我有两张这样的桌子:
Item
-------------------------------------
|ID | ImageURLID | BannerImageURLID |
-------------------------------------
| 1 | 1 | 2 |
| 2 | 3 | 4 |
| 3 | 5 | 6 |
-------------------------------------
ImageURL
--------------------------------------
|ID | iOSURL | iOSRetinaURL |
--------------------------------------
| 1 | www.test.at | www.testR.at |
| 2 | www.bann.at | www.bannR.at |
| 3 | www.test.at | www.testR.at |
| 4 | www.bann.at | www.bannR.at |
| 5 | www.test.at | www.testR.at |
| 6 | www.bann.at | www.bannR.at |
--------------------------------------
我希望输出看起来像这样:
-------------------------------------------------------------------------------------
|ID | ImageURLiOS | ImageURLiOSRetina | BannerImageURLiOS | BannerImageURLiOSRetina |
-------------------------------------------------------------------------------------
| 1 | www.test.at | www.testR.at | www.bann.at | www.bannR.at |
| 2 | www.test.at | www.testR.at | www.bann.at | www.bannR.at |
| 3 | www.test.at | www.testR.at | www.bann.at | www.bannR.at |
-------------------------------------------------------------------------------------
我尝试了一些分组和内部连接,但没有任何效果。是否有可能用 SQL 来完成,还是我必须做一些 PHP 处理?