如何在codeigniter中获取或显示重复数据

Question

有人可以使用codeigniter共享一些如何从我的数据库中获取或显示重复数据的代码。

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提前谢谢。

Answer 1

试试这个

SELECT column_name FROM table_name  GROUP BY column_name HAVING COUNT(column_name) > 1;

您可以在codeigniter中执行此操作

$sql_select = 'SELECT column_name FROM table_name  GROUP BY column_name HAVING COUNT(column_name) > 1';
$query = $this->db->query($this->sql_select);
$result = $query->result_array();