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-3
votes
0answers
40 views

Get user rankings based on points from database [on hold]

I've created a website where members collect points to get a reward at the end of the contest. I want to create a page that shows the top 10 members who have the most points. I've tried a few pieces ...
2
votes
0answers
46 views

Database design for auto-incrementing, grouped, unique hashes?

I've come up with a (hopefully) better way to save unique company data, which now consists of unique hashes for each entity. Basically, there are multiple hashes associated with a company: hash1: ABC ...
1
vote
1answer
751 views

MySQL: SELECT GET_LOCK slow/timeout

I am using "Zebra Session" as a replacement for PHP's built-in session management. Zebra Session stores sessions in a MySQL database, and uses "session locking" in order to ensure that data is ...
0
votes
1answer
119 views

Moving data from one table (a million records in it) data to another table which in remote location? (MySQL)

I want to move data from one table which have more than 2 million records in size into another table which is in a remote machine, and that moving should support Logging Restart Exception handling ...
0
votes
0answers
24 views

count rows that has same values from 2 different tables mysql php [on hold]

Let's say that I have 2 tables, one of them is called table1 and the second table is called table2. in each table i have 6 columns that has the same name. Table1: Columns: one|two|three|four|five|...
1
vote
1answer
127 views

Efficient workflow/queries to save unique information?

I am saving company information in a database. There is a single table with an auto-incrementing key that is unique to each company. There are separate tables for emails, websites, phone numbers, and ...
-1
votes
1answer
28 views

Server Specifications for Web Application [on hold]

I am trying to select the configuration for a web application built in PHP 5.5 and MySQL 5.1. I will also be deploying PHPmyAdmin for the MySQL database. Both the web application and the database will ...
0
votes
1answer
18 views

Do dormant databases impact server performance?

On our web server, my team has been creating new databases in MySQL to manage backups. They simply create new database_DATE and copy over our live site. Which made me think today... Can having a ...
0
votes
2answers
5k views

query to select data between todays date as well as tomorrows date time upto specific time

I have database "raj" with table "pagination" In table pagination have "id", "actualtime" and "created" field id - auto_increment name- varchar created- datetime I want to display all rows which is ...
0
votes
1answer
244 views

Can I split mysql the search results into two tables in php?

I have index tables with multiple columns: s | s1 | s2 | s3 | s4 | s5 | s6 | s7 | s8 | s9 | s10 | s11 | s12 | ------------------------------------------------------------------- 0 | 1 | 0 | 1 | 1 ...
0
votes
1answer
297 views

How to use explode mysql function in where condition with cakephp

I am using cakephp 2.6. I have payment_method fields in mysql table which store the values like 54,52,59,57 . Now my question is that how can i check if new posted payment method id is available in ...
0
votes
3answers
121 views

How do I echo data from two tables that are associated to one user in php

Say I have tbl_company with these cid------- cons_no-------- company_name ------- phone ------ address 1---------- q1----------------aple------------------------22222-------newyork 2 ------...
0
votes
1answer
202 views

MySQL taking significantly longer to query via PHP than CLI

TL;DR: I have a query that takes under a second to run via MySQL's CLI, but over 12 minutes via PHP and I'm at a total loss on what to check next. It's a fairly horrid query, full of joins, but the ...
2
votes
2answers
298 views

MYSQL joining 3 tables with left join

I have these tables: pupils: (id_pupil, name, surname, email, user, pass, level, class) incidents: (id_incidents, date, time, type_incident, comments, id_pupil, id_user, subject, id_trimester) ...
-1
votes
0answers
19 views

When to use different databases for social network site? [closed]

For a social network site that wants to expand to the size of facebook, what database do you suggest using at what time? for example, should messaging use mongodb or mysql? when should redis be used? ...
0
votes
2answers
418 views

How to select different format of the date in mysql

0 down vote favorite. I have this table and I can't change its format to yyyy-mm-dd because I have so many scripts that are related to this format dd-mm-yyyy. It would be a mess if I change its ...
8
votes
1answer
44k views

How to get rid of “maximum user connections” error ?

I am using MySQLi for my webapp but whenever I want to visit some particular page, I get mysqli_connect() [function.mysqli-connect]: (42000/1203): User ***_user already has more than '...
1
vote
1answer
212 views

Best practice to create a database schema for Open Auth (Social logins)

I've done a database schema for user management alongs with their roles and permissions. The problem actually began, when I decide to integrate a multiple "Open Auths" such as Facebook Login, Google ...
1
vote
1answer
198 views

How to update a whole document in MongoDB using PHP?

I want to update my older entries through the PHP interface in MongoDB. First, I get data from the text fields and then store that into variables. Then I use those variables to update data in Mongodb. ...
0
votes
0answers
16 views

php mysql insert time

I am getting time values from another application in this sample format "2016-12-25 13:43:15" but when they get to my database they change to "0000-00-00 00:00:00" for the date am using DATETIME mysql ...
0
votes
2answers
2k views

No connection could be made because the target machine actively refused it

I have created a PHP site using MySQL. It works well on localhost. However, when I moved it to a remote server, it stopped working. The error shown is: "No connection could be made because the ...
0
votes
1answer
145 views

Delete duplicate with same ID PHP/PDO/MYSQL

I'm new to databases and I need your help I'm working on a website and I have few problems. I'm using PDO. There is a user table, with unique ID, name and password. User enters his username and ...
2
votes
1answer
105 views

Strange Garbage Character in SQL server database like ÂÃÂÃÂÃÂÃÂÃÂÃÂÃ [closed]

I am using HTMLBOX editor for getting Notes/RichText Data input from User. I found there are lot of garbage characters in my database and they keep on doubling on each time user save/update notes. ...
1
vote
0answers
26 views

How to compare three columns on WHERE condition? [closed]

I need to compare three columns in a single table. Please help me clarify this problem. $pro_qry1 = "SELECT * FROM orders WHERE customer_id ='$id' AND item_id='$pro_id' AND status='0'"; $pro_run1 = ...
0
votes
1answer
34 views

Mysql/pivot table for two tables

I was trying to get multiple rows into single row with dynamic columns created as per the data.i have two tables combined with foreign key.here is my data follows table 1: | id | name | Invoice value ...
0
votes
1answer
216 views

Suitable schema to record email sent and response received and invoicing in DB

When a form submission is made on a website: An email with form's details is sent to a set of recipients email addresses stored in a DB. The email contains a link for the recipient to show interest. ...
7
votes
2answers
19k views

Server requested authentication method unknown to the client [mysql_old_password]

Warning: PDO::__construct(): The server requested authentication method unknown to the client [mysql_old_password] SQLSTATE[HY000] [2054] The server requested authentication method unknown to the ...
0
votes
2answers
202 views

Best configuration for MySQL? InnoDB and MyISAM

I read that InnoDB is supposed to be better at writing into MySQL than MyISAM, however, I'm trying it out, by running 3000 MySQL queries(Inserting rows, 8 Columns + id)... but results haven't turned ...
0
votes
2answers
152 views

mysql too many connections in linux/nginx/php-fpm/php server

One of my mysql client reports "too many connections" of the mysql server. With the processlist of the mysql server, I find many connections come from a client with LNMP(linux nginx mysql php). The ...
0
votes
0answers
17 views

find unique value from a list & sum & count their existing required value

1) I have a table named "plan_info_upload" which is like: site_id site_name 2G_bw 3G_bw route_path 1 MBCGP1 11 30 MBLMA1>MBSMGR 2 BOPBG2 12 22 ...
1
vote
2answers
606 views

Update table from calculated temporary table

I have two tables, one containing a set of user ID's, vote direction (-1 or 1) and ID of the object they voted on (casted votes table). In the other table, the object id, upvotes, downvotes and ...
0
votes
1answer
47 views

Searching a text with space in mySql match against Query

I want to search a text in mysql DB with [space] (Ascii 32) as a part of it. But I am not getting the correct result. My MySql Query is: SELECT count(id) as total , MIN(product_price) as ...
-5
votes
1answer
54 views

Could someone explain how PHP, MySQL, SQL work together? [closed]

I feel so confused on what they are and how they work. From what I've read PHP is a server-side language. Therefore, it's a language basically designed to talk with the web server to get it to do ...
0
votes
1answer
503 views

How to check mysql password change and other events logs

Recently someone change my phpmyadmin password and drop database I think it was sql injecting. Now I want to find information about this like when, how and who change my password Please tell me ...
0
votes
1answer
146 views

Error code 1064 when trying to add anything manually

So i tried adding via php and i noticed i got a error , so i went into phpmyadmin and tried adding it manually by clicking the SQL in phpmyadmin and write in INSERT INTO `test`(`IDtest`, `...
0
votes
0answers
33 views

Updating rows in multiple different tables using JOIN

Following is my MySQL SELECT query and it works. SELECT candidates.CandidateName, candidates.CandidateVotes, candidates.Party, candidates.win, candidates.NameOrder, ...
1
vote
1answer
56 views

Different types of users in one table, How to add data off different users

I have 5 type of users: Super Admin Coordinator Supervisor Student External Examiner All of them have some common attributes like ID, name, email etc. I have inserted them in one table user ...
0
votes
2answers
43 views

Encrypting a Database row-by-row

I have a large database (millions of rows in hundreds of tables) that contains sensitive data (Think SSNs, account numbers, etc). I am tasked with safeguarding the data and have chosen to encrypt only ...
2
votes
1answer
53 views

Prevent duplicate entries

I have log in form with Username and Password. $con=mysqli_connect(LOGINDETAILS); /*if (!$con) { die("Can not connect: " . mysql_error()); } */ $Username = $_POST['Username']; $pswd = $_POST['pswd'...
1
vote
1answer
372 views

Quickly establishing if a remote MySQL connection is valid using PHP

I have a hosted website (Namecheap Pro shared hosting) that connects to a remote MySQL database using a read-only user privilege. This remote DB is updated by a separate system. The website works ...
1
vote
1answer
387 views

compare results between two select queries mysql

i'm making test application where users will input their select queries in input box and the application have to compare them if they are identical with "correct answer" query. "Correct answer" query ...
0
votes
0answers
27 views

Two -way replication on the same server

I have an ubuntu server, and I have a mysql with two database. I want to sync these two database (Two way replication) either via php or command line. I have searched a lot, but I cant find something. ...
1
vote
1answer
234 views

PHP / MYSQL connection failures via socket under moderate load

I've done quite a bit of reading before asking this, so let me preface by saying I am not running out of connections, or memory, or cpu, and from what I can tell, I am not running out of file ...
0
votes
1answer
48 views

Database convert character_set_server latin1 to utf8

I am writing about a problem on the character encoding that i have on my site with Magento. In practice, the special characters do not take utf8 and gives me the classic non-coded characters: Ã. ...
0
votes
1answer
63 views

Slow search by LIKE and other values (1 million rows+)

I'm currently developing a kind of search website where one can search for business companies in my country. The database table has 1 million rows and quite a few colums (42 columns). But I find it ...
-3
votes
1answer
14 views

Fetch data from three tables two tables have one same column [closed]

I have three tables a,b,c table a sender status type name1 approved one name1 approved one name1 approved two name2 pending one table b sender p_id name1 ...
0
votes
2answers
141 views

SQL Query Help to get Quiz statistics

I'm coding a quiz web application and i need help. I've got three tables Nicknames : |USER_ID|NICKNAME| that stores USER_ID(auto increment) and NICKNAME registered to my system. Questions : |...
0
votes
0answers
14 views

Database design advice for user access to certain options

I'm creating simple management system where I have 4 types of user access i.e. different permissions. I have created table users where I store each user and each user has user_role column where I ...