‘壹’ sql按条件汇总求和
如下：
1、第一步，将示例表导入SQL语句中，见下图，转到下面的步骤。
‘贰’ SQL 求和语句
select
sum(*)
from
(SELECT
SUM(zy_detail_charge.charge_amount)
FROM
zy_detail_charge
where
zy_detail_charge.charge_code
in
(select
fee_code
from
or_level
where
or_level
=
'xt'
and
flag
=
'410')
and
data_month
='2010-08'
union
all
SELECT
SUM(mz_charge_detail.quantity)
from
mz_charge_detail
where
mz_charge_detail.charge_item_code
in
(select
fee_code
from
or_level
where
or_level
=
'xt'
and
flag
=
'410'))
‘叁’ sql 求和的语句
select sum(a.a) from
(
SELECT
SUM(zy_detail_charge.charge_amount) FROM zy_detail_charge where
zy_detail_charge.charge_code in (select fee_code from or_level where
or_level = 'xt' and flag = '410')and data_month ='2010-08'
union all
SELECT
SUM(mz_charge_detail.quantity) from mz_charge_detail where
mz_charge_detail.charge_item_code in (select fee_code from or_level
where or_level = 'xt' and flag = '410')and data_month ='2010-08'
) a(a)
‘肆’ SQL里边的求和语句怎么写
SQL中求和语句分为纵向汇总和横向汇总语句；
假设数据列为：A、B、C、D、E、F、G
纵向汇总语句：
select sum(A),sum(B),sum(C),sum(D),sum(E),sum(F),sum(G) from 表名
横向汇总的SQL语句是：
select A,B,C,D,E,F,G,A+B+C+D+E+F+G from 表名
求所有数据总和的SQL语句是：
select sum(A)+sum(B)+sum(C)+sum(D)+sum(E)+sum(F)+sum(G) from 表名
(4)sql求和语句扩展阅读：
SQL是一种查询功能很强的语言，只要是数据库存在的数据，总能通过适当的方法将它从数据库中查找出来。SQL中的查询语句只有一个：SELECT，它可与其它语句配合完成所有的查询功能。SELECT语句的完整语法，可以有6个子句。完整的语法如下：
SELECT 目标表的列名或列表达式集合
FROM 基本表或(和)视图集合
〔WHERE条件表达式〕
〔GROUP BY列名集合
〔HAVING组条件表达式〕〕
〔ORDER BY列名〔集合〕…〕
‘伍’ sql语句列求和
select sum(数据1)，sum(数据2) from table
如果表里只有这两列，则语句如上，如果还有其它列并且需要分组，则添加group by语句，如:
select sum(数据1)，sum(数据2) from table
group by 其它列
‘陆’ SQL语句求和查询
select A字段,B字段,C字段,sum(D*E) as 新列,sum(F字段) as F字段,sum(G字段) as G字段 from 表 where H字段>='2015-03-01' and H字段<='2015-03-31' group by A字段,B字段,C字段
‘柒’ SQL里边的求和语句怎么写
用select sum(列名),sum(列名),sum(列名)…… from 表 where 条件。
‘捌’ sql求和这个语句怎么写
select t1.d,(case when t1.a='20190101' then t1.f else 0 end)f,
(case when t1.a='20190102' then t1.f else 0 end)g,
(case when t1.a='20190103' then t1.f else 0 end)h,
from(select a,b,sum(c)as f from table group by a,b)t1
‘玖’ SQL求和表达语句怎么写
Select sum(anzhuang) from client
这就是一个求和语句啊
‘拾’ 求一求和sql语句
如果是学号唯一的：
select min(编号),学号,min(姓名),sum(成绩) as '总成绩' from 成绩表 group by 学号
如果是姓名唯一的：
select min(编号),min(学号),姓名,sum(成绩) as '总成绩' from 成绩表 group by 姓名