進行批量插入 使用union all，批插帶序列插入

<!-- 批插帶序列使用了union all -->
    <insert id="insertDetailed" parameterType="java.util.List" useGeneratedKeys="false">
        insert into Detailed(
            id,
            DETAILNUMBER,
            payeebankname,
            payeebanknum,
            name,
            money,
            batchnumber,
            enterprisepipeliningnum,
            note,
            banknumber
        )
       select seq_detailed.nextval, A.*  from
 
(
       <foreach collection="list" item="item" index="index"
           separator="UNION ALL">
           SELECT
            #{item.detailnumber, jdbcType=VARCHAR},
            #{item.payeebankname, jdbcType=VARCHAR},
            #{item.payeebanknum, jdbcType=VARCHAR},
            #{item.name, jdbcType=VARCHAR},
 

            #{item.money, jdbcType=VARCHAR},
            #{item.batchnumber, jdbcType=VARCHAR},
            #{item.enterprisepipeliningnum, jdbcType=VARCHAR},
            #{item.note, jdbcType=VARCHAR},
            #{item.banknumber, jdbcType=VARCHAR}
           from dual
       </foreach>
       ) A
    </insert>
 

不使用 union all，批插不帶序列

<!-- 批插不帶序列 -->
    <!-- <insert id="insertDetailed" parameterType="java.util.List" useGeneratedKeys="false">
        INSERT ALL
        <foreach item="item" index="index" collection="list">
        INTO Detailed
        (
            DETAILNUMBER,
            payeebankname,
            payeebanknum,
            name,
            money,
            batchnumber,
            enterprisepipeliningnum,
            note,
            banknumber,
            status
        ) VALUES
        (
            #{item.detailnumber, jdbcType=VARCHAR},
            #{item.payeebankname, jdbcType=VARCHAR},
            #{item.payeebanknum, jdbcType=VARCHAR},
            #{item.name, jdbcType=VARCHAR},
            #{item.money, jdbcType=VARCHAR},
            #{item.batchnumber, jdbcType=VARCHAR},
            #{item.enterprisepipeliningnum, jdbcType=VARCHAR},
            #{item.note, jdbcType=VARCHAR},
            #{item.banknumber, jdbcType=VARCHAR},
            #{item.status, jdbcType=VARCHAR}
        )
        </foreach>
        SELECT 1 FROM DUAL
    </insert> -->

不使用union all的速度會快一些