Question

可能重复：
How can an SQL query return data from multiple tables

请帮我解决这个问题，我有2个mysql表，

tbl_product

id  name         title  userID
1   Phone        N95       1
2   Tab          Google    1
3   Laptop       Toshiba   1
4   PhoneNext    Nokia     2
5   Mp3 Player   Apple     2
6   Gallexy      Samsung   3
7   Hard         320GB     6

tbl_user

id selName
1  Jhon
2  Khan
3  Mohomad
4  Ann
6  Ricky

我需要得到这个输出加入这两个表，

Phone N95 (userID = 1)

Tab Google (userID = 1)

Laptop Toshiba (userID = 1)

Jhon（id = 1）

PhoneNext Nokia (userID = 2)

Mp3 Player Apple (userID = 2)

汗（id = 2）

Gallexy Samsung (userID = 3)

Mohomad（id = 3）

请帮助我们各位感谢....

I Need to get Like This out put,
<table width="224" border="1"> <tr> <td width="214">Phone N95 (userID = 1)</td> </tr> <tr> <td>Tab Google (userID = 1)</td> </tr> <tr> <td>Laptop Toshiba (userID = 1)</td> </tr> <tr> <td align="right" bgcolor="#FFFF99">Jhon (id=1)</td> </tr> <tr> <td>PhoneNext Nokia (userID = 2)</td> </tr> <tr> <td>Mp3 Player Apple (userID = 2)</td> </tr> <tr> <td align="right" bgcolor="#FFFF99">Khan (id=2)</td> </tr> </table>

Answer 1

你不能用这样的东西吗？

Select title,userID from tbl_product 
where tbl_product.userID = tbl_user.id 
group by userID

Answer 2

SELECT tbl_product.userID, tbl_product.name, tbl_product.title, tbl_user.selName 
FROM tbl_product
LEFT JOIN tbl_user ON tbl_product.userID = tbl_user.id
GROUP BY tbl_product.userID

我建议您开始阅读有关MySQL的基础知识。

Php mysql使用get输出我提到的内容

2 个答案:

MySQL DOC

MySQL SELECT

MySQL JOIN