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Got blank value in update query


Got blank value in update query

By : GaryT
Date : December 01 2020, 05:00 PM
it fixes the issue You can simplify this by using array_filter and a foreach loop:
code :
$altxt = array_values(array_filter(array(
  "", "test", "","", "", "test1", "", "", "", ""
)));
$chk = array("3", "7");

foreach ($altxt as $key => $value) {
   echo "<br />update order_details set process_order='1' tracking_number='$value' where id=" . $chk[$key];
}


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Update query leaving a blank value

Update query leaving a blank value


By : DaPunhal
Date : March 29 2020, 07:55 AM
around this issue you didn't quote the $cleanURL variable, or possibly the $uid variable is incorrect.
code :
mysql_query("Update login SET website = '$cleanURL' WHERE loginid = '$uid'");
MySQL syntax error on "" (blank) - UPDATE query

MySQL syntax error on "" (blank) - UPDATE query


By : Bolle
Date : March 29 2020, 07:55 AM
wish help you to fix your issue Your query is a single line, yet the error is at line 2
Your code is not safe, you are not sanitizing the values and the error comes from this fact. mysql_* functions are now deprecated for this kind of mistakes.
code :
include 'includes/connection.php';

if (isset($_POST['submit'])) {
    $statement = $db->prepare("UPDATE student SET `name`=:name , `email`=:email , `dob`=:dob , `phone`=:phone , `college`=:college , `address`=:address , `state`=:state , `country`=:country WHERE id = :id");

    $statement->execute(array(
        ':name' => $_POST['name'],
        ':email' => $_POST['email'],
        ':dob' => $_POST['dob'],
        ':phone' => $_POST['phone'],
        ':college' => $_POST['college'],
        ':address' => $_POST['address'],
        ':state' => $_POST['state'],
        ':country' => $_POST['country'],
        ':id' => $_POST['id']
    ));
}
include 'includes/connection.php';

if (isset($_POST['submit'])) {
    $name = mysql_real_escape_string($_POST['name']);
    $email = mysql_real_escape_string($_POST['email']);
    $dob = mysql_real_escape_string($_POST['dob']);
    $phone = mysql_real_escape_string($_POST['phone']);
    $college = mysql_real_escape_string($_POST['college']);
    $address = mysql_real_escape_string($_POST['address']);
    $state = mysql_real_escape_string($_POST['state']);
    $country = mysql_real_escape_string($_POST['country']);
    $id = mysql_real_escape_string($_POST['id']);

    /**
     * For debugging purposes
     */
    $query = "UPDATE student SET `name`='$name' , `email`='$email' , `dob`='$dob' , `phone`='$phone' , `college`='$college' , `address`='$address' , `state`='$state' , `country`='$country' WHERE id = '$id'";
    mysql_query($query) or die(mysql_error());

    /**
     * For debugging purposes
     */
    echo "<pre>Last query: $query</pre>";
}
Pass Form Values to Update Query without updating blank fields in table

Pass Form Values to Update Query without updating blank fields in table


By : user3428161
Date : March 29 2020, 07:55 AM
I wish did fix the issue. You can build the Insert statement dynamically based upon the fields and values. Here is some Pseudo code. If you add more to your question (i.e. click Edit on your question), I can give you more specific help.
Conditionally build up a string (i.e. add values only if there is a value in your control) called something like strFields in the format of:
code :
"TableFieldName1, TableFieldname2, TableFieldname3"
"Value1, Value2, Value3"
"INSERT INTO Table 1 (" & strFieldNames & ")"
"VALUES (" & strValues & ")"
Access, Update Query that does not overwrite data with blank cells

Access, Update Query that does not overwrite data with blank cells


By : user3828437
Date : March 29 2020, 07:55 AM
this will help Excuse formatting, I'm answering from my phone...
You could replace the elements of the SET such that, for example:
Update query successful but getting blank values in SQL Server database

Update query successful but getting blank values in SQL Server database


By : user3486864
Date : March 29 2020, 07:55 AM
Any of those help I solved it. Turns out the problem was that i was missing a postback check in pageload function. Therefore, the values from the update query were being removed by the values already present in the database and giving me blank values as a result. I just added the
code :
if(!Page.IsPostBack)
{
}
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