STU_MSG varchar2(50) null
)-- 创建序列  Student_stuId_Seq --create sequence Student_stuId_Seqincrement by 1start with 1minvalue 1maxvalue 999999999;-- 更改序列  Student_stuId_Seq--alter sequence Student_stuId_Seqincrement by 2  minvalue 1maxvalue 999999999;--获取序列自增ID --select Student_stuId_Seq.Nextval 自增序列ID from dual;-- 删除序列 -- drop sequence Student_stuId_Seq;--调用序列，插入Student数据 --insert into Student(stuId,Stuname) values(Student_stuId_Seq.Nextval,'张三');insert into Student(stuId,Stuname) values(Student_stuId_Seq.Nextval,'李四');--查询插入的数据 --select * from Student