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 | I ran into a bit of a snag in my code, and I'm trying to make heads or tails as to whether this will work. From within my PHP script, can I write to a database using a MySQL connection in the middle of a transaction with a different connection? … |
 | A script that was working fine on 100 records per batch choked when I fed it 1,000 records. It gave: mysql.connector.errors.OperationalError: 1040 (08004): Too many connections So I went ahead and made sure to connect.close() everywhere that I opened a connection, and the script made it much further but eventually … |
| | Hello Gang! I'm grateful once again for the advice to use MySQL over Postgres. It's been a pretty smooth experience so far. Unfortunately I had to migrate to a different host and have been getting an undefined variable error. Mysql is Running. I used the package manager to get python-mysql.connector … |
| | Recently made a decision for an app I'm working on to accumulate data in batches AND THEN to insert it into the database with one statement rather than adding 1,000 records through one thousand separate inserts. Is this done better through file or memory? If I write the segments of …  |
| | Hey Gang! I'm hitting a point with my (python/mysql/linux) app for processing large amounts of network records where I need to make a design decision. I definitely want my app to have high performance. Because optimization as a skill set is so rare there is no reason not to employ … |
| | I was consistently receiving MySQL "Packets out of order" error messages when attempting to connect to MySQL, mostly on my AJAX pages, but I couldn't attribute it to anything or reproduce it in any way. I did notice, however, that when switching MySQL persistent connections from on to off, the … |
| | What are some ways to improve MySQL performance on queries against large tables that include the HAVING BY clause. It's my understanding that anything in there doesn't benefit from table indexes. |
| | Hey Gang! OK today I am having trouble with my transaction processing application implemented in python/MySQL. Here is some "working" testing code. import psycopg2 from psycopg2 import Error import binascii from binascii import unhexlify import mysql.connector as mysql sql='''CREATE PROCEDURE testprocedure(OUT tacos INT) BEGIN show tables; SET tacos := 1 … |
| | Hey! I've been asked to store some data from a client in mysql in an encoded format using python. Nothing could be easier, right? I will later need to decode the same data using mysql exclusively. Given that constraint, I thought that base64 would be the go to since nearly … |
| | Thank you for looking at this problem, details are all below. Below is the code <form style="overflow: hidden;" method="post"> <input type="checkbox" aria-label="Checkbox for following text input" name="kursus[]" value="<?php echo $row['IDKursus']; ?>"> <div class="d-flex justify-content-between mt-3"> <button type="submit" class="btn btn-success" name="daftar_kursus">Daftar Kursus</button> <button type="reset" class="btn btn-primary">Reset</button> </div> </form> if (isset($_REQUEST['daftar_kursus'])) { … |
| | Hi,This code creates a friendly link on user mentions in comments... However, it is not case sensitive and vice versa. Examples; @test works @Test doesn't work The regular expression takes both values. But the query is not catching. I figured it would be a case-sensitive collation on the database. But …  |
| | Hi,This code creates a friendly link on user mentions in comments... However, it is not case sensitive and vice versa. **Examples;** **@test** works **@Test** doesn't work What do I do? text = "@test @Test"; $pattern = "/\@(\w+)/"; preg_match_all($pattern,$text,$matches); if($matches){ $sql = "SELECT * FROM users WHERE username IN ('" .implode("','",$matches[1]). … |
| | i have 3 tables : users, deposit, withdraw **table users :** id , username, referral 1. 1, a1, null 2. 2, a2, a1 3. 3, a3, a2 4. 4, a4, a1 5. 5, a5, a2 **table deposit :** id, users_id, amount, status, approve_date 1. 1, 1, 10000.00, approve, 2022-10-01 14:52:53 … |
 | I am trying to insert into table with PHP and MySQL but the page only refresh it self when i press the button. I haven't done debugging, i have an IF statement that displays any errors that fires if the SQL query have errors. But the thing is even the … |
 | I want to make a pdf file in php. I write code like this: <?php require_once __DIR__ . '/vendor/autoload.php'; include('conn.php'); $res = mysqli_query($conn, "select * from smash"); if (mysqli_num_rows($res) > 0) { $html = '<table>'; $html = '<tr><td>ID</td><td>Name</td><td>FatherName</td><td>Address</td><td>Phone</td><td>Class</td><td>Qualification</td><td>Branch</td><td>rollno</td></tr>'; while ($row = mysqli_fetch_assoc($res)) { $html .= '<tr><td>' . $row['id'] . '</td><td>' …  |
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| | I want to auto generate the id number. I write this code. But it's not work. I don't make primary key for id in database. function getData() { $data = array(); $data[1] = $_POST['name']; $data[2] = $_POST['fname']; $data[3] = $_POST['address']; $data[4] = $_POST['phone']; $data[5] = $_POST['class']; $data[6] = $_POST['qualification']; $data[7] … |
| | Hello friends, I am new to this site, this is my first post, My question is.. How to calculate the one rows value for next row value? [code=sql]select @rownum:=@rownum+1 "sl.no", b.bus_activity_desc "Type",r.trn_no, o.Office_name,o.Address,o.Address2,o.Address3, DATE_FORMAT(r.trn_date,GET_FORMAT(DATE,'EUR')) as trn_date, l.Account_id , if(r.trn_type=6,r.total_trn_value,0) "Credit", if(r.trn_type=7,r.total_trn_value,0) "Debit", if(r.trn_type=6 ,@cbal:=(r.total_trn_value+@cbal),@cbal:=(@cbal-r.total_trn_value)) "Closing Balance" from(select @rownum:=0) s, office_master …  |
 | Hi ... how can i have url seo friendly from database ?? Example: localhost/myshop/product.php? id = 95 Or: https://www.myshop.it/product.php?id=95 I have done several tests with .htccess but it doesn't work. I would like to have as follows: https://www.myshop.it/product.php/shoes-armani Or: https://www.myshop.it/shoes-armani tbl_product +-------------+----------------+-----+----------------+ | p_id |p_name | p_name_friendly| +-------------+----------------------+----------------+ | 95| … |
| | I have a problem assigning position (number) based on the total marks. Here is the code. TQvm for your assistance the calculation is done perfectly, the ranking is shown correctly but with no numbers, 1, 2 ,3..... how to set autoincrement for this field (ranking) which is based on the …  |
| | I moved my website from host to another, moved database and public_html file, Also, I modified wp-config file and deleted hlaccess. But, now I can't update any plugin or delete there is message said update_option( 'siteurl', 'https://zone1on.com' ); update_option( 'home', 'https://zone1on.com' ); Skip to main contentSkip to toolbar At the … |
 | Hi all, I am working on a website that requires two queries from a table at the same time. They must select a row based on the id, and then another random one not including the row just selected. I currently have: $query = $pdo->prepare('SELECT title, content FROM cards WHERE … |
| | I need help for my code after the user done register for their new account in my system. Here is the verification link that the user will receive via email for him/her to verified the email: `http://localhost/staff/email_verification.php?activation_code=49024f2e7b8c05dc1g66005g780g6060 ` But, when the user click on above link, I notice based on … |
| | Hello, I want to use the checkbox to update the status of a row in mysql using php. If it is checked and submitted, the status will change from 'collect' to 'received'. I tried many ways but I am not sure where the problem is :( please help! <?php include(config.php); … |
| | I have the following table: my_contacts which contains the following columns: [CODE]contact_id INT NOT NULL AUTO_INCREMENT PRIMARY KEY, frist_name VARCHAR(20), interest VARCHAR(20)[/CODE] [CODE]-----------+-----------+---------- contact_id | fisrt_name | interest + ---------------------------------- 1 | smith | swim + 2 | mark | dance + ----------------------------------[/CODE] I need to move the interests column … |
| | I have a snippet that inserts data in a row in a MySql database. If that data already exists the existing row should be updated. In my case, I continue to get insert only. What is wrong with this snippet? $page = basename($_SERVER['SCRIPT_NAME']); $ip_address = $_SERVER['REMOTE_ADDR']; include_once("includes/connection.php"); $sql=mysqli_query($con, "SELECT visits … |
| | Hi, This might be a simple question, but I have an affiliate site that I want to drive traffic to, and the traffic will be coming from various sources. All I want to know is that I got the traffic count that is being contracted for from each source... My … |
| | Using PHP / MySQL This is a sort of long explanation, but trying to provide all the information the first time. Hopefully someone can tell me what I’m missing or doing wrong, without too much criticism. I am trying to create a FUNCTION that I can use to retrieve a … |
 | ERROR 1054 (42S22): Unknown column 'Firstname' in 'field list' I'M gettin the above error when I enter: mysql> insert into people (fname, lname) -> VALUES (Firstname, Lastname); Here's the table: mysql> desc people; +-------------+-------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------------+-------------+------+-----+---------+-------+ | fname … |
| | Hi all, I have been confusing myself for days over this so bear with me if it gets a bit confusing. I have a table called tags with columns id, name which list all unique tags (linux, php, mysql, etc.). And I have an array that includes some tags that …  |
| | please if anyone could tell me, how it would be possible, i want to save the content of a uploaded word document in database field with php, no problem with encrypted file like ( ´V z2Ö<Ö<ôÿÿÿÿÿÿ·üü?????ÿÿÿÿSSS8‹DÏLS¥9à1) as it shows if you open a word document in a browser. just want … |
| | Hi all I'm trying to put together a room hire site, to be used by the lettings clerks, for our local Quaker meeting house and I've hit a couple of problems. I have an HTML form that, using data from a MySQL database and some JSON and JavaScript, when a … |
 | I'm trying to create a trigger that does two things, first take an ip that's in dot notation and run inet_aton on it and put the result in another field. Second, checks a lookup table to identify an ip range that the result of the first action falls into and … |
| | I'm creating a report page and can't figure out how to convert the array (row) to just get the ip_address. I'm a newbie to php and can't figure out how to accomplish this. Here's the code that I have so far: <?php $filename = NULL; session_start(); // start of script … |
| | Hi everybody. I'm trying to print all sub-category items using my own defined PHP function. The purpose of this function is to print all items, which parent value is $parent. There is some thing wrong with this function why it doesn't show information as I wish. To make you understand … |
| | How can i check if email exists i have this code but it is not working <?php include "Config.php"; function mksafe($data){ $data=trim($data); $data=strip_tags($data); $data=htmlspecialchars($data); $data=addslashes( $data); return $data; } $fname = mksafe($_POST["fname"]); $lname = mksafe($_POST["lname"]); $email = mksafe($_POST["email"]); $sql = "SELECT * FROM `users` WHERE `email`=$email"; $result = $conn->query($sql); if($result->num_rows … |
| | I've just started working with PHP and MySQL, and I'm trying to create a table in MySQL. If I've got this right, I'm trying to do so by going to my host's SQL MyAdmin page and typing in mysql_query("CREATE TABLE example( id INT NOT NULL AUTO_INCREMENT, PRIMARY KEY(id), name VARCHAR(30), … |
| | I have Apache2, php 7.2, and mysql installed. At the top of my index.php I have the following script: <?php session_start(); // start of script every time. // setup a path for all of your canned php scripts $php_scripts = '/home/larry/web/test/php/'; // a folder above the web accessible tree // …  |
| | [B]Mysql - How to use UPDATE with SELECT???[/B] I have two tables: [B]1) products_category[/B] -cat_id -cat_name [B]2) related_category[/B] -rel_cat_id (exaclty same as products_category.cat_id==related_category.rel_cat_id) -rel_cat_name [B]products_category table[/B] [IMG]http://www.ephpsolutions.com/scud/rrr/product_category.gif[/IMG] [B]related_category table[/B] [IMG]http://www.ephpsolutions.com/scud/rrr/related_category.gif[/IMG] I want to get cat_name from products_category and want to store in rel_cat_name in related_category tabel. and the query should … |
| | Hello all. I have a funtion in MYSQL to substruct days from a date. This function seamsto work but some dates it times out. This is my function CREATE DEFINER=`root`@`localhost` FUNCTION `Calculater`(intrval int, req date) RETURNS date DETERMINISTIC BEGIN declare calculated date; declare added int default 0; Lbl_Loop: Loop IF … |
| | Hello guys, i've the following table in database : IdCity int CityName nvarchar(20) it has the data like this in it : IdCity CityName 1 Абакан 2 Азов 3 Александров 4 Алексин 5 Альметьевск 6 Анапа when i try to run the following view SELECT IdCity, CityName FROM dbo.City WHERE …  |
| | Hi all at Daniweb, I'm quite new to PHP and I'm banging my head over this... query 1 WORKS: **$query = "CALL procedure_is_a_great_way_to_let_db_do_some_work('1','6')";** //both 1 and 6 are IN parameters! query 2 DOESN'T WORK: $id_pictures = 1; $id_names = 6; **$query = "CALL procedure_is_a_great_way_to_let_db_do_some_work('".$id_pictures."','".$id_names."')";** //both 1 and 6 are IN … |
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| | Hello, I'm quite nub in web development, so be gentle please. If this place is wrong for such problems point me to a more appropriate resource please. To became more familiar with web-programming I found good (as I thought) area for self-improvement. One of my friends owns web project. This … |
| | I am using bootstrap modals, when i query to populate a dropdown to fill in to my form, my query is show all but the first record and i can't figure out why. My form looks like this <div class="form-group"> <label for="deptcode">Department</label> <select class="form-control" id="deptcode" name="deptcode" value="<?php echo $mem['deptcode'];?>" <?php … |
| | I am working on an app where a user registers and its passed to the server where there information is added to the database. It passes various checks along the way but ails to add the user. Code below: <?php $con = mysqli_connect('localhost', 'root', 'root', 'eat4lessaccess'); //check connection if(mysqli_connect_errno()) { … |
 | I need help on a new problem. On my women’s golf club web site I have a Members Directory page which consists of a table, 5 columns in width, and enough 2 rows sets to hold the members photo in the odd numbered rows with the members name in the …  |
 | Here is a basic question, what is the fastest way to transfer a MySQL database? Here are the variables at play: 1) Database is just shy of 3GB 2) Transfer is between two servers running different versions of MySQL 3) There will not be usage of the database during transfer, … |
| | I have table i wish to count how many times a value appears in all column the table structure id Subject1 Subject1score subject1grade Subject2 Subject2score subject2grade 1 English 100 A Mathematics 100 C HERES MY PREVIOUSLY TRIED CODE <?php $subject1grade='A'; $subject2grade='A'; $subject3grade='B'; $a=array("$subject1grade","$subject2grade","$subject3grade"); print_r(array_count_values($a)); ?> THE RESULT Array ( [A] …  |
| | $strSPQuery = "SELECT * FROM `san_pham` where ma_san_pham=".$arrMa[$i]; $resultSp= mysqli_query($conn,$strSPQuery); $rowsp = mysqli_fetch_array($resultSp); $tong += $rowsp["gia"]*$arrSl[$i]; |
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