oracle、达梦、mysql insert返回id 新增返回自增序列\自增主键\自增id

注意：id的类型必须与实体User的id字段类型一致

Oracle、达梦

<insert id="insert" parameterType="com.xwy.entity.User">
        <selectKey order="BEFORE" keyColumn="id" keyProperty="id" resultType="int">
            select seq_user_id.nextVal from dual
        </selectKey>
        insert into user ( id,name) values (#{id},#{name})
</insert>

MySQL

<insert id="insert" keyColumn="id" keyProperty="id" useGeneratedKeys="true" parameterType="com.xwy.entity.User">
        insert into user ( id,name) values (#{id},#{name})
</insert>