group by <iftest="projectId != null and projectIds == null"> project_name,</if><iftest="projectId == null and projectIds != null"> project_name,dept_name,</if>year(statistics_start),MONTH(statistics_start)
group by <iftest="projectId != null and projectIds == null"> project_name,</if><iftest="projectId == null and projectIds != null"> project_name,dept_name,</if>year(statistics_start),MONTH(statistics_start)
order by convert(project_name using gbk)
order by statistics_start, convert(project_name using gbk)