I am using pretty much all variables in my query and i am pretty sure my syntax is wrong somewhere. I have tried a lot of different ways to setup my query. Basically im trying to update a specific row with the id, and the column that is the variable $loc.
mysqli_query($con,"UPDATE `" . $tbvbr . "` SET $loc='".$addscore."' WHERE pid='".$pn."' ");
i also tried
mysqli_query($con,"UPDATE `" . $tbvbr . "` SET $loc='$addscore' WHERE pid='$pn' ");
and
mysqli_query($con,"UPDATE `" . $tbvbr . "` SET $loc=$addscore WHERE pid=$pn ");
Thanks
$sql = "UPDATE `" . $tbvbr . "` SET " . $loc . " = '" . $addscore . "' WHERE pid= '" . $pn . "'";
mysqli_query($con,$sql);
Does this work?
mysqli_query($con,"UPDATE ".$tbvbr." SET ".$loc." = '".$addscore."' WHERE pid = ".$pn);
Related
I have database with column "kredit". I want to add $dobitak to kredit.
So if is in database kredit=10, and $dobitak=15 kredit+dobitak=25 but my code return me kredit=15 in database.
$sql = "UPDATE user
SET kredit='kredit' + '".$dobitak."'
WHERE id='" . $info['user_id'] . "'";
What I need to change to get correct result in database?
try this ...
$sql = "UPDATE user
SET kredit=kredit + ".$dobitak."
WHERE id='" . $info['user_id'] . "'";
Because for integer type field you need not enclose with "'"
kredit = kredit + '". $dobitak ."'
WHERE id='" . $info['user_id'] . "'";
Remove the ' ' from around kredit
$updateSeats = mysql_query("UPDATE FORM_dateAndSeating SET NumberOfSeats = " . $removeSeatingNumber . " WHERE DATE = " . $revertToStandardDate);
In the code above I am trying to update the value within the MYSQL table.
When I echo the variables they show the data I am expecting, however the database is not being updated.
There is no error being returned either.
What are other possibilities for the sql not to update properly??
This will work:
$updateSeats = mysql_query("UPDATE FORM_dateAndSeating
SET NumberOfSeats = '" . $removeSeatingNumber . "'
WHERE DATE = '" . $revertToStandardDate . "'");
Long form:
$updateSeats = mysql_query("UPDATE FORM_dateAndSeating SET NumberOfSeats = '" . $removeSeatingNumber . "' WHERE DATE = '" . $revertToStandardDate . "'");
The variables need to be inside double quotes including single quotes
I.e.: '" . $removeSeatingNumber . "' WHERE DATE = '" . $revertToStandardDate . "'
-------^ --------------------------------------------^ -----------------------^ ----------------------------------------------^
Add apostrophes around your column values.
the below query works and returns results
$query = "SELECT * FROM table WHERE District = '" . $var . "' ORDER BY Form_Date DESC";
where as if I substitute the word "District" with a variable, it doesn't work
$query = "SELECT * FROM table WHERE '" . $distvar . "' = '" . $var . "' ORDER BY Form_Date DESC";
what is wrong with this one and how can I make it work?
Remove the quotes surrounding the field you are testing for, or replace them with backticks to save you from the mysql parser mistaking it for a potentially reserved word:
$query = "SELECT * FROM `table` WHERE `" . $distvar . "` = '" . $var . "' ORDER BY Form_Date DESC";
try this :
$query = "SELECT * FROM table WHERE `" . $distvar . "` = '" . $var . "' ORDER BY Form_Date DESC";
or
$query = "SELECT * FROM table WHERE " . $distvar . " = '" . $var . "' ORDER BY Form_Date DESC";
I'm trying to update two rows in my database using a query (which is going to be run from a PHP script) and there is just one Condition (WHERE). What I've tried is:
$sql = 'UPDATE ' . CANNED_MESSAGES . "
SET canned_message_content = '" . $db->sql_escape($content) . "',
canned_message_title = '" . $db->sql_escape($title) . "'
WHERE id = '" . intval($id) . "'" ;
$db->sql_query($sql);
Can you tell me whats wrong with my query? :)
This may be due to Quotes mismatch. Please use this
$sql = "UPDATE '" . CANNED_MESSAGES ."'
SET canned_message_content = '" . $db->sql_escape($content) . "',
canned_message_title = '" . $db->sql_escape($title) . "'
WHERE id = '" . intval($id) . "' " ;
I highly doubt that two rows can have the same id column. Do they? If not, how could you update 2 rows by specifying a condition on a column with such a constraint?
Ok, I am querying my DB for a file. And I want to use a PHP global variable and stick it somewhere in that output using say a '$dir' in my table. Any possible way to do so?
Just use it in a string for the query like you would in any other string. eg:
$sql = "UPDATE TABLE x SET dir=" . $dir . " WHERE id=" . $id;
Though if you do this and your variables use user input it's VERY IMPORTANT to sanitize them against SQL injection and such. The function mysql_real_escape_string() is provided for just such instances.
$sql = "UPDATE TABLE x SET dir=" . mysql_real_escape_string($dir) . " WHERE id=" . mysql_real_escape_string($id);
$query = "SELECT '" . $dir . "' as myVariable, userName, userpassword from users where userName = ...."
The first reply was missing some quotes:
$sql = "UPDATE TABLE x SET dir=" . $dir . " WHERE id=" . $i
->
$sql = "UPDATE TABLE x SET dir='" . mysql_real_escape_string($dir) . "' WHERE id=" . $i
and
$sql = "UPDATE TABLE x SET dir=" . mysql_real_escape_string($dir) . " WHERE id=" . mysql_real_escape_string($id);
->
$sql = "UPDATE TABLE x SET dir='" . mysql_real_escape_string($dir) . "' WHERE id=" . mysql_real_escape_string($id);