ThinkPHP采用原生query实现关联查询left join实例,thinkphpjoin
本文实例讲述了ThinkPHP采用原生query实现关联查询left join的方法。分享给大家供大家参考。具体如下:
thinkphp提供了join方法来实现关联查询,但是很不好用,还是用原生的方便,所以推荐大家用query方法:
复制代码 代码如下:
$Model = new Model();
$sql = "SELECT a.id, a.attr_name, a.attr_input_type, a.attr_type, a.attr_values, v.attr_value, v.attr_price ".
"FROM hh_typeattr AS a ".
"LEFT JOIN hh_siteattr AS v ".
"ON v.attr_id = a.id AND v.site_id = '$site_id' ".
"WHERE a.type_id = " . intval($type_id) ." OR a.type_id = 0 ".
"ORDER BY a.listorder, a.attr_type, a.id, v.attr_price, v.id";
$row = $Model->query($sql);
希望本文所述对大家的ThinkPHP框架程序设计有所帮助。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

Notepad++7.3.1
Easy-to-use and free code editor

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SublimeText3 Mac version
God-level code editing software (SublimeText3)

ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
