mysql

Connect to an online MySQL database from localhost

I am trying to connect to my MySQL database on my online server via PHP on my localhost. $con = mysql_connect("$hostname", "$username", "$password"); if (!$con) {die('Could not connect: ' . mysql_error());} mysql_select_db($databasename, $con); When I upload the script to the server it connects to the database fine. However, when I l...

Is databases always the answer in web data storage?

I haven't got any experience with databases, but intends to learn it and use it on a web project I'm planning. Though, I've got advice from a pal of mine that the use of databases should be quite more extensive than I planned. He believes in keeping almost all of the data in databases, where I find that databases are most convenient reg...

Determine 'valid until' date in MySQL query

In this table I store changeable values for certain spids. As days go by, these values can change, and an spid can get a new value. Now I want to find out until when a certain value is enabled. This is the data for a single spids uid spid propertyvalue creationdate -------------------------------------------------- 1 3 ...

Mysql Clone Row With Primary Key

I have a Mysql table with a single primary key (called pkey) that auto increments, and I would like to clone one row, keeping all the data the same, except for the primary key which should become the next available value as defined by auto increment. My first question is, is the following query possible? UPDATE `table` SET pkey='next_a...

How to deal with multilingual web content?

Situation is simple. I'm starting to develop a website that should be localized based on visitor's origin IP address. It's a PHP-MySQL stack. How do I go about the multilingual text content? I am thinking of having a language table in the database with the primary key as content identifier, another column for page identifier and separat...

Questions about types in MySQL

So I was creating a table for comments, and I was wondering. What would be a good type for comment details? I put longtext. Well then, why would people need varchar if longtext can handle it? Also, which type would I want for usernames? What is the purpose of "primary" for index? What is the purpose of index? Update: Let's say a commen...

MySQL - TEXT vs CHAR and VARCHAR

Reading this question a doubt poped into my head: char and varchar can store up to 255 chars text can store up to 65k chars char size in bytes is number of chars varchar size in bytes is number of chars used + 1 So how much bytes does TEXT actually occupies? ~65kb or number of chars used + 1? ...

trying to show a total from mysql in php

I am trying to get the qunt with are int and add them all up and show a total $qunt = 0; $result = mysql_query("SELECT * FROM properties_items WHERE user_propid='$view' ORDER BY id DESC") or die (mysql_error()); while ($row = mysql_fetch_array($result)) { $ite...

character encoding issue with mysql

In my LAMP app, users sometimes cut and paste input into my web forms from other applications like MS word. All of my webpages are set, via content type tag, to display in UTF. My PHP script saves the data for the web form into a mysql table that has the character encoding set to UTF-8. There is an apostrophe character that will displ...

Minimum for varchar?

I thought you could set varchar as varchar(min,max), but I must have mistaken. What's the syntax to set a min and max? Or do I have to use PHP to do that? Update: Let me add more context. I'm making a field for usernames, so I thought I could set the minimum and maximum for varchar in MySQL. Seems I can only set the length which is 0 t...

Connecting VB to MySQL

Hello everyone! I would like to ask some help on how to connect VB6 to MYSQL? Please provide references as well. Many Thanks ...

How to update sql like this?

Hey,i've got a problem, i want to execute this sql update, but it doesn't work. Could anyone help me? Thanks! The code: $temp = $_GET['ul']; foreach ($temp as $key=> $value) { $str=array(); $arr=explode(',',$value); $str =array($key=>$arr); for($i=0;$i<count($str[$key]);$i++) { $tripID='2'; ...

How to create a query for monthly total in MySQL?

I have the following DB. CREATE TABLE IF NOT EXISTS `omc_order` ( `order_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `customer_id` int(10) unsigned NOT NULL, `total` decimal(10,2) NOT NULL, `order_date` datetime NOT NULL, `delivery_date` datetime NOT NULL, `payment_date` datetime NOT NULL, PRIMARY KEY (`order_id`) ) ENGI...

Running syncdb on Django project not working

When I run: $ python manage.py syncdb I get the following output: Creating table auth_permission Traceback (most recent call last): File "manage.py", line 11, in <module> execute_manager(settings) File "/Library/Python/2.6/site-packages/django/core/management/__init__.py", line 362, in execute_manager utility.execute() ...

mysql regular expression matching query

Is this both query are similar? or which query is best to use. SELECT name FROM employees WHERE skill_sets REGEXP '[[:<:]]php[[:>:]]' SELECT name FROM employees WHERE skill_sets LIKE '%php%' ...

extract value using regular expression in mysql

I am storing values in database like this www/content/lessons/40/Digital Library/document1.doc I need to extract the file document.doc. How to retrieve this value from mysql using regular expression. ...

SQL query with limit on rows from one table, not the result set

I'm running a simple query with a join, similar to SELECT t1.a, t2.b FROM t1 LEFT JOIN t2 ON ... LIMIT 5 As t1 has-many rows in t2 ( any number above 2 ) the LIMIT statement does not return the first 5 rows from t1 and corresponding entries from t2, but 5 rows which usually include 2-3 rows from t1. How can I write this query to get ...

problem in php mysql_query()

I have the following table: table name: down fields: id, key and value in it is... 1, 1233 where id has INT 11 primary key and key is varchar and my query is SELECT * FROM down WHERE key='1233' but it is not working please let me know what is actually the problem... and giving me the following error You have an error in your...

mysql_connect() is not getting to the correct server.

Hello, I have a system with a globally open mysql connection to the local server. In one of my files I am opening an additional connection to a remote machine. Wieldly instead of trying to connect to that machine, I get an access denied message from my ISP (it seems to be trying to connect to the database on that machine). I am trying...

Very slow SQL statement

I'm having some major issues with an SQL statement, the following statement causes so much stress to the MySQL engine it pretty much hangs: select c.title, c.initial, c.surname, c.labelno, c.email, br1.bookingdate from explorer.booking_record br1 inner join explorer.client c on c.labelno = br1.labelno and email not like '' where br1.boo...