create sequesce seq_test4;
create table test2(
tid number primary key,
tname varchar2(10)
);
Automatic growth
insert into test2 values(seq_test4.nextval,'张三');//nextval自动获取下一个主键的值
create sequesce seq_test4;
create table test2(
tid number primary key,
tname varchar2(10)
);
Automatic growth
insert into test2 values(seq_test4.nextval,'张三');//nextval自动获取下一个主键的值