mysql

DB Connections in ASP.NET, MySQL vs. SQL Server

I'm using MySQL in an ASP.NET project I'm currently working on, I did some tests to test the performance of the MySQL .NET provider but unfortunately I'm not very pleased with the results. A very simple loop that only opens the connection was 10x faster in SQL Server: // MySQL const string CONNECTION_STRING = "server=localhost;databa...

Searching Mysql for simillar string

People have different ideas of how to search for the same term. For example Tri-Valley, Trivalley, Tri Valley (and possibly even incorrect spellings) Currently that search is done like this SELECT * FROM `table` WHERE `SchoolDistrict` LIKE '%tri valley%'; Is there an easy way to say 'space dash or no space' without writing out three...

uploaded files - database vs filesystem, when using Grails and MySQL

I know this is something of a "classic question", but does the mysql/grails (deployed on Tomcat) put a new spin on considering how to approach storage of user's uploaded files. I like using the database for everything (simpler architecture, scaling is just scaling the database). But using the filesystem means we don't lard up mysql w...

What's the best way to display the number of items related to tags?

Hello, After following this recommendation regarding tags tables structure, I've implemented the following design: Table: Item Columns: ItemID, Title, Content Table: Tag Columns: TagID, Title Table: ItemTag Columns: ItemID, TagID I'm facing another problem, I wanna display the number each tag appears in the system. What's the best ...

Looking for a PHP/Ajax/MySQL code snippet to add/edit tags - same as stackOverflow

Hi, I'm in the middle of adding a tagging system to my website. I want to be able to easily add/edit items tags. My current tags table structure is: Table: Item Columns: ItemID, Title, Content Table: Tag Columns: TagID, Title, Tag_Counter Table: ItemTag Columns: ItemID, TagID I really like the implementation of the tagging in Stac...

How can i insert large files in mysql db using php?

Hi! I want to upload a large file of size 10M max to my mysql database. Using .htaccess i changed the PHP's own file upload limit to "10485760" = 10M, i am able to upload files upto 10M size without any problem. But i can not insert the file in database if it is more that 1M in size. i am using file_get_contents to read all file data ...

How to insert large files in mysql database using php?

Hi! I want to upload a large file of size 10M max to my mysql database. Using .htaccess i changed the PHP's own file upload limit to "10485760" = 10M, i am able to upload files upto 10M size without any problem. But i can not insert the file in database if it is more that 1M in size. i am using file_get_contents to read all file data ...

Quickest way to transfer data from MySQL DB 1 to MySQl DB 2

I have a new database, similar to the old one but with more columns and tables. So the data on the old table is still useable and needs transferring. The old database is on a different server to the new one. I want to transfer the data from one database to the other. I have navicat, but it seems to take forever using the host to host d...

What is the best approach to use when upgrading a Database

We have a system that has a Mysql database with about 2Gigs of data. The PC application that talks to the database has just been updated. There are a number of tables whose structure have changed and we need to run a conversion script. The system is only used in office hours Question: What is the best approach to doing this upgrade...

Type of JOIN

I have a table called PROJECT_CATEGORY and it contains two fields cat_id and cat_title I am storing the cat_id in another table called PROJECTS so: project_category.cat_id = projects.cat_id What is the best way using MySQL to run a query to show the cat_title. In other words I want to display the name not the ID number of the table. ...

Most secure Flash > MySQL connection

Currently the major means of connecting Flash AS2/AS3 to a MySQL database are: Flash > PHP > MySQL -- "secure code" in PHP Scripts Flash Asql or Assql > MySQL -- "secure code" in MySQL Stored Procedures The second approach is newer, but directly connects to a MySQL DB using binary sockets and ByteArrays. In which case would the "sec...

Using MySQL triggers to create database on insert.

Can I use a trigger in MySQL to create a new database when a value is inserted into another database. ...

How do i make mysql fail to insert a row when some column is not set?

Hi, I'm running into a problem where it is possible to insert a row into a table whithout specifically setting an INT NOT NULL column (defaults to 0 which is invalid for my purposes) I create the table this way: CREATE TABLE inventorycontrol ( ID INT NOT NULL UNIQUE AUTO_INCREMENT ,nodeID ...

mysqli bind variables

Hello, I have this partial code: if ($getRecords = $con->prepare("SELECT * FROM AUCTIONS WHERE ARTICLE_NO = ?")) { $getHtml = $con->prepare("SELECT ARTICLE_DESC FROM AUCTIONS WHERE ARTICLE_NO = ?"); $getHtml->bind_param("i", $pk); $getHtml->execute(); $getHtml->bind_result($ARTICLE_DESC); $getRecords->bind_param("i", $pk); $g...

Best way to Implement a MySQL Hash Table?

Background I'm currently developing an online community and I want to store some temporary information in a hash table. Currently this information is being stored in memcached, however, should the memcached service need to be restarted or failed, I would like to resort back to the on disk hash/cache. The Question What is the most effe...

How to: match (search space) against (join with column from other table)

Hello all, I'm lousy at SQL queries so this may be a silly question. However, here is roughly what i'd like to do: table corpuses //stuff i'd like to search thru title body ... table searches //list of search terms to be applied to corpuses term ... The query i'd like to write is more or less as foll...

Popularity Algorithm

I'd like to populate the homepage of my user-submitted-illustrations site with the "hottest" illustrations uploaded. Here are the measures I have available: How many people have favourited that illustration votes table includes date voted When the illustration was uploaded illustration table has date created Number of comments (n...

PHP If else statement that a database record is empty it will display a default picture.

Hi basicly I am trying to create a simple IF statement that shows a default picture if one hasn't been entered in to my database. I am using server to store my picture and a database to store the file name, so I can get the image to display if it has a file name in the db but I want the If statement to say if the record is empty display ...

How should I design the interface to a SQL column generator in PHP?

I'm working on a framework in PHP, part of this frameworks job is to write SQL code to generate new MySQL columns. What is the most elegant way to pass in a bunch of parameters for a column and then turn that into SQL code? As an example here is some YAML I have, that specifies parameters for creating a varchar column: - type: characte...

Map URL to MySQL databases

I am interested to offer both hosted and SaaS version of my application. Now, SOers suggested that I map the URLs to MySQL databases. What I can think of is something like this companya.mysoft.com will have the MySQL database that starts with the name companya*. i.e., compana_mydb companyb.mysoft.com will have the MySQL database that s...