Muller Digital | Web Development » Web

MySQL remove duplicates

nick — Fri, 09 Dec 2011 17:27:48 +0000

DELETE n1 FROM table n1, table n2 WHERE n1.id > 10000 AND n1.id < 11000 AND n1.id > n2.id AND n1.EMAIL = n2.EMAIL;

The above MySQL query will delete duplicate email addresses between the id’s 10000 and 11000. Breaking the query into blocks of 1000 id’s will reduce strain the MySQL server.

MySQL find duplicates

nick — Fri, 09 Dec 2011 17:23:08 +0000

select EMAIL, count(EMAIL) as cnt from TABLE group by EMAIL having cnt > 1 ORDER BY `cnt` DESC

The above MySQL query will find and list the number of multiple duplicate emails in a table.

Search web by image

nick — Mon, 28 Nov 2011 15:45:30 +0000

http://www.tineye.com/ allows you to search the web for similar images to ones uploaded or on the web.

UPDATE: Google has this as well: http://www.google.com/insidesearch/searchbyimage.html

PHP imagick – website references, manuals and information

nick — Wed, 07 Sep 2011 18:10:45 +0000

imagick is a more advanced graphics library than the default GD for PHP, but the ImageMagick PHP library imagick is only documented on PHP.net comments, so using the library can be a bit challenging, but the sites above help in using the library.

Multiple MySQL query with PHP

nick — Tue, 31 May 2011 15:55:05 +0000

// Enter multiple query string $query_str = " -- Update table UPDATE t SET id = id + 1; -- Insert into table INSERT INTO example (name, age) VALUES('John Doe', '23' ); "; // Explode string into separate queries $query = explode(';',$query_str); // Loop through exploded queries and execute foreach($query as $index => $sql) { $result = mysql_query($sql,$conn2) or userDisplayMessage(mysql_error().' '.__FILE__.':'.__LINE__); }
Or, you can use mysqli (MySQL Improved extension), which has a mysqli_multi_query function.

Secure Google search – encrypted search string and url

nick — Mon, 16 May 2011 19:03:58 +0000

https://encrypted.google.com/
If you want to search Google securely, over an encrypted connection, use the above link.
This prevents your search from being seen by anyone but you and Google, that includes your ISP.
Resources:

Generate CSR file for GoDaddy SSL certificate in OSX, using terminal command line and openssl

nick — Thu, 20 Jan 2011 07:11:37 +0000

This works for generating CSR files required by GoDaddy SSL certificates. This will work with more than just GoDaddy SSL certificates, you can even sign your own certificates.
$ openssl genrsa -des3 -out domain.key 2048
You will now have to enter a passphrase
$ openssl req -new -key domain.key -out domain.csr
You will now have to re-enter your passphrase to confirm, and then you will be prompted to enter all your information.
Enter the domain name you are registering this certificate for when it prompts you:
Common Name (eg, YOUR name) []

You will now have the CSR file you need to send to the signing authority to issue you your certificate.

Here is the code to generate the CRT file ( if you’re not using GoDaddy and you want to sign your own )
openssl x509 -req -days 365 -in domain.csr -signkey domain.key -out domain.crt

Convert PostScript Type 1,2 to TrueType font

nick — Tue, 16 Nov 2010 07:46:42 +0000

FontForge will allow you to save a font as .SFD, which will then allow you to save as a TTC format, which then can have the extension changed from TTC to TTF…yeah, I know…

In order to use some javascript based font rendering libraries, you tend to need to have the font which you wish to translate as a TTF (True Type Font) or OTF (Open Type Face) format. Problem is there are many other formats that exist. Font Forge is a prime tool for font manipulation.

Also great font resource: Open Font Library
And great javascript rendering font system: Typekit

IE6 change cursor to pointer or hand on any element

nick — Tue, 09 Nov 2010 21:18:51 +0000

IE6 only supports :hover on elements. To change the cursor to a pointer or hand on hover of any non-anchor element, say a div:
In css
div { cursor:hand; cursor:pointer; }
Do not add the pseudo state ‘:hover’, and it will work cross browser.

Coda – Error code 37 – “Host Key Changed for…”

nick — Tue, 06 Jul 2010 20:35:52 +0000

Coda error code 37 is caused when a site’s ip address changes. This causes the SSH keys to no longer valid. It can be fixed by connecting via SSH with Terminal, inside Coda, and reading the response. The response will tell you what line needs to be deleted in the known_hosts file. The known_hosts file is located /Users/user_name/.ssh/known_hosts