orcale id自增

Class.forName("oracle.jdbc.driver.OracleDriver");

conn = DriverManager.getConnection(

"jdbc:oracle:thin:@localhost:1521:orcl", "scott", "Admin518");
create sequence seq; //创建一个序列(默认从1开始)

drop sequence seq;

create table CTL(id number primary key,name varchar2(20));

insert into CTL values (seq.nextval,'zhangsan'); //id=1

insert into CTL values (seq.nextval,'lisi'); //id=2