Oracle中没有自增的列,所以必须自己创建sequence,如下:
然后在hibernate中配置如下
不然就会报org.hibernate.exception.SQLGrammarException: could not get next sequence value的错误。
CREATE SEQUENCE id_sequence
INCREMENT BY 1
START WITH 1
NOMAXVALUE
NOCYCLE
CACHE 10;
然后在hibernate中配置如下
<id name="id" type="java.lang.Integer">
<column name="ID" />
<generator class="native">
<param name="sequence">id_sequence</param>
</generator>
</id>
不然就会报org.hibernate.exception.SQLGrammarException: could not get next sequence value的错误。