Professional Hypertext Preprocessor, a widely used platform for dynamic web applications.
1
vote
0answers
25 views
Repeated values in group_concat
I have two tables, first the table food and Second is Activity:
INSERT INTO food
(`id`, `foodName`)
VALUES
(1, 'food1'),
(2, 'food2'),
(3, 'food3'),
(4, 'food4'),
(5, ...
3
votes
1answer
53 views
Get data from two tables with recursive relationships
I have a MySQL 5.1 DB, being used behind a PHP application to track permissions and other items that need to be issued to staff that hold various positions within an org. To track what privileges a ...
1
vote
1answer
33 views
Getting the data from a foreign key table
I have a table that relates a user to client using both their table id's
UsersClients Table
---------------------
| userid | clientid |
---------------------
| 2 | 32 |
| 3 ...
0
votes
1answer
32 views
Memcache implementation
I have a Wordpress site that uses WP Super Cache plugin in order to make my blog posts and pages stay as HTML so that less PHP/MySQL code is executed. However, there's a featured box that can't get ...
0
votes
1answer
54 views
good practices of creating tables in mysql [closed]
Hi I was thinking of developing an web apllication using php and mysql.
Application will give a professor the required data about the student.
i want to design application considering Engineering ...
0
votes
1answer
53 views
Zip based search in mysql.
I want to implement a zip based search in mysql database, I am populating the location column in my database based on a drop-down where in I have predefined zip codes, now if a user wants to search ...
0
votes
0answers
25 views
Connector Table Hash Values using alias
I am designing a system which stores certain hash values to represent certain pieces of text for example.
Each hash value can represent more than one text file.
I have 4 tables being the ...
0
votes
0answers
40 views
Database Schema/Structure advice
Well i am reconstructing an already created application and was looking to improve this, especially with in the database structure.
I want to start off with probably the biggest section and that is ...
0
votes
1answer
78 views
how to use mysql to delete only the first ten table records?
I'm currently using php and mysql together. What I want to try is if I have ten "stable" records for the database and in the same .php file I have some text boxes so I can type in then what I typed ...
0
votes
1answer
75 views
Mysql - Problem speed of access on query (Low latency query sometime)
My web application is real time site that need a speed of access on every query (SELECT, UPDATE, INSERT) that must less than 200ms
Because one of my php script task is query (SELECT, UPDATE, INSERT) ...
0
votes
1answer
74 views
Large queries on MyISAM tables crashing MySQL
I have a PHP website, which is using the third-party software ResourceSpace, that when I installed it, it used my default storage engine to create the tables, which at the time was MyISAM. Now that ...
1
vote
1answer
51 views
Why does that query cause lock wait timeouts?
From time to time, I find a lot of these errors in my PHP error log:
MYSQL.1213: Deadlock found when trying to get lock; try restarting transactionSQL
The problem persists for about 2 or 3 minutes. ...
2
votes
3answers
67 views
Implementing soft delete
Could someone please show or describe to me how to implement soft deletes?
I have table of vouchers with these fields: id, username, password, serial.
I want to display a given number of rows ...
4
votes
1answer
92 views
mysql_connect() system error :111
I have 2 VPS.
I would like to connect from the frist to the second's mysql db like this :
$db = mysql_connect("94.xxx.xxx.xxx:222", "user", "pass");
I got this error:
Warning: ...
0
votes
1answer
44 views
Making a message system
I have created a messaging system with MySQL structure is as follows
`message_id` int(11) NOT NULL AUTO_INCREMENT,
`message_from` int(11) NOT NULL,
`message_to` int(11) NOT NULL,
...
-1
votes
1answer
38 views
Displaying one row at a time with no repitition [closed]
I have a database full of data. I would like to display one row from the database at time because the information in the database is confidential hence only one result can be seen at time, and that ...
0
votes
1answer
51 views
syntax error within php script sql statement [closed]
I am getting this error when I execute this script:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'table) ...
-1
votes
1answer
102 views
“ToDo” - List web application (Codeigniter) - Database Suggestions [closed]
I have to make a simple "ToDo"-Application, based on PHP and MySQL. I use CodeIgniter as framework.
I wanna do the following things:
Create ToDos
Show ToDos
Complete ToDos
Repeating Todos
I don't ...
0
votes
0answers
118 views
PHP - Binding results of an mysqli query to an associative array
I'm trying to retrieve the results of a query using mysqli and put them into an associative array. After searching online I found this post:
...
0
votes
1answer
35 views
Setting up a use voting table
I had a table to store user votes for other users. So user1 can vote for user2 (vote up or vote down). One user should be able to vote for many users, but not repeatedly to the same user; user1 can ...
0
votes
1answer
118 views
Problem with (not) Locking Tables during Restore
First time here in DBA. I'm working to create a simple and strong database backup plan. My solution that is already working to create a gzipped, encrypted backup is:
$string = "mysqldump -u$db_user ...
0
votes
1answer
36 views
Using multiple server databases
I was just seeking some higher advice on whether or not having your main data on one database, then having separate server database to use for frequent updating and reading will prove to be an ...
1
vote
0answers
42 views
mysql remote connect
Having troubles with this and I'm not sure why..
I'm trying to access a mysql database from another server.
I changed the my.cnf file (uncommented the bind-address to access from all):
port=3306
...
0
votes
1answer
57 views
PHP and mySQL - Binding a parameter in an if statement
Setup:
I have 4 tables:
guestList
eventList
inviteList
rsvpList
The descriptions of the tables:
guestList
+-----------+-------------+------+-----+---------+----------------+
| Field | Type ...
0
votes
0answers
17 views
Unable to set 'NULL' in union query (consisting of two joins) in Zend for a field name [closed]
I have 2 join queries. I need to union them together. Both of the join queries have a new field say 'str_type'.
I need to make this NULL at for one join and some value in other join which is not ...
0
votes
0answers
99 views
MySQL Left Join Select all rows
Hi guys I have a query which is pulling data from database :
SELECT sandwich_table.id,
`sandwich_name`,
salad,
COUNT(salad),
salad_type.type,
...
0
votes
0answers
70 views
Try to find a match using SUBSTRING(SHA1(value)), 0, 6)
I have a tbl where all entries for companies that participate in a online project are saved. This table is named "business". Those companies can use their employess to access the online platform i 've ...
1
vote
1answer
960 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 ...
1
vote
3answers
617 views
How can I copy data from one MySQL server to another based on a SELECT statement (then delete the data from the original)?
I have a very large log table from which I want to copy rows, putting them into the same table structure on a new server. I don't want to copy everything, only old rows, so that the table on the main ...
2
votes
1answer
212 views
Mysql - show results from 3 tables excluding NULL or EMPTY values for certain fields
I have 3 simple tables with polls, users and votes. I'd like to show all polls ordered by clean count of votes (sometimes either poll_id or user_id don't get inserted).
Furthermore I'd like to show ...
0
votes
1answer
586 views
Connect Error (2054) - mysql_old_password issue still not solved
i use php 5.4.3 and i want to connect to a MySQL DB remotely (php script resides on a different server than the db) with normal oop way:
$mysqli = new mysqli(DB_HOST, DB_USER, DB_PASS, DB_NAME);
...
0
votes
0answers
84 views
Does codeigniter support conditional insert? [closed]
I need to check a condition before inserting a row into the table. Is it possible in codeigniter?
1
vote
1answer
87 views
MySqli - select from db based on time difference with CURTIME() or SUBTIME()
I have a db with some customers data. There I store their last login time as datetime.
I want to run a cron php script every min which will query mysqli for their last login datetime and if that was ...
1
vote
3answers
152 views
MySQL large databases, unique index effect on efficiency?
I'm working on a table which holds around 300k records. I'm using a 3 columns unique index to prevent duplicate records. For some reason the database is taking long to insert new rows.
I have a few ...
0
votes
1answer
51 views
MySQL collate error occurs when sent by PHP app but does not occur in phpMyAdmin
I have a query that uses:
t3.`value` LIKE "%someval%" COLLATE utf8_general_ci
I load the page in my browser and get this error printed to the screen:
COLLATION 'utf8_general_ci' is not valid for ...
2
votes
1answer
170 views
Parsing and binding variables for SELECT .. WHERE column IN ( .. ) queries
I'm looking to make sure that all queries in a php web application have proper use of bind variables to minimize parsing of the queries.
I'm wondering how Oracle parses queries that compares a ...
1
vote
1answer
40 views
Group activities in activity feed by users and products
On my website I'm building an activity feed where I got the basics done and are now making some improvements here and there.
One of them is the grouping. I've built it so that if multiple users buys ...
1
vote
2answers
182 views
mysql_select_db() very slow on a busy server
I have a MySQL Server with about 30 Databases and 1500 Tables. Overall size of the data is 2 GB. The Server has 16 GB RAM and an AMD FX-6100 CPU. Most tables are myisam.
On average the server answers ...
3
votes
1answer
102 views
What is the right way to manage users data?
I'm trying to create a simple register login script with user profiles, I created a table with the following structure:
+------------+---------------+------+-----+---------+----------------+
| Field ...
1
vote
0answers
103 views
big mysql database optimization
My Joomla mysql database has about 3.4 million rows in content table. It is just static article. Very slow and often use out of resources. To speed up it, I segmented it into 6 sub-tables and added ...
9
votes
1answer
141 views
Calculate MATCH() AGAINST() scores from UNIFIED QUERY not FOR EACH TABLE
I am trying to have a score for entire section of SELECT statements
SELECT *,MATCH(`result`) AGAINST('keyword') as `score` FROM `table1` WHERE MATCH(`result`) AGAINST('keyword')
UNION
SELECT ...
0
votes
1answer
593 views
Importing CSV file to MySQL via PHPMyAdmin
I am currently stuck and unable to upload a complete CSV file into a MySQL database. Unfortunately, the nice folks at Stackoverflow haven't been able to help me solve this issue, so I'm hoping someone ...
1
vote
2answers
73 views
Cannot INSERT into database on a shared server
I have launched an application on a shared server but I cannot INSERT any data. I thought maybe I don't have privileges so I did SHOW GRANTS in my application then die()
The result was [ EDITED ]:
...
2
votes
1answer
257 views
how to retrieve rows of different dates using IN clause
My table structure:
+-----------------+--------------+------+-----+-------------------+----------------+
| Field | Type | Null | Key | Default | Extra |
...
0
votes
1answer
173 views
Too many records on database and how to handle it? MySQL is it good to clone?
I am doing a social network and came up with the following concern regarding database storage. Let's put facebook as an example, imagine 2,000 photos per user, just 1,000 users, it would equal to ...
3
votes
2answers
69 views
Understanding COUNT() as `count`,
I'm currently learning how to build a site in PHP mysql. However, I seem to fail to understand COUNT() as count and wouldn't mind some further explanation.
I get the principles of COUNT, 0 || 1, and ...
-1
votes
2answers
87 views
How to update an SQL column using a known perm link while appending a value from another column within the same table? [closed]
Larger view of the issue is here: http://i1268.photobucket.com/albums/jj572/LinuxOwner/question.png
0
votes
1answer
162 views
Deleting Data From Multiple Tables
Suppose,I've a table called UNIVERSITY containing universities name:
universityID universityNAME isACTIVE
7 GNDU 1
6 PU 1
5 ...
1
vote
2answers
163 views
PHP-MYSQL messaging system performance problems
I want to create a messaging module for the social network web-site project (PHP & MySQL) I've been working on. What substructures do well-known sites use for modules like this?
I think, ...
1
vote
1answer
50 views
Sanitizing a form's database input while retaining basic HTML markup
Is there a way to sanitize database input (say, for a comment form), which also allows for the end user to use basic HTML styling markup? As in, if a user wraps their text in <i>/<em> or ...
