Seems simple but what am I doing wrong here? I just want the max value in a column for a given vendor ID. Can I use the as clause in a recordset?
$query = mysql_query("SELECT max(container_no) as newcontainer
FROM FETE_profiles WHERE vendor_id = '$mvendorid'");
while($rst = mysql_fetch_array($query)) {
print $rst[newcontainer] . "<br/>";
}
Just try like this
$query = "SELECT max(container_no) as newcontainer
FROM FETE_profiles WHERE vendor_id = ".$mvendorid." ";
$result = $mysql->execute_sql_query($query);
while(#$rows = mysql_fetch_array($result))
{
print $rows['newcontainer ']. "<br/>";
}
yes, you can i think...
but when you want to print it just add single quote like this $rst['newcontainer']
got it working everyone thanks for all your answers. It was code above, pushing a vendor id into this sql statement which had no representative rows in the profiles table.
duh! well that happens when you dont have the luxury of peer review :-)
Related
I've tried to get this to work in several ways, but I can't get this query to return the Cost value from the database to the $cost variable:
$query2 = "SELECT Cost FROM 'item' WHERE Item = '$item'";
$cost= $db->query($query2);
It seems to be empty when I try to echo it.
(The $item variable is selected from a dropdown list generated from the item-table in the mySQL-db. This works fine and if I echo the value from $item, it returns the name of the item as expected.)
Anybody sees what I'm doing wrong?
I could post my complete code if necessary, but I believe this explanation may be sufficient.
You have to declared 'fetch_array' and Make reference this URL : http://php.net/manual/en/mysqli-result.fetch-array.php
For Example:-
$query = "SELECT Name, CountryCode FROM City ORDER by ID LIMIT 3";
$result = $mysqli->query($query);
$row = $result->fetch_array(MYSQLI_NUM);
Change $query2 = "SELECT Cost FROM 'item' WHERE Item = '$item'"; to
$query2 = "SELECT Cost FROM item WHERE item = '".$item."'";
Assuming Cost is your column name, the first item is your table name, the second item is another column name (Please change your naming convention and not use the same name for table and column). To make your question clearer, please provide us with your table name, your column names so that we can give you a more accurate answer.
Also you will need to escape your $item variable by using '".$item."' so that you can query from your database proper using that variable.
You will then need to fetch the results from querying the database.
$results = $db->fetch_all($cost);
To test that the data were successfully fetched, you can test it by printing it using print_r($results); This should return you an array of the results.
This might help you.
$input = "100";
$query = "select sal from sal where sal='$input'";
$result = mysql_query($query);
$row = mysql_fetch_row($result);
//This will print sal
echo $row['sal'];
Please let me know if you've any questions.
$query=mysql_query("SELECT Cost FROM item WHERE Item = '$item'");
while($x=mysql_fetch_array($query))
{
$cost=$x['Cost'];
echo $cost; //here we can return the result
}
I have looked all over and at tons of code and examples.. This is such a small bit of code but I just can't seem to get it to work.
I have dbo.accounts which contains the id, username, password, createtime..
I have a simple form, you type in the username, and I need the select query to return the ID based on the username.
$result = mssql_query('SELECT id FROM dbo.account WHERE name = $username');
The dbo.gamemoney table will just insert some hardcoded info such as an amount of coins for the game..
My problem is that if I use a query as ID = 123, it works, but when I try to grab the id of dbo.accounts by using the username, I get nothing back.
I know it has to be something small, But I have tried to figure it out for so many hours now that I'm honestly lost..
Thanks for your time,
Chris
Since, $username is string type, you have to enclose it in quotes.
$result = mssql_query("SELECT id FROM dbo.account WHERE name = '$username'");
As a better practice would suggest use a try-catch scenario so that you get the exact error log. Try -
$result = mssql_query('SELECT id FROM dbo.account WHERE name = "'.$username.'"') or die('MSSQL error: ' . mssql_get_last_message());
Thanks everyone for the help!
I was able to get it working. Now I'll make sure it's the right way. I had forgot to add,
while($row = mssql_fetch_array($result)) {
$id = $row['id'];
$ip = $row['ip'];
}
Thats why the id was blank. I was missing some code.
Chris
How do I echo the latest values in column1? The below code echos the values before the update.
while($line = mysql_fetch_array($result)) {
$Student = $line["calss8"];
$querySf = "SELECT SUM(ABC) AS val1 FROM tbl1 WHERE student = '$Student'";
$resultSf = mysql_query($querySf);
$rSf = mysql_fetch_array($resultSf);
$totalSf = $rSf['val1'];
$totTMonth = $totalSf;
mysql_query("UPDATE tbl4 SET column1 = $totTMonth WHERE student = '$Student' LIMIT 1");
}
echo $line["column1"].",,";
As far as I know, you'll have to make a separate query to see what was just updated. I mean, run your select, perform your update, then do another select. You can get general information like how many rows were updated, but I don't think you can get specific information like the changed values in a column. Phil was right in suggesting that you should just print out the '$totTMonth' value since that is what you are updating your column with. That would be less overhead than doing another query to the database.
I think that problem starts before the code above. This code line will display the select results :echo $line["column1"].",,";. The variable $line is set before the code above. My solution is to do the following:
$result1 = mysql_query("SELECT column1 FROM student ..."); /* I insert the select query here */
While($row= mysql_fetch_array($result)) {
echo $row['column1'].",,";
}
I need someone to help me with this problem. My head doesn't want to think straight today.
So, i have a table named "recensions", and another named "comments". In each table, i have a column named "amne_id". This would make so i could connect the comments to the correct recension.
Now, on my first page, i simply get all the recensions with the code:
$rec = $this->db->get('recensions');
What i want is to count how many comments each recension has. But i have no idea how. I guess i maybe should use JOIN and num_rows()?
Please ask if you dont understand, so i can explain better.
Have a nice day!
$this->db->select('COUNT(*) as count, recensions.anme_id as recension_id')
->from('recensions')
->join('comments','recensions.anme_id = comments.anme_id','left')
->group_by('anme_id');
$result = $this->db->get();
Should give you the recensions id and the comment count for that id.
then loop:
foreach($result->result() as $row){
echo "Recension id $row->recension_id has $row->count comments<br />";
}
Like this??
$sql = mysql_query("SELECT * FROM recensions");
while($row = mysql_fetch_array($sql)){
$amne_id = $row{"amne_id"};
$sql2 = mysql_query("SELECT * FROM comments WHERE amne_id='$amne_id'");
$total_comments = mysql_num_rows($sql2);
echo $total_comments;
}
I don't know about the database connector you are using, but in pure SQL (assuming the connection recensions.id=comments.anme_id connection), try this:
SELECT COUNT(comments.id), anme_id
FROM recensions
LEFT JOIN comments on comments.anme_id=recensions.id
GROUP BY anme_id
Sorry if it's a stupid question but i really can't find a answer :)
Can i search and echo multiple results out of my database? for example
id|first name|last name|email-adress
1 |matthias |oben |matthiasoben#...
2 |senne |vanhoof |sennevanhoof#...
3 |han |jacobs |hanjacobs#...
4 |matthias |dieltiens|matthiasdieltiens...
5 |jeroen |meys |jeroen.meys#...
and i want to echo the email-adress of the peoples with the
name 'matthias'
Is this possible?
Thanks
Something like ....
$query = "SELECT * FROM People WHERE first_name = 'matthias'";
$results = mysql_query($query);
while ($row = mysql_fetch_assoc($result)) {
echo $row['email'] . "<br />";
}
Of course, u should run mysql_query, and then do loop until the mysql_fetch_row is empty:
$result=mysql_query("select * from bla");
while($row=mysql_fetch_row($result))
{
your code here... $row[0]...$row[FIELD NUBMER];
}
for you seconds question, you should use WHERE in ur query
SELECT 'email' FROM YOUR_TABLE WHERE name='matthias'
Yes, you can. Use an SQL statement that returns multiple rows, for example
SELECT `email-address` FROM `table` WHERE `first name` = 'matthias'
(some very bad column names there; stick to letters, numbers and underscores only)