为提高效率，提问时请提供以下信息，问题描述清晰可优先响应。
【DM版本】:DM8
【操作系统】：centos7
【CPU】:X86
【问题描述】*：一样的数据，不知道为什么报错
Cause: dm.jdbc.driver.DMException: SQL语句为NULL或空值

    <insert id="insertBatch" parameterType="com.xmirror.xfuse.entity.project.ProjDemandRelationEntity" databaseId="dm">
        <foreach collection="list" item="item" separator=";">
            insert into "MYSQL"."PROJ_DEMAND_RELATION"
            <trim prefix="(" suffix=")" suffixOverrides=",">
                <if test="item.demandId != null">
                    "DEMAND_ID",
                </if>
                <if test="item.projectId != null">
                    "PROJECT_ID",
                </if>
                <if test="item.serial != null and item.serial != ''">
                    "SERIAL",
                </if>
                <if test="item.demand != null and item.demand != ''">
                    "DEMAND",
                </if>
                <if test="item.name != null and item.name != ''">
                    "NAME",
                </if>
                <if test="item.priority != null">
                    "PRIORITY",
                </if>
                <if test="item.label != null">
                    "LABEL",
                </if>
                <if test="item.verificationMode != null">
                    "VERIFICATION_MODE",
                </if>
                <if test="item.businessReviewStatus != null">
                    "BUSINESS_REVIEW_STATUS",
                </if>
                <if test="item.businessReviewComment != null and item.businessReviewComment != ''">
                    "BUSINESS_REVIEW_COMMENT",
                </if>
                <if test="item.technologyReviewStatus != null">
                    "TECHNOLOGY_REVIEW_STATUS",
                </if>
                <if test="item.technologyReviewComment != null and item.technologyReviewComment != ''">
                    "TECHNOLOGY_REVIEW_COMMENT",
                </if>
                <if test="item.testReviewStatus != null">
                    "TEST_REVIEW_STATUS",
                </if>
                <if test="item.testReviewComment != null and item.testReviewComment != ''">
                    "TEST_REVIEW_COMMENT",
                </if>
                <if test="item.safeReviewStatus != null">
                    "SAFE_REVIEW_STATUS",
                </if>
                <if test="item.safeReviewComment != null and item.safeReviewComment != ''">
                    "SAFE_REVIEW_COMMENT",
                </if>
                <if test="item.version != null and item.version != ''">
                    "VERSION",
                </if>
                <if test="item.businessSceneName != null and item.businessSceneName != ''">
                    "BUSINESS_SCENE_NAME",
                </if>
                <if test="item.associatedUsers != null and item.associatedUsers != ''">
                    "ASSOCIATED_USERS",
                </if>
                <if test="item.createDate != null">
                    "CREATE_DATE",
                </if>
                <if test="item.modifyDate != null">
                    "MODIFY_DATE",
                </if>
            </trim>
            values
            <trim prefix="(" suffix=")" suffixOverrides=",">
                <if test="item.demandId != null">
                    #{item.demandId},
                </if>
                <if test="item.projectId != null">
                    #{item.projectId},
                </if>
                <if test="item.serial != null and item.serial != ''">
                    #{item.serial},
                </if>
                <if test="item.demand != null and item.demand != ''">
                    #{item.demand},
                </if>
                <if test="item.name != null and item.name != ''">
                    #{item.name},
                </if>
                <if test="item.priority != null">
                    #{item.priority},
                </if>
                <if test="item.label != null">
                    #{item.label},
                </if>
                <if test="item.verificationMode != null">
                    #{item.verificationMode},
                </if>
                <if test="item.businessReviewStatus != null">
                    #{item.businessReviewStatus},
                </if>
                <if test="item.businessReviewComment != null and item.businessReviewComment != ''">
                    #{item.businessReviewComment},
                </if>
                <if test="item.technologyReviewStatus != null">
                    #{item.technologyReviewStatus},
                </if>
                <if test="item.technologyReviewComment != null and item.technologyReviewComment != ''">
                    #{item.technologyReviewComment},
                </if>
                <if test="item.testReviewStatus != null">
                    #{item.testReviewStatus},
                </if>
                <if test="item.testReviewComment != null and item.testReviewComment != ''">
                    #{item.testReviewComment},
                </if>
                <if test="item.safeReviewStatus != null">
                    #{item.safeReviewStatus},
                </if>
                <if test="item.safeReviewComment != null and item.safeReviewComment != ''">
                    #{item.safeReviewComment},
                </if>
                <if test="item.version != null and item.version != ''">
                    #{item.version},
                </if>
                <if test="item.businessSceneName != null and item.businessSceneName != ''">
                    #{item.businessSceneName},
                </if>
                <if test="item.associatedUsers != null and item.associatedUsers != ''">
                    #{item.associatedUsers},
                </if>
                <if test="item.createDate != null">
                    #{item.createDate},
                </if>
                <if test="item.modifyDate != null">
                    #{item.modifyDate},
                </if>
            </trim>
        </foreach>
    </insert>