How to use the codeigniter with $this->db->query() method?
If i use active record class i would do like this:
$query = $this->db->get('tb_cash_transaction',$num,$offset);
$this->db->order_by("CURRENCY_ID", "asc");
Now i am using the $this->db->query()
$query = "SELECT * FROM tb_cash_transaction, tb_currency, tb_user where tb_cash_transaction.CURRENCY_ID=tb_currency.CURRENCY_ID and tb_cash_transaction.USER_ID=tb_user.USER_ID and TYPE='cash_out'";
$query = $this->db->query($query);
How to implement it? Thank you.
Try with this one..
$query = "SELECT * FROM tb_cash_transaction, tb_currency, tb_user where tb_cash_transaction.CURRENCY_ID=tb_currency.CURRENCY_ID and tb_cash_transaction.USER_ID=tb_user.USER_ID and TYPE='cash_out' order by CURRENCY_ID asc LIMIT $offset , $num";
$query = $this->db->query($query);
Hope this will Help.
Thanks!
Hussain
Related
How can I convert this mysqli_fetch_array in php to codeigniter?
$kueri7 = "SELECT ceil(count(kelas_id)/(select count(user_id) from tuser where matpel_id = $idmatpel)) as jumlah from tkelas";
$cocok8 = mysqli_query($con, $kueri7);
$cocok_kelas_maksimal = mysqli_fetch_array($cocok8);
Thanks in advance.
With codeIgniter, your code would look like this:
$query = $this->db->query("SELECT ceil(count(kelas_id)/(select count(user_id) from tuser where matpel_id = $idmatpel)) as jumlah from tkelas", FALSE);
$cocok_kelas_maksimal = $query->result_array();
I have record of 1000 and more records. I have to provide only 50 records per request like
0-50, 50-100, 100-150 like this. I'm using the following code:
public function get_database($data)
<?php
{
$start = $data['start'];
$limit = $data['limit'];
$alumni_details = array();
$query1 = "select * from alumni where
status='Active',limit '".$start."','".$limit."' ";
$query_run = mysql_query($query1);
while($row = mysql_fetch_assoc($query_run))
{
$row['date_of_birth'] = date('d M, Y', strtotime($row['date_of_birth']));
$alumni_detail['alumni_details'] = $row;
$alumni_details[] = $alumni_detail;
}
echo json_encode($alumni_details);
}
But I need to take only user_id based on that I need to encode data in json dynamically with limit.
Your code as below:
$start = $data['start'];
$query = SELECT * FROM `alumni` WHERE `status` = 'Active' ORDER BY `alumni_id` LIMIT $start,5"
It should be dynamic 5 would not be taken as constant. take it in some variable,
and yes it should be fixed, but as per requirement in future it can be change so take it in variable.
$start=$data['start'];
$query=select * from alumni where status='Active' order by alumni_id Limit $start,5"
where 5 is the limit set it according to requirement
$start=$data['start'];
$query=select * from alumni where status='Active' order by alumni_id Limit $start,5"
You have syntax error in your query string.
Use concatenation for example:
$query1 = "select * from alumni where status='Active' limit ".$start.",".$limit;
Or just put variables into double quoted string:
$query1 = "select * from alumni where status='Active' limit $start, $limit";
There is a typo also: you should use $start variable in the query, not $star
I want to do a sql query like
select * where x = 10 and (y=12 or h=15)
How can I achieve that in CI ActiveRecord format?
See Active record reference
$where="x = 10 and (y=12 or h=15)";
$this->db->select('*');
$this->db->from('mytable');
$this->db->where($where);
$query = $this->db->get();
Try like
$sql = "SELECT * FROM TABLE_NAME WHERE x = 10 AND (y = 12 OR h = 15)";
$result = $this->db->query($sql);
Or like
$this->db->select('*');
$this->db->from('TABLE_NAME');
$this->db->where('x',10);
$this->db->AND('y',12);
$this->db->or_where('h',15);
$query = $this->db->get();
<?=$this->db->count_all_results('users')?>
Hi, I am stuck on something. How can run a query like the below count and echo all of the returned rows? I am currently using the above statement but I need this improvement.
<?php $aa = $this->db->query("SELECT * FROM users WHERE itemNumber = 1");
Use num_rows() method
<?php
$aa = $this->db->query("SELECT * FROM users WHERE itemNumber = 1");
echo $aa->num_rows();
?>
$this->db->query("SELECT u.*, COUNT(u_all.*) FROM users u, users u_all WHERE u.itemNumber = 1");
$numRows = $this->db->query("SELECT count(*) FROM users WHERE itemNumber = 1");
I am using LIKE to do my searching, i try it in phpMyAdmin and return the result but when i use it in php it return empty result.
$search = "ip";
$start = 0;
$query = "SELECT * FROM product WHERE product_name LIKE '%$search%' LIMIT $start,30";
$result = mysql_query($query);
if(empty($result))
$nrows = 0;
else
$nrows = mysql_num_rows($result);
It will return result when i using phpMyAdmin to run this query but when i use it in php, it return empty.
Update:
Sorry guys,
I just found out the problem is i didn't connect database as well. anyway, thanks for helping.
Try This
$query = "SELECT * FROM `product` WHERE `product_name` LIKE '%".$search."%' LIMIT 0, 30";
And if the sole purpose of your code is to get the number of products with the searched-for name, use SELECT COUNT(*) instead of doing a mysql_num_rows() on all your data. It will decrease your querytime and the amount of data that is (unnecessarily) fetched.
I am not sure why this is not working, as the query seems to be correct to me. I would like to suggest you writing query this way
$query = <<<SQL
SELECT * FROM product WHERE product_name LIKE "%$search%" LIMIT $start,30
SQL;
please note that there should not be any space or any character after SQL;
$query = "SELECT * FROM product WHERE product_name LIKE '%" . $search . "%' LIMIT " . (int) $start. ",30";
you can use directly mysql_num_rows()
but here is right code
$query = "SELECT * FROM product WHERE product_name LIKE '%".$search."%' LIMIT $start,30";
$search = "ip";
$start = '0';
$query = "SELECT * FROM product WHERE product_name LIKE '%".$search."%' LIMIT $start,30";
$result = mysql_query($query)or die(mysql_error());
if(mysql_num_rows($result) == 0){
$nrows = 0;
} else{
$nrows = mysql_num_rows($result);
}
//use mysql_num_rows($result) instead of empty($result) because in this situation $result is every time not empty so use inbuilt PHP function mysql_num_rows($result);