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MySQL: Błąd „#1005 – Can’t create table (errno: 121)” podczas tworzenia kluczy obcych. Powoli wyjaśnia się moja sytuacja na uczelni, także mam czas na opisywanie bardziej ambitnych problemów.

MySQL: Błąd „#1005 – Can’t create table (errno: 121)” podczas tworzenia kluczy obcych.

Dzisiejszy wpis sponsoruje przedmiot Hurtownie i Eksploracja Danych, w ramach którego w tym semestrze naszym zadaniem było m. in. zaprojektowanie rzeczonej hurtowni. Ze względu na to, że uwielbiam przedmioty pozwalające wykorzystać posiadaną wiedzę w praktyce, z przyjemnością zająłem się wykonaniem projektu. ;] Strukturę bazy danych obsługującej hurtownię projektowałem w narzędziu MySQL WorkBench, które z tego miejsca szczerze polecam – jak na darmowe oprogramowanie jest naprawdę bardzo solidnym produktem. Po przemyśleniu całego zadania utworzyłem kilkanaście połączonych relacjami tabel i zadowolony z ładnego obrazka [eksport diagramu do pliku PNG jest po prostu genialny] przystąpiłem do pisania sprawozdania.

Konkurencja

Quick 'n' Comfortable Web Development in PHP | Nette Framework. TinyMCE, jQuery and Ajax forms. Even thought this really seems easy, I believe there's stuff missing.

TinyMCE, jQuery and Ajax forms

I'm trying to make jquery and TinyMCE works together in ajax mode (silent submit and reload), but I really can't get anything working... some help would be appreciated. romain May 16, 2008 #1. Layout wyszukiwania. Sphinx | Open Source Search Server. Usługi medyczne - Ginekologia. Getting Started - Google Maps JavaScript API v3. Audience This documentation is designed for people familiar with JavaScript programming and object-oriented programming concepts.

Getting Started - Google Maps JavaScript API v3

You should also be familiar with Google Maps from a user's point of view. There are many JavaScript tutorials available on the Web. This conceptual documentation is designed to let you quickly start exploring and developing applications with the Google Maps API. Search engine indexing. Popular engines focus on the full-text indexing of online, natural language documents.[1] Media types such as video and audio[2] and graphics[3] are also searchable.

Search engine indexing

Meta search engines reuse the indices of other services and do not store a local index, whereas cache-based search engines permanently store the index along with the corpus. Unlike full-text indices, partial-text services restrict the depth indexed to reduce index size. Larger services typically perform indexing at a predetermined time interval due to the required time and processing costs, while agent-based search engines index in real time.

Sql performance

CVS--Concurrent Versions System - Adding, removing, and renaming files and directories. Go to the first, previous, next, last section, table of contents.

CVS--Concurrent Versions System - Adding, removing, and renaming files and directories

In the course of a project, one will often add new files. Likewise with removing or renaming, or with directories. The general concept to keep in mind in all these cases is that instead of making an irreversible change you want CVS to record the fact that a change has taken place, just as with modifying an existing file. The exact mechanisms to do this in CVS vary depending on the situation. X-editable :: In-place editing with Twitter Bootstrap, jQuery UI or pure jQuery.

Sizzle JavaScript Selector Library. CVS--Concurrent Versions System - Removing directories. In concept, removing directories is somewhat similar to removing files--you want the directory to not exist in your current working directories, but you also want to be able to retrieve old releases in which the directory existed.

CVS--Concurrent Versions System - Removing directories

The way that you remove a directory is to remove all the files in it. You don't remove the directory itself; there is no way to do that. Instead you specify the ‘-P’ option to cvs update or cvs checkout, which will cause CVS to remove empty directories from working directories. (Note that cvs export always removes empty directories.) Probably the best way to do this is to always specify ‘-P’; if you want an empty directory then put a dummy file (for example ‘.keepme’) in it to prevent ‘-P’ from removing it. DataTables (table plug-in for jQuery) Web services - maximum length of HTTP GET request. PHP charset/encoding FAQ - Kore Nordmann - PHP / Projects / Politics. By Kore Nordmann, first published at Fri, 30 May 2008 09:10:32 +0200 General What is the difference between unicode and UTF-8/UTF-16/...?

PHP charset/encoding FAQ - Kore Nordmann - PHP / Projects / Politics

Unicode is a charset, which means just a set of characters, which says nothing about how the characters are actually stored (mapped to bytes). UTF-8 / UTF-16 / ... are encodings which define how a character is mapped to bytes in a string or byte array. CSS-Tricks. Developer Network. The Chromium Projects.

HTML optgroup tag.

Jquery

Css. Systemy płatności. Przekierowanie portów na Livebox - www.jakzrobic.info - Dodał: exor dnia: 23 11 2008 Komentarzy: 12, ocena: 2,548.95 Przekierowania portów będziemy potrzebować jeśli: * uruchamiamy na swoim komputerze domowym serwer jakiejś usługi (www, ftp, itp.) lub gry i chcemy udostępnić ten serwer "na świat" * chcemy używać programów P2P na swoim domowym komputerze, który nie posiada zewnętrznego adresu IP (zewnętrzny adres posiada Livebox, komputery dostają od Liveboxa adresy z puli prywatnej) Sposób 1 * w panelu zarządzania Livebox otwietamy zakładkę: Serwery LAN * klikamy guzik Dodaj - otwiera się formularz podobny do tego z załączonej ilustracji poniżej. * wprowadzamy: Nazwa - nazwa naszego serwera (pomocna w jego identyfikacji) Dostęp włączony - wybieramy Tak - chcemy aby wprowadzane przekierowanie portów było aktywne Protokół - tutaj musimy wybrać protokół jakiego chcemy użyć.

Przekierowanie portów na Livebox - www.jakzrobic.info -

Zależy on od serwera, który chcemy przekierować (np. www i ftp korzystają z TCP, ale już programy P2P mogą używać UDP - należy to po prostu sprawdzić). 960 Grid System. Inside India's CAPTCHA solving economy. No CAPTCHA can survive a human that's receiving financial incentives for solving it, and with an army of low-waged human CAPTCHA solvers officially in the business of "data processing" while earning a mere $2 for solving a thousand CAPTCHA's, I'm already starting to see evidence of consolidation between India's major CAPTCHA solving companies.

Inside India's CAPTCHA solving economy

The consolidation logically leading to increased bargaining power, is resulting in an international franchising model recruiting data processing workers empowered with do-it-yourself CAPTCHA syndication web based kits, API keys, and thousands of proxies to make their work easier, and the process more efficient. Displaying reCAPTCHA Without Plugins - reCAPTCHA. This page explains how to display reCAPTCHA without using a plugin.

Displaying reCAPTCHA Without Plugins - reCAPTCHA

We offer a variety of plugins for different applications and programming environments, such as PHP and ASP.NET, and we encourage you to look at our multiple plugins before proceeding with the "Do-It-Yourself" installation instructions below. Overview. Twig - The flexible, fast, and secure PHP template engine - Homepage.

Haanga - über efficient template engine for PHP. PHP Template Engine Comparison « Gonzalo Ayuso | Web Architect. I’m going to face a project using a template engine with PHP. Because of that I’m will perform a small benchmark test of several PHP template engines. That’s not an exhaustive performance test. It’s only my personal test. Template engines has a lot of features but I normally only use a few of them and the other features very seldom.

JavaScript

Atom. How to select the first/least/max row per group in SQL at Xaprb. Here are some common SQL problems, all of which have related solutions: how do I find the most recent log entry for each program? How do I find the most popular item from each category? How do I find the top score for each player? In general, these types of “select the extreme from each group” queries can be solved with the same techniques.

I’ll explain how to do that in this article, including the harder problem of selecting the top N entries, not just the top 1. This topic is related to numbering rows, which I just wrote about (see my articles about MySQL-specific and generic techniques to assign a number to each row in a group). Obejmowanie "floatów". 6 Embeddable HTML Editors for Your Website Compared. Not many Web sites allow you to create your own pages, but many do allow you to create segments of HTML. What if you wanted to allow this on your own site?

Do you write your own editor? NicEdit - WYSIWYG Content Editor, Inline Rich Text Application. "For Dummies" WYMeditor - web-based XHTML editor - Home. Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification. This specification defines Cascading Style Sheets, level 2 revision 1 (CSS 2.1). CSS 2.1 is a style sheet language that allows authors and users to attach style (e.g., fonts and spacing) to structured documents (e.g., HTML documents and XML applications).

By separating the presentation style of documents from the content of documents, CSS 2.1 simplifies Web authoring and site maintenance. Ajaxload - Ajax loading gif generator. Reading local files in JavaScript. Introduction HTML5 finally provides a standard way to interact with local files, via the File API specification. As example of its capabilities, the File API could be used to create a thumbnail preview of images as they're being sent to the server, or allow an app to save a file reference while the user is offline.

Additionally, you could use client-side logic to verify an upload's mimetype matches its file extension or restrict the size of an upload. The spec provides several interfaces for accessing files from a 'local' filesystem: File - an individual file; provides readonly information such as name, file size, mimetype, and a reference to the file handle. UI for the Web powered by HTML5, jQuery & CSS3.

Help:Formatting. GD Graphics Library. SCM-Manager | The easiest way to share your Git, Mercurial and Subversion repositories over http.