sql查詢以獲取具有多個條件的數據

Question

表 ta 具有三列

A | B | C
1 |11| 0
1 |12| 0
1 |13| 0
2 |33| 5
2 |34| 10
2 |35| 78
5 |45| 0
5 |49| 0
5 |51| 0
8 |10| 0
8 |14| -1
8 |34| -2

我正在尋找 SQL 查詢來獲取不同的 A 值，該值對於所有 B 都具有 C 值零。 （即輸出將是 1 & 5）

Answer 1

您可以使用group by並having ：

select a
from t
group by a
having min(c) = 0 and max(c) = 0;

Answer 2

您可以檢查 C 的平均值，如果它為 0，則 B 的所有 C 值都為零，

SELECT A 
FROM table
GROUP BY A
HAVING SUM(ABS(C))=0

Answer 3

試試這個：

select distinct A from [dbo].[table] where A not in ( select A from [dbo].[table] where C <> 0)

Answer 4

你可以做 ：

select t.*
from table t
where t.c = 0 and
      not exists (select 1 from #tm t1 where t1.a = t.a and t1.c < 0) 

Answer 5

NOT EXISTS ：

select distinct a from tablename t
where not exists (
  select 1 from tablename 
  where 
    a = t.a
    and
    c <> 0
)

Answer 6

嘗試這個 ：

 Select 
 A
 from #tmp
 group by A 
 Having 
 count(*)=count(case when c=0 then 0 else null end)

Answer 7

對於 SQL Server：

SELECT A FROM ta
EXCEPT
SELECT A FROM ta WHERE C <> 0