Below is codeigniter single column where_in clause $this->db->where_in('x1',$val);
how can I pass multiple column in CodeIgniter where_in clause like below MySQL query select * from tab1 where (col1,col2) in ((1,2),(2,3))
Any help appreciated
Assume your data array is like this(should be)
$val1 = array(1,2);
$val2 = array(2,3);
And query should be
$this->db->select('*');
$this->db->from('tab1');
$this->db->where_in('col1',$val1);
$this->db->or_where_in('col2',$val2);
$query = $this->db->get();
$result = $query->result_array();
Or else you can use
$this->db->query("select * from tab1 where (col1,col2) in ($val1,$val2)");
"$arr_1 = some_array;"
"$arr_2 = some array;"
If they are the same array just replace $array_2 with $arr_1
$result = $this->db->select('*')->where_in('col1',$arr_1)->where_in('col2',$arr_2)->get('tab1')->result_array();
OR
$result = $this->db->select('*')->where_in('col1',$arr_1)->or_where_in('col2',$arr_2)->get('tab1')->result_array();
Related
I'm trying to compare two arrays:
First array
$query = $db->prepare("SELECT vraagnummer FROM insertquestion");
$query->execute();
$fetch_query = $query->fetchAll(PDO::FETCH_ASSOC);
Second array
$query = $db->prepare("SELECT vraagnummer FROM vraag");
$query->execute();
$fetch_query_exists = $query->fetchAll(PDO::FETCH_ASSOC);
I want to receive all the results of $fetch_query exept for the ones that are in fetch_query_exists
I tried using:
$result=array_diff($fetch_query ,$fetch_query_exists );
But no results are displayed, just an empty array.
So how do I fetch the results of fetch_query excluding the ones that exist in fetch_query_exists ?
You can do it in single query using NOT IN
SELECT vraagnummer FROM insertquestion
WHERE vraagnummer NOT IN(SELECT vraagnummer FROM vraag)
In addition to #Saty's answer I believe the following would also do the trick without the subselect.
SELECT i.vraagnummber
FROM insertquestion i
LEFT JOIN vraag v
ON v.vraagnummer = i.vraagnummer
WHERE v.vraagnummer IS NULL;
Maybe that, but not sure:
$query = $db->prepare("SELECT vraagnummer FROM insertquestion RIGHT JOIN vraag ON insertquestion.vraagnummer = vraag.vraagnummer");
$query->execute();
$fetch_query = $query->fetchAll(PDO::FETCH_ASSOC);
If you don't want to use a single query then use this:
$result = array_diff_assoc($fetch_query , $fetch_query_exists );
I have SQL procedure in which I'm using an IN statment. It goes like this:
SELECT * FROM costumers WHERE id IN('1','2','12','14')
What I need to do is pass the values in to the IN statment as parameter which is an array in php, rather than hard-coded. How can I do that?
You can implode on this case:
$array = array('1','2','12','14');
$ids = "'".implode("','", $array) . "'";
$sql = "SELECT * FROM `costumers` WHERE `id` IN($ids)";
echo $sql;
// SELECT * FROM `costumers` WHERE `id` IN('1','2','12','14')
or if you do not want any quotes:
$ids = implode(",", $array);
You can use PHP function Implode
$array = array("1","2","12","14");
$query = "SELECT * FROM costumers WHERE id IN(".implode(', ',$array).")"
implode() is the right function, but you also must pay attention to the type of the data.
If the field is numeric, it is simple:
$values = array(1. 2, 5);
$queryPattern = 'SELECT * FROM costumers WHERE id IN(%s)';
$query = sprintf($queryPattern, implode(', ',$values));
But if it's a string, you must play with single and double quotes:
$values = array("foo","bar","baz");
$queryPattern = 'SELECT * FROM costumers WHERE id IN("%s")';
$query = sprintf($queryPattern, implode('", "',$values));
This should do the trick
$array = array('1','2','12','14');
SELECT * FROM `costumers` WHERE `id` IN('{$array}');
Try imploding the php into an array, and then interpolating that string into the SQL statement:
$arr = array('foo', 'bar', 'baz');
$string = implode(", ", $arr);
SELECT * FROM customers WHERE id in ($string);
use PHP's join function to join the values of an array.
$arr = array(1,2,12,14);
$sql = "SELECT * FROM costumers WHERE id IN(" . join($arr, ',') . ")";
$sql = "select id from table_name ";
$result = mysql_query($sql);
$data = array();
while($row = mysql_fetch_assoc($result))
{
$data[] = $row[id];
}
/* $data contains id's fetched from sql query from db.now i want to pass this id's(array of values) in $data array one by one to below select query in where condition and obtain desired result for each id.My question is how to pass an array of values to the below select statement I dont know how to do this.Any help is greatly appreciated.*/
$query = "select * from table where id1 = $data[] ";
$query = "select * from table where `id1` in (" . implode(', ', $data) . ")";
You should use the cross database function in Moodle called get_in_or_equal()
list($where, $params) = $DB->get_in_or_equal($data, SQL_PARAMS_NAMED);
$sql = "SELECT *
FROM {table}
WHERE $id {$where}"
$records = $DB->get_records_sql($sql, $params);
You can use the IN clause.
When you are totally sure you only have numeric values in your $data array. You can do the following:
$query = "select * from table where id1 IN(" . implode(',', $data) . ")";
You can use this:
$comma_separated = implode(",", $data);
if ($comma_separated != "")
$query = "select * from table where id1 IN($comma_separated)";
I have a following query in my CodeIgniter, which I'm trying to bind via parameter.
$q = "SELECT * FROM my_table WHERE id IN (?)"
$ids = "1,2,3,4";
$this->db->query($q, array($ids));
Above is not working, because the query binding treats $ids as string. How can I parameterize my query, but still be able to do "IN" operation?
EDIT
sorry, I have to use "raw SQL query". Above query is just a part of a much larger + complex query, which I can't use ActiveRecord for. Also I'm using Postgres.
Instead of string put it in array
$q = "SELECT * FROM my_table WHERE id IN (?)"
$ids = array(1,2,3,4);
$this->db->query($q, $ids);
You can achieve same thing like this without binding
Alternative
$ids = array(1,2,3,4);
$this->db->where_in('id',$ids);
$this->db->get('my_table');
Try this with where_in
$ids = array(1,2,3,4);
$this->db->select('*');
$this->db->from('my_Table');
$this->db->where_in('id',$ids);
$this->db->query($q, explode(',', $ids));
or
$this->db->where_in('id', explode(',', $ids))->get('my_table');
Active Records documentation: http://ellislab.com/codeigniter/user-guide/database/active_record.html#select
Use FIND_IN_SET like this
select * from table where FIND_IN_SET('$ids', id);
Try this code:
$ids = "('1','2','3','4')";
$q = "SELECT * FROM my_table WHERE id IN ".$ids;
$this->db->query($q);
you should use the
$ids = array('1','2','3','4');
$this->db->where_in('id', $ids);
The where_in is used in codignitor.
point is
$ids = "1,2,3,4";
$a = array($ids);
//$a[0] = "1,2,3,4";
//not $a[0]=1;$a[1]=2;$a[2]=3;$a[3]=4;
want to keep your style
$ids = "1,2,3,4";
$a = explode(",",$ids);
$q = "SELECT * FROM my_table WHERE id IN ?"
$ids = "1,2,3,4";
$this->db->query($q, explode(",", $ids));
I'm wondering how to query a database using an array, like so:
$query = mysql_query("SELECT * FROM status_updates WHERE member_id = '$friends['member_id']'");
$friends is an array which contains the member's ID. I am trying to query the database and show all results where member_id is equal to one of the member's ID in the $friends array.
Is there a way to do something like WHERE = $friends[member_id] or would I have to convert the array into a string and build the query like so:
$query = "";
foreach($friends as $friend){
$query .= 'OR member_id = '.$friend[id.' ';
}
$query = mysql_query("SELECT * FROM status_updates WHERE member_id = '1' $query");
Any help would be greatly appreciated, thanks!
You want IN.
SELECT * FROM status_updates WHERE member_id IN ('1', '2', '3');
So the code changes to:
$query = mysql_query("SELECT * FROM status_updates WHERE member_id IN ('" . implode("','", $friends) . "')");
Depending on where the data in the friends array comes from you many want to pass each value through mysql_real_escape_string() to make sure there are no SQL injections.
Use the SQL IN operator like so:
// Prepare comma separated list of ids (you could use implode for a simpler array)
$instr = '';
foreach($friends as $friend){
$instr .= $friend['member_id'].',';
}
$instr = rtrim($instr, ','); // remove trailing comma
// Use the comma separated list in the query using the IN () operator
$query = mysql_query("SELECT * FROM status_updates WHERE member_id IN ($instr)");
$query = "SELECT * FROM status_updates WHERE ";
for($i = 0 ; $i < sizeof($friends); $i++){
$query .= "member_id = '".$friends[$i]."' OR ";
}
substr($query, -3);
$result = mysql_query($query);