Question

我该怎么做才是postgres SQL 我的下表给出了每组的所有帐户

account | groupName
1       | group1
2       | group1
2nyc    | group1
2lon    | group2
3       | group2
4       | group2

基于这些组，我需要获取帐户并将它们传递给另一个sql。我需要所有小组的结果。

到目前为止，我尝试过的是

WITH main_data AS (
SELECT 
    account, groupName  
FROM 
    accountMapping  
WHERE 
    groupName IS NOT NULL
GROUP BY account, groupName  

)
SELECT * FROM results_table where account in (SELECT account FROM main_data);

我需要它以便逻辑上这应该与执行此操作相同

SELECT * FROM results_table WHERE account in (1, 2,2nyc);
SELECT * FROM results_table WHERE account in (3, 4)

......等等

Answer 1

这是你想要的吗？

SELECT rt.*
FROM results_table 
WHERE rt.account IN (SELECT am.account
                     FROM accountMapping am
                     WHERE am.groupName = $groupName
                    );

Postgres返回分组结果并根据另一个查询中的组传递结果

1 个答案: