lewanscheck.de » Programming

Nützliche Mysql Snippets

admin — Tue, 26 Oct 2010 13:44:05 +0000

Dinge die man sich nicht merken kann, sollte man sich aufschreiben!

Bitmask Select MySQL
SELECT * FROM menus WHERE (owner & 2) = 2 (with 2 being the bitmask value and owner the field with your bitmask values)

Varchar-Datum in richtiges DateTime wandeln

SELECT zeit,STR_TO_DATE(zeit, '%d\. %M %Y') FROM guestbook WHERE 1

Auto-increment anpassen / adjust auto-increment value

ALTER TABLE tbl AUTO_INCREMENT = 100;

Spalte innerhalb einer Tabelle verschieben, Rearrange column order in table:

ALTER TABLE my_table MODIFY COLUMN products_id int AFTER categories_id

Table zu utf-8 wandeln, Convert table to utf-8:

ALTER TABLE tbl_name CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci;

Tabellen-Kommentare hinzufügen, Inserting database table comments:

ALTER TABLE tablename COMMENT = 'new updated comment';

Recover Dreamweaver FTP-Zugang

admin — Sat, 24 Apr 2010 08:44:32 +0000

DaftLogic Password recovery

preg_match limit

admin — Tue, 08 Dec 2009 13:06:25 +0000

One thing to note when working with larger texts and preg_replace() is that the matched text cannot be longer than (usually) 100 000.
I discovered this while debugging a CMS-system which wouldn’t display a certain text. Took forever to find the problem.

Thankfully the default values can be changed – but only if you have access to the server.

http://us.php.net/manual/en/pcre.configuration.php

Convert page from latin to utf-8

admin — Tue, 10 Nov 2009 12:04:04 +0000

If you ever had the pleasure of converting a page from iso to utf-8 and had mixed encodings in your database you will appreciate this link.

http://www.oreillynet.com/onlamp/blog/2006/01/turning_mysql_data_in_latin1_t.html

Adobe Wave WordPress Plugin

admin — Tue, 27 Oct 2009 20:06:03 +0000

Did you ever want to notify all your fans at once if something on your blog changes? Have them download Adobe wave and send messages directly to their desktop.

You can download the plugin here:

http://blog.grobmeier.de/2009/08/04/adobe-wave-wordpress-plugin-finished.html