where 子句中的列“id”不明确

Posted 2023-02-24

【中文标题】where 子句中的列“id”不明确

【英文标题】：Column 'id' in where clause is ambiguous

【发布时间】：2014-05-03 04:04:17

【问题描述】：

我收到此错误，但我不知道为什么？

错误号：1052 where 子句中的列 'id' 不明确

SELECT `leads`.*,
       `customers`.`id` AS customers_id,
       `customers`.`name` AS customers_name,
       `customers`.`company` AS customers_company,
       `customers`.`email` AS customers_email,
       `customers`.`phone` AS customers_phone,
       `customers`.`created_at` AS customers_created_at,
       `customers`.`updated_at` AS customers_updated_at,
       `customers`.`ip_address` AS customers_ip_addressFROM (`leads`)
JOIN `customers` ON `customers`.`id` = `leads`.`customer_id`
WHERE `id` = '3'
  AND `leads`.`id` = '1'LIMIT 1

文件名：/home/www/REMOVED/models/lead.php

行号：12

函数如下所示：

function get($id)

  $this->db->select('leads.*, customers.id AS customers_id, customers.name AS customers_name, customers.company AS customers_company, customers.email AS customers_email, customers.phone AS customers_phone, customers.created_at AS customers_created_at, customers.updated_at AS customers_updated_at, customers.ip_address AS customers_ip_address');
  $this->db->where('leads.id', '1');
  $this->db->from('leads');
  $this->db->join('customers', 'customers.id = leads.customer_id');
  $this->db->limit(1);
  $query = $this->db->get();

  if ($query->num_rows() == 1)
  
    $result = $query->result();
    return $result[0];
  

第 12 行是$query = $this->db->get();

怎么了？

【参考方案1】：

WHERE id = '3'

您没有指定 id 字段来自哪个表。你的意思是：

WHERE customer.id = '3'

条件将是 customer.id 而不是 id

【讨论】：

我在我的代码中指定了它？ $this->db->join('customers', 'customers.id = Leads.customer_id');

这就是 join 子句 - 查看 SQL 示例中的 WHERE 子句 - 就在那里

但是在我的代码中我确实指定了表格？ $this->db->where('leads.id', '1');

是的，但正如@Geoff Williams 所说，您的代码中似乎有一个WHERE id = '3'，因此，您的代码中可能会有一个$this->db->where('id', 3)，它正在添加WHERE给你错误

另外，检查@Mikhail 来自***.com/questions/9379644/…的回答