改如何修正： <select id="getCurrentTask" resultType="com.sottop.sokonmobile.sokonmobile.qingdao.entity.AsEmWorkOrderEntity"> SELECT asewo.code_s as code,asewo.order_type_s as orderType,asewo.equipment_name_s as equipmentName,asewo.executor_s as executor, asewo.plan_start_time_T as planStartTime,asewo.plan_finish_time_T as planFinishTime,asewo.tpm_key_s as tpmKey,asewo.shop_s as shop, asewo.line_S as line,asewo.actual_start_time_t as startTime,asewo.actual_finish_time_t as finishTime,asewo.executor_account_s as executorAccounts, asewo.source_type_s as sourceType,asewo.SOURCE_ORDER_S as sourceOrder,asewo.CREATION_TIME as creationTime FROM AT_AS_EM_Work_Order asewo WHERE to_char(asewo.plan_start_time_T,'yyyy_mm-dd hh24:mi') &lt;= to_char(plan_finish_time_T,'yyyy_mm_dd hh24:mi') AND asewo.ORDER_STATUS_S='创建' AND asewo.executor_s=#{executor} <if test="orderType!=null and orderType!=''"> AND asewo.order_type_s=#{orderType} </if> ORDER BY asewo.creation_time DESC Union All SELECT asewo.code_s as code,asewo.order_type_s as orderType,asewo.equipment_name_s as equipmentName,asewo.executor_s as executor, asewo.plan_start_time_T as planStartTime,asewo.plan_finish_time_T as planFinishTime,asewo.tpm_key_s as tpmKey,asewo.shop_s as shop, asewo.line_S as line,asewo.actual_start_time_t as startTime,asewo.actual_finish_time_t as finishTime,asewo.executor_account_s as executorAccounts, asewo.source_type_s as sourceType,asewo.SOURCE_ORDER_S as sourceOrder,asewo.CREATION_TIME as creationTime FROM AT_AS_EM_Work_Order asewo WHERE asewo.ORDER_STATUS_S='创建' AND asewo.executor_s=#{executor} <if test="orderType!=null and orderType!=''"> AND asewo.order_type_s=#{orderType} </if> ORDER BY asewo.creation_time DESC </select>

根据您提供的信息，似乎这个SQL语句存在一些问题，包括：

1. 在第一行的resultType中，应该使用全限定类名而非实体类名。

2. 在第6行的SQL语句中，应该使用小于等于（<=）而非HTML实体字符（&lt;=）。

3. 在第18行和第30行的ORDER BY子句中，应该使用ORDER BY asewo.creation_time DESC，而非ORDER BY creation_time DESC。因为创建时间（creation_time）是AT_AS_EM_Work_Order表中的列，需要使用别名asewo来引用。

修正后的SQL语句如下所示：

<select id="getCurrentTask" resultType="com.sottop.sokonmobile.sokonmobile.qingdao.entity.AsEmWorkOrderEntity">
    SELECT
        asewo.code_s as code,
        asewo.order_type_s as orderType,
        asewo.equipment_name_s as equipmentName,
        asewo.executor_s as executor,
        asewo.plan_start_time_T as planStartTime,
        asewo.plan_finish_time_T as planFinishTime,
        asewo.tpm_key_s as tpmKey,
        asewo.shop_s as shop,
        asewo.line_S as line,
        asewo.actual_start_time_t as startTime,
        asewo.actual_finish_time_t as finishTime,
        asewo.executor_account_s as executorAccounts,
        asewo.source_type_s as sourceType,
        asewo.SOURCE_ORDER_S as sourceOrder,
        asewo.CREATION_TIME as creationTime
    FROM AT_AS_EM_Work_Order asewo
    WHERE to_char(asewo.plan_start_time_T,'yyyy_mm-dd hh24:mi') <= to_char(asewo.plan_finish_time_T,'yyyy_mm_dd hh24:mi')
        AND asewo.ORDER_STATUS_S='创建'
        AND asewo.executor_s=#{executor}
        <if test="orderType!=null and orderType!=''">
            AND asewo.order_type_s=#{orderType}
        </if>
    ORDER BY asewo.creation_time DESC
    Union All
    SELECT
        asewo.code_s as code,
        asewo.order_type_s as orderType,
        asewo.equipment_name_s as equipmentName,
        asewo.executor_s as executor,
        asewo.plan_start_time_T as planStartTime,
        asewo.plan_finish_time_T as planFinishTime,
        asewo.tpm_key_s as tpmKey,
        asewo.shop_s as shop,
        asewo.line_S as line,
        asewo.actual_start_time_t as startTime,
        asewo.actual_finish_time_t as finishTime,
        asewo.executor_account_s as executorAccounts,
        asewo.source_type_s as sourceType,
        asewo.SOURCE_ORDER_S as sourceOrder,
        asewo.CREATION_TIME as creationTime
    FROM AT_AS_EM_Work_Order asewo
    WHERE asewo.ORDER_STATUS_S='创建'
        AND asewo.executor_s=#{executor}
        <if test="orderType!=null and orderType!=''">
            AND asewo.order_type_s=#{orderType}
        </if>
    ORDER BY asewo.creation_time DESC
</select>