Question

有这样的表

Table "checklist"
idCardno
name
permAddress
datetime

Table "persons"
name
idcardno
photo

现在我想要我的sqlquery

idCardno    |  name    | permAddress   | photo   
-----------------------------------------------
A123456     | John Doe | 302 xyz       | 1.gif

照片应该是idcardno的相应照片。

我怎样才能达到这样的结果？我的SQL查询是什么？感谢

Answer 1

select checklist.idCardno as idCardno, checklist.name as name, permAddress, photo
from checklist, persons 
where checklist.idCardno = persons.idCardno

Answer 2

您可以使用JOIN

SELECT checklist.idCardno, checklist.name, permAddress, photo 
FROM checklist JOIN persons 
ON checklist.idCardno = persons.idcardno

Answer 3

SELECT
   C.IDCARDNo
 , C.name
 , C.permAddress
 , P.Photo
FROM checklist C 
INNER JOIN persons P ON C.Idcardno = P.idCardno

Answer 4

您需要使用JOIN

select  C.idCardno,
        C.name,
        C.permAddress,
        P.photo   
from checklist C
join persons P
on   C.idCardno=P.idCardno

Answer 5

如果idCardno <-> idcardno是两个表之间的共享键，并且输出中的名称是来自人的名称，只需使用JOIN：

SELECT c.idCardno, p.name, permAddress, photo FROM checklist c JOIN persons p ON c.idCardno = p.idcardno

Answer 6

使用加入：

select 
C.idCardno,C.name,C.permAddress,P.photo   
from checklist C
join persons P
on C.idCardno=P.idCardno

参考链接以供参考：Join

Answer 7

从核对清单中选择c.idCardno，c.name，c.permAddress，p.photo作为c左侧加入人员为c.idCardno = p.idCardno

从2个不同的表中选择行

7 个答案: