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How do I create a unique constraint that also allows nulls?
...et_AllowNull
UNIQUE (TicketID, TicketUnique);
If IssueID 1 has ticket 123, the UNIQUE constraint will be on values (123, NULL). If IssueID 2 has no ticket, it will be on (NULL, 2). Some thought will show that this constraint cannot be duplicated for any row in the table, and still allows multip...
Html code as IFRAME source rather than a URL
... For anyone like me who was looking how to encode HTML this way with php, you want rawurlencode (php.net/manual/en/function.rawurlencode.php)
– Braiba
Dec 2 '15 at 13:27
4
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C# convert int to string with padding zeros?
...
Simply
int i=123;
string paddedI = i.ToString("D4");
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Why should I use version control? [closed]
...t can be local and doesn't have to be on the web for anyone to see? I use php designer, I love it and it has integration for Tortoise SVN, not sure if that is a good one
– JasonDavis
Sep 11 '09 at 0:50
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Is JavaScript an untyped language?
...licit compiler interjection, the instruction will error during run-time.
"12345" * 1 === 12345 // string * number => number
Strongly typed means there is a compiler, and it wants you an explicit cast from string to integer.
(int) "12345" * 1 === 12345
In either case, some compiler's featur...
Cannot simply use PostgreSQL table name (“relation does not exist”)
I'm trying to run the following PHP script to do a simple database query:
11 Answers
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win7 安装项目管理工具redmine2.5.1 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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成功！
八、附录
1、解决 webrick响应慢的问题：
修改C:\RailsInstaller\Ruby1.9.3\lib\ruby\1.9.1\webrick\ 目录中的server.rb 和httprequest.rb文件。
server.rb中的184行：
addr = sock.peeraddr
改为
addr = sock.peeraddr(:numeric )
h...
NSIS学习笔记（持续更新） - C/C++ - 清泛网 - 专注C/C++及内核技术
...NSIS进阶教程－－制作仿酷狗安装包
http://home.xtzj.com/forum.php?mod=viewthread&tid=610259
[2]NSI脚本编辑器
http://az.eliang.com/aq_2013030724.html
[3]Writing a NSIS plugin
http://clseto.mysinablog.com/index.php?op=ViewArticle&articleId=1910084
http://blog.csdn.net/lee353086/...
Integrating Dropzone.js into existing HTML form with other fields
...al form, in $_POST and $_FILES (in the example this would happen in upload.php)
HTML
<form action="upload.php" enctype="multipart/form-data" method="POST">
<input type="text" id ="firstname" name ="firstname" />
<input type="text" id ="lastname" name ="lastname" />
&l...
How to 'insert if not exists' in MySQL?
...It will certainly stop your script, with a failure. It must be possible in PHP to adress that case ...
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