I want to update a query in laravel where $field = $field+1 . It works fine using mysqli_query. But It is not working laravel orm.
I want to run this query in laravel orm
$sql = "Update $tbl set cnt=cnt+1 where user_id='x'"
When running this query in mysql I get following results
If cnt =1 in databases it will increment $cnt = $cnt+1 = 1+1 =2
I want to run this sql query in laravel orm
$where = ['user_id' => 'x'];
$field = ['cnt' => 'cnt+1'];
$tbl = 'log_cnt';
Capsule::table($tbl)->where($where)->update($field);
But After running this query output will show $cnt=0 in database
Incrementing or decrementing a value of a column
To increment single column
Capsule::table('log_cnt')->increment('cnt');
Query: UPDATE log_cnt SET cnt = cnt + 1;
Capsule::table('log_cnt')->increment('cnt', 5);
Query: UPDATE log_cnt SET cnt = cnt + 5;
To decrement single column
Capsule::table('log_cnt')->decrement('cnt');
Query: UPDATE log_cnt SET cnt = cnt - 1;
Capsule::table('log_cnt')->decrement('cnt', 5);
Query: UPDATE log_cnt SET cnt = cnt - 5;
You may also specify additional columns to update:
Capsule::table('log_cnt')->increment('cnt', 1, ['user_id' => 'x']);
Query: UPDATE log_cnt SET cnt = cnt + 1, user_id = 'x';
Reference : https://laravel.com/docs/5.4/queries#increment-and-decrement
Related
I have one table based on which one I have to update 6 rows in the other table for matching ids. It is total of over 1000 records so most of the time I get timeout error with current script.
The way I do it now is, I select the range of ids between two dates from the first table, store it into an array and then run foreach loop making update in the second table where the ids are the same, so basically I run a query for every single id.
Is there anyway I could speed it up the process?
I found only a way to generate the each within the foreach loop
UPDATE product SET price = CASE
WHEN ID = $ID1 THEN $price1
WHEN ID = $ID1 THEN $price2
END
But I don't know how could I modify this to update multiple rows at the same time not just one.
My script code look like that
$sql = "SELECT * FROM `games` where (ev_tstamp >= '".$timestamp1."' and ev_tstamp <= '".$timestamp2."')";
while($row = mysqli_fetch_array($sql1)){
$one_of =[
"fix_id" =>$row['fix_id'],
"t1_res" =>$row['t1_res'],
"t2_res" =>$row['t2_res'],
"ht_res_t1" =>$row['ht_res_t1'],
"ht_res_t2" =>$row['ht_res_t2'],
"y_card_t1" =>$row['y_card_t1'],
"y_card_t2" =>$row['y_card_t2'],
"t1_corners" =>$row['t1_corners'],
"t2_corners" =>$row['t2_corners'],
"red_card_t1" =>$row['red_card_t1'],
"red_card_t2" =>$row['red_card_t2']
];
array_push($today_games,$one_of);
}
foreach($today_games as $key=>$val){
$cards_t1=$val['red_card_t1']+$val['y_card_t1'];
$cards_t2=$val['red_card_t2']+$val['y_card_t2'];
$sql = "Update sights SET t1_res='".$val['t1_res']."',
t2_res='".$val['t2_res']."', ev_tstamp='".$val['ev_tstamp']."',
ht_res_t1='".$val['ht_res_t1']."', ht_res_t2='".$val['ht_res_t2']."',
t1_corners='".$val['t1_corners']."',t2_corners='".$val['t2_corners']."',
t1_cards='".$cards_t1."',t2_cards='".$cards_t2."'
where fix_id='".$val['fix_id']."' "
}
Consider an UPDATE...JOIN query using fix_id as join column. Below runs mysqli parameterized query using timestamps. No loop needed.
$sql = "UPDATE sights s
INNER JOIN `games` g
ON s.fix_id = g.fix_id
AND g.ev_tstamp >= ? and g.ev_tstamp <= ?
SET s.t1_res. = g.t1_res,
s.t2_res. = g.t2_res,
s.ev_tstamp = g.ev_tstamp,
s.ht_res_t1 = g.ht_res_t1,
s.ht_res_t2 = g.ht_res_t2,
s.t1_corners = g.t1_corners,
s.t2_corners = g.t2_corners,
s.t1_cards = (g.red_card_t1 + g.y_card_t1),
s.t2_cards = (g.red_card_t2 + g.y_card_t2)";
$stmt = mysqli_prepare($conn, $sql);
mysqli_stmt_bind_param($stmt, 'ss', $timestamp1, $timestamp2);
mysqli_stmt_execute($stmt);
I got some issues with my current code. Example, on a PHP page, there's a table that displays all tools that borrowed the users. In that table, each data rows contain a checkbox. Users can select any tools that they want to return first by tick the checkbox and press "return" button.
At Server-side, after clicking the "return" button, it will go to the page named return_selected.php. At this page, it will update Table A and Table B. This one is successful.
Now, I want to update Table C if all there's a condition, for example, ALL tools returned. This one I still do but failed. Below is the code
return_selected.php
<?php
include("../../../../config/configPDO.php");
include("../../../../config/check.php");
$tools_id = $_POST['tools_id'];
$borrow_id = $_POST['borrow_id'];
$checkbox=explode( ',', $_POST['ids'][0] );
for($i=0;$i < count($checkbox); $i++){
$tools_id=$checkbox[$i];
$sql="UPDATE ets_tools SET borrow_id = NULL WHERE tools_id=:tools_id";
$query=$conn->prepare($sql);
$query->execute(array(':tools_id' => $tools_id));
$sql2="UPDATE ets_tools_borrow SET time_to = GETDATE() WHERE tools_id=:tools_id";
$query3=$conn->prepare($sql2);
$query3->execute(array(':tools_id' => $tools_id));
// want to update table if all tools returned.
$query2 = "
SELECT
ets_tools.tools_id, ets_tools.tools_name, ets_tools.borrow_id,
ets_borrow.time_from, ets_borrow.time_to, ets_borrow.status_id
FROM ets_tools
INNER JOIN ets_borrow ON ets_tools.borrow_id = ets_borrow.borrow_id
WHERE ets_tools.borrow_id IS NOT NULL AND ets_borrow.borrow_id = :borrow_id
";
$sql2=$conn->prepare($query2);
$sql2->execute(array(':borrow_id' => $borrow_id));
if($sql2->rowCount() > 0)
{
header("Location: return.php");
}else{
$sql3="UPDATE ets_borrow SET time_to = GETDATE(), status_id = 2 WHERE borrow_id=:borrow_id";
$query3=$conn->prepare($sql3);
$query3->execute(array(':borrow_id' => $borrow_id));
header("Location: return.php");
}
}
?>
Can anyone know how to solve this? Thank you.
You need to consider the following:
As is mentioned in the documentation, PDOStatement::rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement executed by the corresponding PDOStatement object and for most databases the number of rows returned from a SELECT statement is not returned correctly. So, you may use a SELECT COUNT(*) ... approach to get this count.
For your specific case you may try to use an UPDATE ... WHERE NOT EXISTS ... statement to update the rows in the ets_borrow table and skip this SELECT ... FROM ... INNER JOIN ... statement.
I'm not sure if I understand corectly the use of header("Location: return.php"); in a for loop, probably you need to redirect after this loop.
Example, based on your code:
<?php
include("../../../../config/configPDO.php");
include("../../../../config/check.php");
$tools_id = $_POST['tools_id'];
$borrow_id = $_POST['borrow_id'];
$checkbox=explode( ',', $_POST['ids'][0] );
for($i=0; $i < count($checkbox); $i++) {
$tools_id=$checkbox[$i];
$sql = "UPDATE ets_tools SET borrow_id = NULL WHERE tools_id = :tools_id";
$query = $conn->prepare($sql);
$query->execute(array(':tools_id' => $tools_id));
$sql2 = "UPDATE ets_tools_borrow SET time_to = GETDATE() WHERE tools_id = :tools_id";
$query2 = $conn->prepare($sql2);
$query2->execute(array(':tools_id' => $tools_id));
$sql3 = "
UPDATE ets_borrow
SET time_to = GETDATE(), status_id = 2
WHERE
(borrow_id = :borrow_id1) AND
NOT EXISTS (
SELECT 1
FROM ets_tools
INNER JOIN ets_borrow ON ets_tools.borrow_id = ets_borrow.borrow_id
WHERE ets_tools.borrow_id IS NOT NULL AND ets_borrow.borrow_id = :borrow_id2
)
";
$borrow_id1 = $borrow_id;
$borrow_id2 = $borrow_id;
$query3 = $conn->prepare($sql3);
$query3->execute(array(':borrow_id1' => $borrow_id1, ':borrow_id2' => $borrow_id2));
}
header("Location: return.php");
?>
update radcheck SET radcheck.attribute = 'rejected' where radcheck.username IN (select username from radpostauth where radpostauth.username = $mobile AND radpostauth.authdate < now() - 120)");
i want my query to update column "attribute" of a username in radcheck table when the same username in radpostauth table has value "reject" in his reply column
i need to first update radpostauth.reply = 'reject' on the basis of radpostauth.authdate
Please use join in mysql query because better performance use join instead of inner query
update radcheck as rc
JOIN radpostauth asrpa ON (rpa.username = rc.username) AND (rpa.authdate < now() - 120)
SET rc.attribute = 'rejected'
where rpa.reply = 'reject';
Hi can you please use JOIN with update query
update radcheck
JOIN radpostauth ON radpostauth.authdate < now() - 120
SET radpostauth.reply = 'reject'
update radcheck
JOIN radpostauth ON (radpostauth.username = radcheck.username) AND (radpostauth.authdate < now() - 120)
SET radcheck.attribute = 'rejected'
where radpostauth.reply = 'reject';
based on your description you shuold subseelect the username where adpostauth table has value "reject" in his reply column
update radcheck
SET radcheck.attribute = 'rejected'
where radcheck.username IN (select username
from radpostauth
where radpostauth.reply = 'reject' ");
Suppose I have a table TABLE:
NAME ID ...
m -1 ...
f -1 ...
g -1 ...
b -1 ...
z -1 ...
And I want to turn it into:
NAME ID ...
f 1 ...
g 2 ...
m 3 ...
b -1 ...
z -1 ...
You probably get the idea:
select the first 3 rows from the original table (preserving order)
order selected rows by the NAME column.
update selected rows' IDs with their position in the new table (keeping the remaining unselected rows in their original positions).
So (m, f, g) got sorted to (f, g, m) and (b, z) remained (b, z).
Here's how I am trying to do it in PHP:
$count = 0;
$query = "UPDATE TABLE SET ID = $count:= $count + 1 ORDER by NAME DESC LIMIT 3";
mysqli_query($con, $query);
But I don't think I can just go ahead and increment a counter and store its value like that. Any advice?
You can try this :
$limit = 3;
for($count = 0 ; $count < $limit;$count++ ){
$query = "UPDATE TABLE SET ID = $count + 1 WHERE ID = '-1' ORDER by NAME DESC";
mysqli_query($con, $query);
}
$query = "UPDATE TABLE SET ID = '-1' WHERE ID > $limit ORDER by NAME DESC";
mysqli_query($con, $query);
In the above logic :
In the final loop, all the IDs are set to $limit
However the update command outisde the loop will set back IDs to -1 again
First, you can quickly query for the first 3 rows in the table and get the name property only and assign the value in an array.
$sql = "select name from table order by name limit 3"
$query = $mysqli->query($sql);
Now let's construct a helper array:
while ($row = $mysqli->fetch_assoc()) {
$a[] = $row['name'];
}
Now just structure the queries:
foreach($a as $id => $name) {
$query = "update table set id={$id+1} where name='$name' limit 1";
// execute the query
}
Note that I assume that the name is unique so I added the limit 1 directive to tell it stop looking for rows to update once it has found a row.
Also, don't forget that array keys are counting starting from 0, hence we are adding 1 to the $id in the loop.
There may be more elegant solutions but this one is rather easy to understand and use.
In MySQL:
SET #row_number = 0;
update TABLE d
join
(
select
NAME,
#row_number:=#row_number+1 as ID,
from
(select NAME from TABLE limit 3) t
order by
NAME asc
) s on s.NAME = d.NAME
set d.ID = s.ID;
SQLFiddle: http://sqlfiddle.com/#!9/dffecf/1
This assumes NAME is your unique key, otherwise likely best to replace with an Identity column in your table and use that for the update.
This approach may require some syntax changes depending on your DB engine. By doing this in SQL, we only make one pass at the DB. Not a huge deal to iterate in multiple passes with PHP if you're only updating three records, but if it was a 1000, etc.
the thing is that i don know if there is a way to get a value from a subquery over an update operation, the query that i'm trying to do looks like this, on a example code of my model :
$query = "UPDATE some_table SET value_1 = ((SELECT value_2 FROM other_table WHERE id = 2) + 1) WHERE id = 2";
$this->db->query($query);
i hope you can help me or at least let me know an alternative way to get this using the active record
PD i'm working with the CodeIgniter Framework
The equivalent of
UPDATE some_table SET value_1 = ((SELECT value_2 FROM other_table WHERE id = 2) + 1) WHERE id = 2
in ActiveRecord is probably:
$value_2 = $this->db->get_where('other_table', array('id' => 2))[0];
$data = array('value_1', $value_2 + 1);
$this->db->update('some_table', $data, array('id' => 2));
I not working with Codeigniter, but try this:
$query = "UPDATE some_table st SET st.value_1 = ((SELECT ot.value_2 FROM other_table ot WHERE ot.id = 2) + 1) WHERE st.id = 2";
$this->db->query($query);