This code is working perfectaly in mysql run command
SELECT employeeCode
FROM employee_details
WHERE employeeCode
IN (
SELECT DISTINCT (employeeCode) FROM quiz_answer_detailsWHERE submitTime
IN (SELECT MIN( submitTime ) FROM quiz_answer_details WHERE quizId
IN (SELECT id FROM quiz_details WHERE uploadtime = '2014-04-03')
AND answer IN (SELECT answer FROM quiz_details WHERE uploadtime = '2014-04-03'))
)
But I want to use this code on my codeigniter, but it is not working.
My codeigniter query code is
$this->db->select('employeeCode');
$this->db->from('employee_details');
$this->db->where_in('employeeCode');
$this->db->select('DISTINCT(employeeCode)');
$this->db->from('quiz_answer_details');
$this->db->where_in('submitTime');
$this->db->select('min(submitTime)');
$this->db->from('quiz_answer_details');
$this->db->where_in('quizId');
$this->db->select('id');
$this->db->from('quiz_details');
$this->db->where('uploadtime',"2014-04-03");
$this->db->where_in('answer');
$this->db->select('answer');
$this->db->from('quiz_details');
$this->db->where('uploadtime',"2014-04-03");
$query=$this->db->get();
print_r($query);
if($query->num_rows>=1)
{
return $query;
}
else
{
return false;
}
What is wrong please help me