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0
votes
1answer
31 views

Unknown column 'sitename' in 'where clause' [closed]

public function getSiteValues($value) { $this->db->select( 'site', 'id, option_name, option_value', NULL, 'option_name=' . $value ); // database, what ...
0
votes
0answers
865 views

How to make search faster in mysql DB with > 2m records, only numbers

I have a table with sim card data with over 2m-3m records. The design is a column sim_number = varchar(11) with data like number (0123456891) When the table is under 1m records it's still fast but ...
1
vote
1answer
121 views

Finding same values and updating rankings

thank you for taking the time to look at this. I have a simple table that I am trying to update based on the entries. table name is TOPUSER and there us a field called tu_total and tu_rank, I would ...
0
votes
0answers
46 views

making everything varchar on purpose, though some fields should be int

I'm writing a PHP website for some clients which parses excel, stores the value in a database and then retrieves them. Some fields are only integers, but the clients can't make up their minds, they ...
0
votes
3answers
38 views

Alternating usernames while connecting to mysql database

My server has a max_connections value of 400 and a max_user_connections of 250. Since I am always connecting with the same user name, my effective max_connections is 250 instead of 400. To solve this, ...
1
vote
3answers
65 views

Optimizing MySQL query with left joins

Ok, so first off i am going to provide a bit of information on the database structure I have 3 indexed tables that are used in this query (though one of them should probably be a weak entity, but ...
0
votes
0answers
859 views

Warning: mysqli::mysqli(): (HY000/1045): Access denied for user 'root'@'localhost' (using password: NO)

I am using MySQL with PHP for printing details from a database. I tried to make a new user, which was successful, although I get an error from MySQL when I tried to fetch data from it. It showed me ...
0
votes
1answer
106 views

What is the most efficient way to exclude records with a particular ID in a MySQL query for random records?

I have an api endpoint that returns X amount of random posts from a table called "posts". This endpoint is used by a mobile app. It retreives random posts by doing a SELECT COUNT(*) on the posts table ...
2
votes
0answers
376 views

Sync a local MySQL database and a live server MySQL database

I want to store data in my local MySQL database and after a time interval or when system connected to internet it will update my live MySQL database remotely. Is it possible? I have an inventory ...
1
vote
4answers
10k views

Insert if NOT EXISTS not working

I am trying to copy data from table to another mysql table from two different databases First I get all data from first table and stored them into php variable then I loop on that var to insert data ...
0
votes
2answers
219 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 ...
1
vote
0answers
169 views

How to send MySQL query results to outfile and standard output at the same time?

I "normally" query MySQL with SELECT col1, col2 FROM tablename LIMIT 10; and sometimes instead send the output to a file with SELECT col1, col2 FROM tablename LIMIT 10 INTO OUTFILE '/path/to/...
2
votes
2answers
1k views

SELECT and UPDATE in a single query while updating selective fields of duplicate records only

I have a MySQL table named Contacts_table with, say, the following contents: ID NUMBER NAME CITY 001 2222222222 John Doe Los Angeles 002 ...
0
votes
1answer
645 views

How do I perform a query on a dynamic list of tables?

I have a database named as ( conntrack ) with unknown amount of tables.I have a static table "tabidx" which has one column "date". The following table is static and its name is tabidx which provide ...
1
vote
2answers
74 views

professional services (consultants) resource allocation system

I am developing a resource allocation system using PHP and mysql. I have consultants and projects and I need to allocate the consultants on to various projects for various periods of time on various ...
0
votes
1answer
61 views

Storing small array of many possibilities

Let's say I need to store the text of a series of books, line per line in a database, and present them in a (CMS-based) website. I thought the correct setup would be: a 'library' table: containing ...
0
votes
1answer
581 views

Calculate total attendance for each workshop

I want to get overall attendance in each workshop. NumberOFWeeks column holds the number of weeks the workshop runs. for example Workshop 101 runs for 6 weeks meaning 6 days. So far I have done this ...
0
votes
1answer
108 views

replace in String from subquery

I'm currently (trying) to optimize veery weird code. So please don't teach me about bad DB design ;-). Assuming there are two tables messages and options In the messages table theres a string like "...
0
votes
1answer
42 views

combining two different record into single result

I am fetching data from 3 tables with the help of join. My output is in JSON format. Output in JSON format:- {"order_id":"2", "location_address":"Testing location Delhi", "emp_first_name":"**...
0
votes
0answers
248 views

difference between phpmyadmin and php PDO

I'm running a query in Phpmyadmin and also execute the same query with php PDO but results are not equal. What could be wrong ? This is query : SELECT dim_date_key as date ,dim_jdate_key as jdate, ...
1
vote
1answer
97 views

Hostgator php code error while creating a new database table

Error is Error creating database: Access denied for user ''@'localhost' to database 'my_db' Code is { <?php $link=mysql_connect ("localhost", "cpuser_dbuser", "password") or die ('I cannot ...
0
votes
0answers
47 views

Get disk usage information of mongodb database

I have a database built in MongoDB and I need to obtain information related to the disk usage of the database through PHP. I have searched a lot but did not find relevant search results for retrieving ...
0
votes
0answers
46 views

How to group two query that have already been grouped

I am creating a chat system and i have two queries: The first query selects the Max(id) meaning the last message that has been received or sent by the member that is connected and that has not yet ...
1
vote
1answer
263 views

Select with limit, get total count, optimize query [closed]

The site mimics the "likes" tooltip from Facebook, the only difference is that you can like or dislike the content. The tooltip shows the first 12 users that rated the content and displays the number ...
1
vote
0answers
468 views

PHPMyadmin transactions not commited [closed]

If I create a test table as the one below CREATE TABLE IF NOT EXISTS `TEST` ( `ID` int(11) NOT NULL AUTO_INCREMENT, `NOTE` varchar(50) NOT NULL, PRIMARY KEY (`ID`) ) ENGINE=InnoDB; and ...
1
vote
1answer
236 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
5k views

SQL error: Unknown column in 'where clause' [closed]

I have following very simple PHP MySQL Query: $sql = 'SELECT * FROM bundesland WHERE bkuerzel = ' . $_GET['q']; $result = mysql_query($sql, $con); When I execute the query with a click on a item ...
-1
votes
1answer
54 views

Query error int/varchar LEFTJOIN [closed]

Can someone tell me what´s wrong with this query? $sql = "select bans.id as banid, bans.type, bans.data, bans.reason, bans.expire, bans.added_by, bans.added_date, players.id as playerid, players....
0
votes
0answers
28 views

Big difference between id value [duplicate]

I have this database table where I insert multiple results during 1 action. In php I have a submit button when pressed, inserts 1-50 rows(depending on the user input). I've got a foreign key in this ...
1
vote
2answers
750 views

Mysql connect without username/password

I build a new website for a client (WordPress is underlying) and have access trough FTP to his webspace. He does not provide or even know more informations than this because he had taken it from an ...
0
votes
1answer
219 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. ...
1
vote
1answer
793 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 ...
1
vote
1answer
76 views

how to get a sorted result from mysql query?

I am trying to get a sorted result from a MySQL query and i dont have any idea of making the query. I have a example Mysql table as follows : id | cat_type 1 | free 2 | free ...
1
vote
1answer
189 views

Sql Insert into with duplicate key

Ok so, I'm still a beginner in databases. I have this code: $sql=" INSERT INTO complaints_members (password, complaint) VALUES ('$mypassword','$submit') ON DUPLICATE KEY UPDATE ...
0
votes
1answer
195 views

How to change a web application that now needs to become OLTP and OLAP application?

Previously, I did a simple web application for an enterprise client using PHP and MySQL. After some time, it has grown to a point where I realized after talking with people here that I need to treat ...
0
votes
1answer
39 views

What should be the structure for a person-to-person store database

I am going to create a person-to-person store with Laravel, a website whose users can share and sell their product or their mobile, TV, Computer, Shoes, Shirts, Books ,Cars, Bags, Animal etc. I am ...
1
vote
1answer
3k views

Transpose MySQL rows as column names - DYNAMIC

My goal is to be able to calculate the time difference between the ticket timestamp being created and closed and if reopened Add time from being reopened to closed again etc.. I have an existing mySQL ...
0
votes
1answer
19 views

Are my MongoDB servers right in setting?

I have a small web site, so I used two servers. A: master 4G Ram, 96G SSD B: slave 2G RAM, 96G SSD The B server is always for backup, no read, no write. In my application, many users can (and will) ...
-1
votes
0answers
184 views

.dbf files, windows 8.1 reading database [closed]

Good day everyone, At the office I have this accounting application that uses .dbf files to store it's internal database and we wanna do a new interface for it to check out what products are in stock ...
0
votes
0answers
1k views

Combine and display multiple row data with same column data in MySQL

I have a menu, from where every item ordered is stored in a row. For a single order, there can be multiple rows.What I want is that when I display it, for same order_number ( number) all rows data is ...
0
votes
0answers
16 views

custom product variant design [duplicate]

I'm building a custom eCommerce solution for a client. I came up with this database design: +---------------+ +---------------+ | PRODUCTS |-----< SKUS | +---------------+ +--...
0
votes
1answer
155 views

Hardening further mysql with sqlmap suggestion [closed]

I just ran this tool called sqlmap. It gave me this few list as below. sqlmap identified the following injection points with a total of 0 HTTP(s) requests: --- Parameter: ID (GET) Type: boolean-...
1
vote
1answer
148 views

mysql query from 1st domain and insert in 2nd domain

i have data in one of my website and i want to print these data in other site.these two are in same server.at present i have to export mysql data and import into other then do this code to insert in ...
1
vote
4answers
295 views

Pros and cons of a particular DB design approach for single vs multiple tables

I just got a new project (in JAVA) where I am thinking of all the pros and cons of a particular DB design approach. Some pointers: Our app has many "content" entities like News, Blogs, CMS pages, ...
0
votes
2answers
147 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
346 views

UPDATE & DELETE multiple rows with an array for the id

I wan't to check for challenges a user's team posted that have not been excepted after 1 day, then autorefund the user's team back there credits, and then also delete all the challenges. So far here ...
1
vote
1answer
995 views

How can one drop all default values and allow NULL for all columns of a table?

I'm working on a PHP script to modify the primary key (PK) of a table. My current code is: $q = "SHOW KEYS FROM $db.$table WHERE Key_name='PRIMARY';"; $keys = Query ( $q); if ( $keys) { $q = "...
1
vote
1answer
500 views

IF statement in ON clause

Can you help correct the syntax for this code? INNER JOIN Users u ON case when c.sender = ? then c.reciever = u.id else c.sender = u.id How do I do I put a CASE statement in a JOIN clause?
0
votes
1answer
38 views

DB/table design help [closed]

I have 50,000 unique cards in a table. A minimum of 2 cards and up to 20 cards can be chosen by the user and they can write a blurb about it. There will be times when the cards chosen by different ...
0
votes
0answers
14 views

Horribly slow MySQL (InnoDB) updates, multiple workers [duplicate]

I've created a PHP daemon that reads records from a MySQL InnoDB-table, analyses it and then updates the record. This process is spread between multiple workers (and servers) using Redis. However, ...