用同樣的條件寫同一個多查詢查詢條件相同的表

select column1,column2,column3 from table1 where column5=0 and column6=0 
select column1,column2,column3 from table1 where column5!=0 and column6!=0

這些是從同一個table1讀取數據的兩條sql語句。有沒有辦法編寫一個返回相同數據的查詢？用同樣的條件寫同一個多查詢查詢條件相同的表

我想單個查詢中的（column5 = 0 AND column6 = 0）和（column5！= 0 AND column6！= 0）的單獨結果。

as example: 
select column1 as c1,column2 as c2,column3 as c3 from table1 where column5=0 and column6=0 
union 
select column1 as c1_,column2 as c2_,column3 as c3_ from table1 where column5!=0 and column6!=0

來源

2011-10-22 salma

好吧，但你有什麼問題嗎？ – 2011-10-22 07:07:30

我想寫上述要求一個查詢 – salma 2011-10-22 07:23:14

您應該提供一些示例：第一個查詢的結果，第二個查詢的結果和預期的單個查詢的結果。 – palacsint 2011-10-24 05:35:06

select 
sum(
case when (column5=0 or column6=0) 
then 1 else 0 end 
    ) as c1 , 

sum(
case when (column5=0 or column6=0) 
then 1 else 0 end 
    ) as c2 , 
sum(
case when (column5=0 or column6=0) 
then 1 else 0 end 
) as c3 , 

sum(
case when (column5!=0 or column6!=0) 
then 1 else 0 end 
) as c1_ , 

    sum(
case when (column5!=0 or column6!=0) 
then 1 else 0 end 
) as c2_ , 
sum(
case when (column5!=0 or column6!=0) 
then 1 else 0 end 
    ) as c3_ , 

from table1

來源

2011-10-24 09:56:25 salma

如果你想獲得的所有結果從一個結果集這兩個查詢回來，你可以使用UNION像這樣：

select column1,column2,column3 from table1 where column5=0 and column6=0 
union 
select column1,column2,column3 from table1 where column5!=0 and column6!=0

來源

2011-10-22 09:09:45 imm

SELECT column1, column2, column3 
FROM table1 
WHERE (column5 = 0 AND column6 = 0) OR (column5 != 0 AND column6 != 0)

來源

2011-10-22 09:11:43 palacsint

我想在單個查詢（column5 = 0和column6 = 0）和（column5！= 0和column6！= 0）個人結果。 – salma 2011-10-23 12:04:50

你試過這個查詢的輸出嗎？ – 2011-10-23 12:19:24

如上文所提到的其他人可以使用聯盟。爲了確定哪些記錄來自哪個查詢你會做這樣的：

select 'query1', column1,column2,column3 from table1 where column5=0 and column6=0 
union 
select 'query2', column1,column2,column3 from table1 where column5!=0 and column6!=0

然後在您的記錄處理，您可以檢查的第一個值，並決定如何處理剩下的事情。

來源

2011-10-22 09:21:07 DaveRlz

SELECT column1,column2,column3 from table1 where (column5=0 and column6=0) or (column5!=0 and column6!=0)

來源

2011-10-22 09:23:26

如果我理解正確，你想保持結果的兩個部分分開。爲此添加ORDER BY子句。

SELECT column1, column2, column3 
FROM table1 
WHERE (column5 = 0 AND column6 = 0) 
    OR (column5 != 0 AND column6 != 0) 
ORDER BY (column5 = 0) DESC -- it's enough to include one column in this case.

如果你也希望能夠告訴他們分開，添加象徵着原點的另一列：

SELECT (column5 = 0) AS first_part, column1, column2, column3 
FROM table1 
WHERE (column5 = 0 AND column6 = 0) 
    OR (column5 != 0 AND column6 != 0) 
ORDER BY 1 DESC;

來源

2011-10-23 12:23:44

用同樣的條件寫同一個多查詢查詢條件相同的表

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