oracle序列已经创建了。 现在我要插入的时候id为自动增长 ，insert的时候插入怎么写？

SQL> CREATE SEQUENCE test_sequence2

2 increment by 1 -- 每次递增1

3 start with 1 -- 从1开始

4 nomaxvalue -- 没有最大值

5 minvalue 1 -- 最小值=1

6 NOCYCLE; -- 不循环

Sequence created.

SQL> CREATE TABLE test_create_tab2 (

2 id INT,

3 val VARCHAR(10),

4 PRIMARY KEY (id)

5 );

Table created.

SQL> CREATE OR REPLACE TRIGGER BeforeTestCreate2Insert

2 BEFORE INSERT ON test_create_tab2

3 FOR EACH ROW

4 BEGIN

5 SELECT test_sequence2.nextval INTO :new.id FROM dual;

6 END;

7 /

Trigger created.

SQL> INSERT INTO test_create_tab2(val) VALUES ('NO id');

1 row created.

SQL> INSERT INTO test_create_tab2(id, val) VALUES (1, 'id no use');

1 row created.

SQL> SELECT * FROM test_create_tab2;

ID VAL

---------- --------------------

1 NO id 2 id no use