sql求和語句
① 求一求和sql語句
如果是學號唯一的:
select min(編號),學號,min(姓名),sum(成績) as '總成績' from 成績表 group by 學號
如果是姓名唯一的:
select min(編號),min(學號),姓名,sum(成績) as '總成績' from 成績表 group by 姓名
② SQL求和表達語句怎麼寫
Select sum(anzhuang) from client
這就是一個求和語句啊
③ SQL里邊的求和語句怎麼寫
用select sum(列名),sum(列名),sum(列名)…… from 表 where 條件。
④ sql語句列求和
select sum(數據1),sum(數據2) from table
如果表裡只有這兩列,則語句如上,如果還有其它列並且需要分組,則添加group by語句,如:
select sum(數據1),sum(數據2) from table
group by 其它列
⑤ sql求和這個語句怎麼寫
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
⑥ SQL 求和語句
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'))
⑦ SQL里邊的求和語句怎麼寫
SQL中求和語句分為縱向匯總和橫向匯總語句;
假設數據列為:A、B、C、D、E、F、G
縱向匯總語句:
select sum(A),sum(B),sum(C),sum(D),sum(E),sum(F),sum(G) from 表名
橫向匯總的SQL語句是:
select A,B,C,D,E,F,G,A+B+C+D+E+F+G from 表名
求所有數據總和的SQL語句是:
select sum(A)+sum(B)+sum(C)+sum(D)+sum(E)+sum(F)+sum(G) from 表名
(7)sql求和語句擴展閱讀:
SQL是一種查詢功能很強的語言,只要是資料庫存在的數據,總能通過適當的方法將它從資料庫中查找出來。SQL中的查詢語句只有一個:SELECT,它可與其它語句配合完成所有的查詢功能。SELECT語句的完整語法,可以有6個子句。完整的語法如下:
SELECT 目標表的列名或列表達式集合
FROM 基本表或(和)視圖集合
〔WHERE條件表達式〕
〔GROUP BY列名集合
〔HAVING組條件表達式〕〕
〔ORDER BY列名〔集合〕…〕
⑧ sql 求和的語句
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)
⑨ SQL按條件匯總求和
如下:
1、第一步,將示例表導入SQL語句中,見下圖,轉到下面的步驟。
⑩ SQL語句求和查詢
select A欄位,B欄位,C欄位,sum(D*E) as 新列,sum(F欄位) as F欄位,sum(G欄位) as G欄位 from 表 where H欄位>='2015-03-01' and H欄位<='2015-03-31' group by A欄位,B欄位,C欄位