i've the following table:
Year, Name, Revenue, Qty
I would like a result table with
Name, Revenue2012, Qty2012, Revenue2013, Qty2013
How to do in Sql for MySql ?
Thanks
MySQL doesn't have a PIVOT function but you can get the result using an aggregate function with a CASE expression:
select name,
sum(case when year = 2012 then revenue else 0 end) revenue2012,
sum(case when year = 2012 then qty else 0 end) qty2012,
sum(case when year = 2013 then revenue else 0 end) revenue2013,
sum(case when year = 2013 then qty else 0 end) qty2013
from yourtable
group by name
If you're using php you can display it however you want:
$table=mysqli_query($con,"
SELECT *
FROM table
");
echo "<table>
<tr>
<th>Name</th>
<th>Revenue2012</th>
<th>Qty2012</th>
<th>Revenue2013</th>
<th>Qty2013</th>
</tr>";
while($row = mysqli_fetch_array($table))
{
echo "<tr>";
echo "<td>". $row['Name'] . "</td>";
echo "<td>". $row['Revenue'] . $row['Year'] . "</td>";
echo "<td>". $row['Qty '] . "</td>";
echo "<td>". $row['Revenue'] . $row['Year'] . "</td>";
echo "<td>". $row['Qty '] . "</td>";
echo "</tr>";
}
echo "</table>";
Or whatever suits your needs.
Related
I have 3 sql tables and I want to make 1 table in html
The tables are:
Norm (norm_id, name, description, cluster_cluster_id, orden_orden_id)
Cluster (cluster_id, cluster_name)
Orden (orden_id, orden_name)
The table must contain:
norm_id - norm_name - norm - description - cluster_name - orden_name
I think i need to do this with a left outer join?
And how to show it in a table?
Right now i have
while($row = mysqli_fetch_array($result)){
echo "<tr>";
echo "<td>" . $row['norm_id'] . "</td>";
echo "<td>" . $row['norm_name'] . "</td>";
echo "<td>" . $row['description'] . "</td>";
echo "<td>" . $row['cluster_name'] . "</td>";
echo "<td>" . $row['orden_name'] . "</td>";
echo "</tr>";
}
You can make left outer join like, SELECT column-names
FROM table-name1 LEFT JOIN table-name2
ON column-name1 = column-name2
WHERE condition
I cannot figure out why this sql query isn't working and why it doesn't filter by the keyword coming from URL.
Here is my code:
include("menujednoty.php");
$hostname="localhost";
$username="kintrogorgo";
$password="password";
$keyword = $_GET['a.tovar'];
$db = "jednoty";
$dbh = new PDO("mysql:host=$hostname;dbname=$db", $username, $password);
foreach($dbh->query ('SELECT a.tovar ,
( select sum(b.kusy) from jednotypredaj as b where b.tovar=a.tovar and b.co="prijem" ) as prijem_ks,
( select sum(c.kusy) from jednotypredaj as c where c.tovar=a.tovar and c.co="predaj" ) as predaj_ks, kod
FROM jednotypredaj WHERE
(a.tovar LIKE '%$keyword%' ) as a GROUP BY a.tovar ORDER by a.tovar ASC') as $row)
{
echo "<tr>";
echo "<td>" . $row['tovar'] . "</td>";
echo "<td>" . $row['prijem_ks']. "</td>"; //Tu by mali bit predane kusy
echo "<td>" . $row['predaj_ks'] . "</td>";
echo "<td>" . $row['kod'] . "</td>";
echo "<td>" . ($row['predaj_ks']-$row['prijem_ks'] . "</td>");
echo "<td>" . (100/$row['prijem_ks']*$row['predaj_ks'] . "</td>");
echo '<td>Zobraziť</td>';
//echo '<td>In Development</td>';
//echo '<td>In Development 2</td>';
The quotes are breaking the SQL syntax, rewrite as a prepared statement to make it easier:
$stmt = $dbh->prepare('SELECT a.tovar ,
( select sum(b.kusy) from jednotypredaj as b
where b.tovar=a.tovar and b.co=:received ) as prijem_ks,
( select sum(c.kusy) from jednotypredaj as c
where c.tovar=a.tovar and c.co=:paid ) as predaj_ks, kod
FROM jednotypredaj WHERE
(a.tovar LIKE :keyword ) as a
GROUP BY a.tovar ORDER by a.tovar ASC');
$stmt->execute(array('received' => 'prijem','paid' => 'predaj','keyword' => $keyword));
foreach ($stmt as $row) {
echo "<tr>";
echo "<td>" . $row['tovar'] . "</td>";
...
Reconsider your SQL statement as you can either run correlated subqueries or conditional aggregates. Also, you table alias, a, was incorrectly positioned after WHERE clause:
Correlated subqueries (retains unit level records with kod column)
SELECT a.tovar,
(select sum(b.kusy) from jednotypredaj as b
where b.tovar=a.tovar and b.co='prijem') as prijem_ks,
(select sum(c.kusy) from jednotypredaj as c
where c.tovar=a.tovar and c.co='predaj') as predaj_ks,
a.kod
FROM jednotypredaj as a
WHERE (a.tovar LIKE '%$keyword%')
ORDER by a.tovar ASC
Conditional aggregates (group by aggregate records w/o kod unless added as a group)
SELECT a.tovar,
SUM(CASE WHEN a.co='prijem' THEN a.kusy ELSE NULL END) as prijem_ks,
SUM(CASE WHEN a.co='predaj' THEN a.kusy ELSE NULL END) as predaj_ks
FROM jednotypredaj as a
WHERE (a.tovar LIKE '%$keyword%')
GROUP BY a.tovar
ORDER by a.tovar ASC
MySQL may allow kod in SELECT clause and not in GROUP BY clause of aggregate query if your instance has the ONLY_FULL_GROUP_BY setting turned off but is not recommended and not ANSI-SQL compliant.
And as mentioned parameterize these queries in PHP script, binding string literals, that helps avoid quote handling and SQL injection.
The names im using can be changed or removed in the database at times, as it is now i have to change every name in the script when that happends. Can i print it out w/o a IF for example?
<?php
$sql = "SELECT detail,
SUM(IF(depot = 'Huvuddepån', quantity, 0)) AS Huvuddepån,
SUM(IF(depot = 'Uddevalla', quantity, 0)) AS Uddevalla,
SUM(IF(depot = 'Jönköping', quantity, 0)) AS Jönköping,
SUM(IF(depot = 'Polyeten', quantity, 0)) AS Polyeten,
SUM(IF(depot = 'Krackern', quantity, 0)) AS Krackern
FROM quantities
GROUP BY detail";
$result = $conn->query($sql);
echo "<table border='0' cellspacing='3' cellpadding='3'>";
echo "<tr>";
echo "<td width='300'>"."<b>Detalj</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Huvuddepån</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Uddevalla</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Jönköping</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Polyeten</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Krackern</b>"."</td>";
echo "</tr>";
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc())
{
echo "<tr>";
echo "<td>".$row["detail"]."</td>";
echo "<td align='center'>".$row["Huvuddepån"]."</td>";
echo "<td align='center'>".$row["Uddevalla"]."</td>";
echo "<td align='center'>".$row["Jönköping"]."</td>";
echo "<td align='center'>".$row["Polyeten"]."</td>";
echo "<td align='center'>".$row["Krackern"]."</td>";
echo "</tr>";
}
} else {
echo "0 results";
}
echo "</table>";
?>
What about this ? See sqlfiddle
SET #COLUMNS = NULL;
SELECT GROUP_CONCAT(
DISTINCT CONCAT(
'SUM(CASE WHEN depot = "',
depot,
'" THEN quantity ELSE 0 END) AS "',
depot,
'"'
)
) INTO #COLUMNS
FROM quantities;
SET #SQL = CONCAT(
'SELECT
detail,
',#COLUMNS,'
FROM
quantities
GROUP BY
detail'
);
PREPARE stmt FROM #SQL;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
It works with the following table :
CREATE TABLE quantities(
detail INT,
depot VARCHAR(20),
quantity INT
);
INSERT INTO quantities VALUES (1,"Huvuddepån",10);
INSERT INTO quantities VALUES (2,'Uddevalla',15);
INSERT INTO quantities VALUES (2,'Jönköping',20);
INSERT INTO quantities VALUES (3,'Polyeten',10);
INSERT INTO quantities VALUES (1,'Krackern',10);
INSERT INTO quantities VALUES (4,"fo'o6",10);
NOTE : Nevertheless, it will most likely break if one of your depot contains quotes ". If your data might contain such quotes, you should consider using REPLACE to replace those by \" in order to escape them.
The php code you should be using is the following one, I escaped the " in the sql because they weren't and I believe the problem came from here :
<?php
$sql = "SET #COLUMNS = NULL;
SELECT GROUP_CONCAT(
DISTINCT CONCAT(
'SUM(CASE WHEN depot = \"',
depot,
'\" THEN quantity ELSE 0 END) AS \"',
depot,
'\"'
)
) INTO #COLUMNS
FROM quantities;
SET #SQL = CONCAT(
'SELECT
detail,
',#COLUMNS,'
FROM
quantities
GROUP BY
detail'
);
PREPARE stmt FROM #SQL;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;";
$result = $conn->query($sql);
echo "<table border='0' cellspacing='3' cellpadding='3'>";
echo "<tr>";
echo "<td width='300'>"."<b>Detalj</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Huvuddepån</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Uddevalla</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Jönköping</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Polyeten</b>"."</td>";
echo "<td align='center' width='100'>"."<b>Krackern</b>"."</td>";
echo "</tr>";
if ($result->num_rows > 0) {
// output data of each row
while($row = $result->fetch_assoc())
{
echo "<tr>";
echo "<td>".$row["detail"]."</td>";
echo "<td align='center'>".$row["Huvuddepån"]."</td>";
echo "<td align='center'>".$row["Uddevalla"]."</td>";
echo "<td align='center'>".$row["Jönköping"]."</td>";
echo "<td align='center'>".$row["Polyeten"]."</td>";
echo "<td align='center'>".$row["Krackern"]."</td>";
echo "</tr>";
}
} else {
echo "0 results";
}
echo "</table>";
?>
I am trying to change the date format before it is displayed with SQL query however the date format is being completely ignored.
my code is
$query = "SELECT * , DATE_FORMAT(formatted, '%d/%m/%Y') from movies;";
then further down this is my table
echo "<table>"
echo "<table border='2'>"
echo "<tr>
<th>id</th>
<th>title</th>
<th>date</th>
</tr>";
while($row = mysql_fetch_array($query))
{
echo "<tr>";
echo "<td>" . $row['id'] . "</td>";
echo "<td>" . $row['title'] . "</td>";
echo "<td>" . $row['formatted'] . "</td>";
echo "</tr>";
}
echo "</table>";
?>
this query is working, however the date format is being ignored and just displaying the date in yyyy-mm-dd I want it in DD-MM-YY.
thanks
Use an alias to name your calculated column
SELECT * , DATE_FORMAT(datetime, '%d/%m/%Y') AS formatted_date
from movies
Use a different name than the existing column to differ between the two. Then use
echo "<td>" . $row['formatted_date'] . "</td>";
to get the formatted one.
You need to mention the alias for the formatted datetime column other wise formatted value will not be called in your code
SELECT * ,
DATE_FORMAT(`datetime`, '%d/%m/%Y') `datetime`
from movies
This question already has an answer here:
SQL Time exceeds
(1 answer)
Closed 9 years ago.
I've written a piece of code to calculate the waiting time for a patient as follows;
$query = "SELECT PatientID, Forename, Surname, Gender, Illness, Priority, Arrival_time, TIME_FORMAT(ABS(TIMEDIFF(CURTIME(), Arrival_time)),'%H hours') as Waiting_Time FROM Patient";
Which displays the following data:
PatientID Forename Surname Gender Illness Priority Waiting Time
625 Max Courts M non-urgent moderate 4 hours
As the example shows; the waiting time is 4 hours;
I need a piece of code to detect and alert when a time is MORE THAN 4 hours; to echo an alert.
Example code I've tried;
if $waitingtime == >4 hours
then echo "patient must be seen!"
EDIT FULL CODE
<?php
$conn = mysqli_connect("localhost","root","") or die ("No connection");
mysqli_select_db($conn, "a&e") or die('Could not select database.');
$query = "SELECT PatientID, Forename, Surname, Gender, Illness, Priority, Arrival_time, TIME_FORMAT(ABS(TIMEDIFF(CURTIME(), Arrival_time)),'%H hours') as Waiting_Time FROM Patient";
$result = mysqli_query($conn, $query) or die("Invalid query");
echo "<table border='1'>
<tr>
<th>PatientID</th>
<th>Forename</th>
<th>Surname</th>
<th>Gender</th>
<th>Illness</th>
<th>Priority</th>
<th>Waiting Time</th>
</tr>";
while ($row = $result->fetch_object()){
echo "<tr>
<td>" . $row->PatientID . "</td>
<td>" . $row->Forename . "</td>
<td>" . $row->Surname . "</td>
<td>" . $row->Gender . "</td>
<td>" . $row->Illness . "</td>
<td>" . $row->Priority . "</td>
<td>" . $row->Waiting_Time . "</td>
</tr>";
}
echo "</table>";
mysqli_close($conn);
?>
I'm using mysql_* for demonstation purposes. You should be using mysqli_* or PDO.
$query = "SELECT PatientID, Forename, Surname, Gender, Illness, Priority, Arrival_time, TIME_FORMAT(ABS(TIMEDIFF(CURTIME(), Arrival_time)),'%H') as Waiting_Time FROM Patient";
$result = mysql_query($query);
$row = mysql_fetch_assoc($result);
if ($row['Waiting_Time '] > 4)
{
echo "patient must be seen!"
}