申請加入兩個結果集 - Postgres的

Question

我有查詢，讓我documentid

select documentid from tbldocumentbyclient 
where tbldocumentbyclient.isactive = true 
and applicationid = '000116' 

結果：

另一個查詢給我下面的結果

SELECT documentcategory,documentcategoryid, string_agg(documentid::text, ',') as documentid 
         FROM tbldocumentmaster 
         where accounttype = 1 and usertype= 'INDIVIDUAL' 
         group by documentcategory,documentcategoryid 
         order by documentcategoryid; 

結果：

現在，可有人請建議我怎麼去不與任何documentid

對於以上情況，我的結果應該是繼相關類別名稱。

1. DP證明 - 134在第一個結果不可用
2. 住址證明永久 - 排4 ..不是一個單一的ID提供documenid導致

這裏這是不與關聯的documentcategory任何文件ID

Answer 1

我覺得你的兩個表應該做的伎倆之間的簡單連接。這裏的邏輯是，如果從tbldocumentmaster文檔類別真的有符合其中任何在tbldocumentbyclient表則連接應該將其過濾掉，留下那些做比賽類別背後沒有文檔ID。

SELECT t1.documentcategory 
FROM tbldocumentmaster t1 
LEFT JOIN tbldocumentbyclient t2 
    ON t1.documentid = t2.documentid 
WHERE t2.isactive = true   AND 
     t2.applicationid = '000116' AND 
     t1.accounttype = 1   AND 
     t1.usertype = 'INDIVIDUAL' AND 
     t2.documentid IS NULL 

Answer 2

試試這個：

SELECT distinct documentcategory,documentcategoryid 
FROM tbldocumentmaster m 
LEFT OUTER JOIN tbldocumentbyclient d on d.documentid = m.documentid 
where accounttype = 1 and usertype= 'INDIVIDUAL' 
and m.documentid is null 
and applicationid = '000116' 
group by documentcategory,documentcategoryid 
order by documentcategoryid; 

Answer 3

我沒有測試過，但你可以嘗試此查詢：？

SELECT documentcategory,documentcategoryid, string_agg(documentid::text, ',') as documentid 
         FROM tbldocumentmaster 
         where accounttype = 1 and usertype= 'INDIVIDUAL' and documentid not in (select documentid from tbldocumentbyclient where tbldocumentbyclient.isactive = true and applicationid = '000116') 
         group by documentcategory,documentcategoryid 
         order by documentcategoryid;