选择一个可以查询,多选就报错select t.number2 任务编号, t.task_level 任务级别, t.Subordinate_system 所属体系, t.department 所属部门, t.content_task 任务内容, t.planned_deliverables 拟交付物, t.those_responsible 责任人, t.completion_date 计划完成时间, t.task_create_day 任务下达时间, t.task_person 任务指派人, t.task_reply_added 任务回复新增人, t.tasks_reporting_day 上报任务时间, t.tasks_reporting_day1 上报任务时间时分秒from ( SELECT number2, task_level, Subordinate_system, department, content_task, planned_deliverables , those_responsible, completion_date, task_create_day, task_person, task_reply_added, tasks_reporting_day, tasks_reporting_day1, row_number() over (partition by number2 order by tasks_reporting_day1 desc) rn FROM "NEW_REPORT"."TASK_MAINTENANCE1" ) twhere t.rn<=1 ${if(len(任务级别)==0,"","and t.task_level in ('"+任务级别+"')")}