oracle mybatis批量insert

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oralce 批量insert的语句格式:

insert into table_name (
 col_1,col_2)
 (
 select param,param1 from dual
 union all
 select param,param1 from dual
 )

xml文件中实现方式:

<insert id="insertScoreByBatch" parameterType ="java.util.List" >
		INSERT INTO TABLE_NAME(
			
			ext_col,
			ext_col1,
			ext_col2,
			ext_col3,
			ext_col4
		) 
		(
		<foreach collection="list" item="evaScore" index="" separator="union all">
			select 
			
			#{evaScore.extCol},
			#{evaScore.extCol1},
			#{evaScore.extCol2},
			#{evaScore.extCol3},
			#{evaScore.extCol4}
		 from dual
		</foreach>
		)
	
	</insert>

注意:在oracle中不能以用下面的方式实现批量insert，否则会报语法错误

 insert into table_name(col_1,col_2) values(param,param1),(param,param1)