SQL为查询到的表数据，在最后一行添加合计

SELECT *FROM dbo.Student 
UNION ALL
SELECT ' ','总计',SUM(Stu_Age),'','','',SUM(en) FROM dbo.Student

SELECT *FROM dbo.Student 
UNION 
SELECT ' ','总计',SUM(Stu_Age),'','','',SUM(en) FROM dbo.Student