sql在没有条件的情况下连接两个单元格

在SSMS中，当我运行

      select 1 as A, 2 as B

select avg(column1) from table1 where company like '%3m%'and Column2!=0

select avg(column3) from table1 where company like '%3m%'and Column4!=0

我得到一张一行两格的桌子

当我跑的时候

      select 1 as A, 2 as B

select avg(column1) from table1 where company like '%3m%'and Column2!=0

select avg(column3) from table1 where company like '%3m%'and Column4!=0

我得到一个数字x

当我跑的时候

      select 1 as A, 2 as B

select avg(column1) from table1 where company like '%3m%'and Column2!=0

select avg(column3) from table1 where company like '%3m%'and Column4!=0

我得到另一个数字y

我想知道如何使用单个查询将x和y放在一个单行表中

谢谢你的建议

试试这个：

SELECT 
    (SELECT AVG(column1) FROM table1 WHERE company LIKE '%3m%'and Column2!=0) AS A,
    (SELECT AVG(column3) FROM table1 WHERE company LIKE '%3m%'and Column4!=0) AS B

SELECT 
    AVG(CASE WHEN Column2 !=0 THEN Column1 END) AS A,
    AVG(CASE WHEN Column4 !=0 THEN Column3 END) AS B
FROM Table1
WHERE Company LIKE '%3m%' AND (Column2!=0 OR Column4 !=0)

试试这个：

SELECT 
    AVG(CASE WHEN Column2 !=0 THEN Column1 END) AS A,
    AVG(CASE WHEN Column4 !=0 THEN Column3 END) AS B
FROM Table1
WHERE Company LIKE '%3m%' AND (Column2!=0 OR Column4 !=0)

试试这个：

SELECT 
    AVG(CASE WHEN Column2 !=0 THEN Column1 END) AS A,
    AVG(CASE WHEN Column4 !=0 THEN Column3 END) AS B
FROM Table1
WHERE Company LIKE '%3m%' AND (Column2!=0 OR Column4 !=0)

试试这个：

SELECT 
    AVG(CASE WHEN Column2 !=0 THEN Column1 END) AS A,
    AVG(CASE WHEN Column4 !=0 THEN Column3 END) AS B
FROM Table1
WHERE Company LIKE '%3m%' AND (Column2!=0 OR Column4 !=0)

是的，你可以

SELECT avg(case when Column2!=0 then column1 else NULL end)
     , avg(case when Column4!=0 then column3 else NULL end)
FROM   table1
WHERE  company LIKE '%3m%'

是的，你可以

SELECT avg(case when Column2!=0 then column1 else NULL end)
     , avg(case when Column4!=0 then column3 else NULL end)
FROM   table1
WHERE  company LIKE '%3m%'

是的，你可以

SELECT avg(case when Column2!=0 then column1 else NULL end)
     , avg(case when Column4!=0 then column3 else NULL end)
FROM   table1
WHERE  company LIKE '%3m%'

是的，你可以

SELECT avg(case when Column2!=0 then column1 else NULL end)
     , avg(case when Column4!=0 then column3 else NULL end)
FROM   table1
WHERE  company LIKE '%3m%'

---

当执行

select

语句时，将得到一个结果集，而不是一个表。对于您的问题，您可以尝试使用

case

函数构造一个合适的判别函数，如下所示：

select avg(case when column2 != 0 then column1 else null end) as col1_average ,
       avg(case when column4 != 0 then column3 else null end) as col3_average
from table1
where company like '%3m%'

---

当执行

select

语句时，将得到一个结果集，而不是一个表。对于您的问题，您可以尝试使用

case

函数构造一个合适的判别函数，如下所示：

select avg(case when column2 != 0 then column1 else null end) as col1_average ,
       avg(case when column4 != 0 then column3 else null end) as col3_average
from table1
where company like '%3m%'

---

当执行

select

语句时，将得到一个结果集，而不是一个表。对于您的问题，您可以尝试使用

case

函数构造一个合适的判别函数，如下所示：

select avg(case when column2 != 0 then column1 else null end) as col1_average ,
       avg(case when column4 != 0 then column3 else null end) as col3_average
from table1
where company like '%3m%'

---

当执行

select

语句时，将得到一个结果集，而不是一个表。对于您的问题，您可以尝试使用

case

函数构造一个合适的判别函数，如下所示：

select avg(case when column2 != 0 then column1 else null end) as col1_average ,
       avg(case when column4 != 0 then column3 else null end) as col3_average
from table1
where company like '%3m%'

---

非常感谢。那很简单，很快！非常感谢。那很简单，很快！非常感谢。那很简单，很快！非常感谢。那很简单，很快！