SQL 同时显示总计、分组小计、和明细数据的统计查询 ，应用 SQL笛卡尔积 链接 、COUNT()函数 和 UNION
笛卡尔积应用例子：
同时显示总计、分组小计、和明细数据的统计查询
使用 笛卡尔积 防止 不同数据类型合并失败，省略进行数据转换的代码。
dbo.s_count 表是只有一个整数型字段（s_count.计数）和一行记录s_count.计数记录为 1 的表。
select '总计' , sum(iid) , 0 as 计数
from dbo.s_fielstype
UNION
select s_fielstype.cvfptype + '小计' , sum(iid) , COUNT(s_count.计数) as 计数
from dbo.s_fielstype , dbo.s_count
group by s_fielstype.cvfptype
UNION
select s_fielstype.csqltype , iid , s_count.计数 as 计数
from dbo.s_fielstype , dbo.s_count
例： 分组，小计，合计 ，明细 合并显示
select
'分组' as 标记, gd_jm.工资表编号 as 工资表编号, CONVERT(varchar(10), gd_jm.日期, 120) as 日期, gd_js.员工编号 as 员工编号, gd_js.姓名 as 姓名,sum(gd_js.数量) as 数量,sum(gd_js.金额) as 金额, count(*) as 计数, 0 as 显示顺序,'工资表编号+日期+员工编号+姓名 汇总' as 汇总标记, 15855596 as 行颜色
from gd_js left join gd_jm
on gd_js.计件单主表序号 = gd_jm.计件单主表序号
left join gm_ygml as v_gmygml
on gd_js.员工编号 = v_gmygml.员工编号
left join pm_bm
on v_gmygml.部门编号 = pm_bm.部门编号
left join gd_gzb
on gd_jm.工资表编号 = gd_gzb.工资表编号
left join gm_jml
on gd_js.工序编号 = gm_jml.工序编号
left join gm_ph
on gd_js.批号 = gm_ph.批号 where 1=1 and gd_jm.工资表编号 LIKE '%2019-10%' and v_gmygml.部门编号 LIKE '10%' group by gd_jm.工资表编号,gd_jm.日期,gd_js.员工编号,gd_js.姓名
UNION
-- DQ.1397
-- 2
--
select
'小计' as 标记, gd_jm.工资表编号 as 工资表编号, CONVERT(varchar(10), gd_jm.日期, 120) + ' 小计' as 日期, NULL as 员工编号, NULL as 姓名,sum(gd_js.数量) as 数量,sum(gd_js.金额) as 金额, count(*) as 计数, 2 as 显示顺序,'工资表编号+日期 小计' as 汇总标记, 14473423 as 行颜色
from gd_js left join gd_jm
on gd_js.计件单主表序号 = gd_jm.计件单主表序号
left join gm_ygml as v_gmygml
on gd_js.员工编号 = v_gmygml.员工编号
left join pm_bm
on v_gmygml.部门编号 = pm_bm.部门编号
left join gd_gzb
on gd_jm.工资表编号 = gd_gzb.工资表编号
left join gm_jml
on gd_js.工序编号 = gm_jml.工序编号
left join gm_ph
on gd_js.批号 = gm_ph.批号 where 1=1 and gd_jm.工资表编号 LIKE '%2019-10%' and v_gmygml.部门编号 LIKE '10%' group by gd_jm.工资表编号,gd_jm.日期
UNION
-- DQ.1397
-- 0
--
select
'合计' as 标记, '合计' as 工资表编号, NULL as 日期, NULL as 员工编号, NULL as 姓名,sum(gd_js.数量) as 数量,sum(gd_js.金额) as 金额, count(*) as 计数, 4 as 显示顺序, '合计' as 汇总标记, 11445392 as 行颜色
from gd_js left join gd_jm
on gd_js.计件单主表序号 = gd_jm.计件单主表序号
left join gm_ygml as v_gmygml
on gd_js.员工编号 = v_gmygml.员工编号
left join pm_bm
on v_gmygml.部门编号 = pm_bm.部门编号
left join gd_gzb
on gd_jm.工资表编号 = gd_gzb.工资表编号
left join gm_jml
on gd_js.工序编号 = gm_jml.工序编号
left join gm_ph
on gd_js.批号 = gm_ph.批号 where 1=1 and gd_jm.工资表编号 LIKE '%2019-10%' and v_gmygml.部门编号 LIKE '10%' UNION -- DQ.1397
-- 明细数据部份
select
'明细' as 标记, gd_jm.工资表编号 as 工资表编号, CONVERT(varchar(10), gd_jm.日期, 120) as 日期, gd_js.员工编号 as 员工编号, gd_js.姓名 as 姓名,gd_js.数量 as 数量,gd_js.金额 as 金额, convert ( Int , 1 ) as 计数, -1 as 显示顺序, '明细' as 汇总标记, 16438401 as 行颜色
from gd_js left join gd_jm
on gd_js.计件单主表序号 = gd_jm.计件单主表序号
left join gm_ygml as v_gmygml
on gd_js.员工编号 = v_gmygml.员工编号
left join pm_bm
on v_gmygml.部门编号 = pm_bm.部门编号
left join gd_gzb
on gd_jm.工资表编号 = gd_gzb.工资表编号
left join gm_jml
on gd_js.工序编号 = gm_jml.工序编号
left join gm_ph
on gd_js.批号 = gm_ph.批号 where 1=1 and gd_jm.工资表编号 LIKE '%2019-10%' and v_gmygml.部门编号 LIKE '10%'
order by 2,3,4,5