sequence 作为序列插入值不是第一个
CREATE SEQUENCE seq_test
INCREMENT BY 1
START WITH 1 ;
创建表时 或执行 ALTER SYSTEM SET deferred_segment_creation=FALSE;
CREATE TABLE tbl_test( test_id NUMBER PRIMARY KEY, test_name VARCHAR2(20) )
SEGMENT CREATION IMMEDIATE;
insert into tbl_test values(seq_test.nextval,'abc')
select * from tbl_test