oracle和mysql批量Merge对比

orm框架采用mybatis，本博客介绍一下批量合并merge用oracle和mysql来做的区别，

oracle merge合并更新函数的详细介绍可以参考我以前的博客

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       <!-- 批量更新新增关联信息 oracle-->
       
       
  <insert id="batchSaveTipsRelatedConfig" databaseId="oracle" parameterType="com.extend.tipsConfig.model.TipsRelatedModel">
       
       
    MERGE INTO t_tips_config_related A1 
       
       
    USING(<foreach collection="relatedTipsList" item="itm" separator="union">select #{itm.seq} seq ,
       
       
           #{itm.tipsSeq} tipsSeq , 
       
       
           #{itm.relaSeq} relaSeq,
       
       
           #{itm.tipsContent} tipsContent
       
       
              from dual
       
       
      </foreach>) A2
       
       
    ON(A1.tips_seq = A2.tipsSeq and A1.rela_seq = A2.relaSeq)
       
       
    WHEN MATCHED THEN
       
       
    UPDATE SET
       
       
            A1.tips_content = A2.tipsContent
       
       
    WHEN NOT MATCHED THEN
       
       
    INSERT(seq , tips_seq ,  rela_seq, tips_content)
       
       
    VALUES(A2.seq , A2.tipsSeq ,A2.relaSeq, A2.tipsContent)
       
       
  </insert>
      
      
      
      

       
       
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mysql方法：

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       <!-- 批量更新新增关联信息 mysql-->
       
       
  <insert id="batchSaveTipsRelatedConfig" databaseId="mysql" parameterType="com.extend.tipsConfig.model.TipsRelatedModel">
       
       
    REPLACE INTO t_tips_config_related(seq,tips_seq,rela_seq,tips_content)  
       
       
    VALUES<foreach collection="relatedTipsList" item="itm" separator=",">(#{itm.seq},
       
       
           #{itm.tipsSeq}, 
       
       
           #{itm.relaSeq},
       
       
           #{itm.tipsContent})</foreach>
       
       
  </insert>
      
      
      
      

       
       
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