Question

select * from Table1
where Condition 1
union 
select select * from Table1
where Condition 2

结果：

NAME    AMOUNT    TYPE   
ABC      --       Account
ABC      200        --

但我需要将结果放在一行，如

NAME     AMOUNT     TYPE
ABC       200       ACCOUNT

如何做PG？

Answer 1

根据您的样本数据，这可能有效

SELECT name,
       MAX(amount) amount,
       MAX(type) type
  FROM table1
 WHERE condition 1
    OR condition 2
 GROUP BY name

Answer 2

我通过以下方式实现了类似的目标：

select TABLE_1.DESCRIPTION_COLUMN,

(array(select TABLE_2.INFO_COLUMN from TABLE_2 where TABLE_1.ID = TABLE_2.ID_TABLE_1))[1],
(array(select TABLE_2.INFO_COLUMN from TABLE_2 where TABLE_1.ID = TABLE_2.ID_TABLE_1))[2]

from TABLE_1


WHERE TABLE_1 = 1

来源/帮助：

https://stackoverflow.com/a/6402163/1856745

POSTGRESQL中同一行中的两个结果

2 个答案: