There’s no real hard limit. It will all depend on a number of factors; including the profile of your db traffic, the resources available to your db, your db architecture (replicated/distributed etc), your schema, your app design, network connectivity, your user’s expectations. The best thing to do would be to have an idea of what … Read more
You need to use a other array. <?php $lender = mysql_query(“Select * from lender where reference=”$reference””); $formated_lender = array(); while ($lenderrow=mysql_fetch_array($lender)) { $formated_lender = $lenderrow[“lender”] . ” ” . $lenderrow[“lenderref”] . ” ” . “£” . $lenderrow[“amount”]; } foreach ($formated_lender as $row) { echo $row . ‘<br />’; } Or, if you would just one … Read more
In order to compute aggregate values you have to use GROUP BY SELECT EXTRACT(YEAR_MONTH FROM `date`) AS year_month, COUNT(*) AS cnt FROM tableName WHERE `status` = ‘sold’ GROUP BY EXTRACT(YEAR_MONTH FROM `date`) Keep in mind that, because of the function EXTRACT() used in the GROUP BY clause, MySQL cannot use an index to optimize the … Read more
You need PHP for this first you have to connect PHP with your db $connection = mysqli_connect(“YourHost”,”user”,”password”,”dbName”) or die(‘connection to DB failed’); then you need a query to get the team names $query = mysqli_query($connection,”SELECT team FROM s1″); now you need a array to save the DB values $row = mysqli_fetch_array($query,MYSQLI_NUM); the connection to the … Read more
got it. Your PHP code to increse your counter is: <?php $servername = “localhost”; $username = “root”; $password = “”; $db_name = “route”; // Create connection $mysqli = new mysqli($servername, $username, $password, $db_name); // Check connection if ($mysqli->connect_error) { die(“Connection failed: ” . $mysqli->connect_error); } $sql = “UPDATE quizes SET count = count + 1 … Read more
You don’t need * in this statement. $sql= “delete from mytable where first=”” or second=” or third=””; solved delete using where and or
Just read errors and correct it.. <?php $server2 = ‘192.168.1.211’; $con = mysqli_connect($server2,’root’,’password’,’vvani’); // here, $server2 is variable, not constant if (mysqli_connect_errno()) { echo “Failed to connect to MySQL: ” . mysqli_connect_error(); } 2 solved I want to access another server database in PHP
Here’s a query that will include the row for today and the rows for the last three days: SELECT * FROM ALLRESULTDATA WHERE `date` = CURDATE() OR `date` >= DATE_ADD(CURDATE(), INTERVAL -3 DAY) ORDER BY `date` DESC LIMIT 4 SQL Fiddle: http://sqlfiddle.com/#!9/88561/3 I think you also mean to only include the result for today if … Read more
In addition to what @Niet Suggested you have to know that you cannot reuse the same name for the placeholder like you did: INSERT INTO veranstaltung_anfrage (….) VALUES (..:a, :a, :a, :a, :a, :a, :a) You will need to give them unique names: INSERT INTO veranstaltung_anfrage (….) VALUES (..:a1, :a2, :a3, :a4, :a5….) then bind … Read more
I am trying to create a sql table in phpmyadmin, I’m getting 4 errors. This code works in phpmyadmin on my pc at my work but not on the pc at home [closed] solved I am trying to create a sql table in phpmyadmin, I’m getting 4 errors. This code works in phpmyadmin on my … Read more
You need to use a like and concatenate a wildcard on the column value. Something like: select * from table where ? like concat(‘%’, mobile) I think will do it. 3 solved How to match column value from right using PHP and MySQL
You can use inner join to get price for each product in orders table: Select o.customer_id, p.product_id, o.quantity, p.price from PRICES p inner join ORDERS o on p.product_id=o.product_id solved How to join each order with its price? [closed]
what is the best way to do this ? Keep all the data in a single table. Databases are intended to store data. Even more data than you an imagine. Just add date field tho the table and you’ll be able to filter out your records by month – you just need to learn a … Read more
with DB query fetch the values so that you get something like $blacklist = array(’18:00′,’19:00′) check for time being black-listed with if(!in_array(’18:00′, $blacklist)){…} if you have white-listed values as array, and you don’t want to check in viewing part, then its better to use array_diff as @YaK answered solved Print all times, except the ones … Read more
Indeed, that’s the way sessions typically work. Once a page is loaded, there’s no connection between the browser and the server anymore. Basically, once a page has finished loading and is just sitting there in the browser, it’s already the same as if the user had closed the window. There’s no way to 100% reliably … Read more