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Why is SELECT * considered harmful?
Why is SELECT * bad practice? Wouldn't it mean less code to change if you added a new column you wanted?
15 Answers
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术
...来进行匹配了,Match方法的原型如下:
BOOL Match(const RECHAR *szIn, CAtlREMatchContext *pContext, const RECHAR **ppszEnd=NULL)
参数的含义很明显,不过需要注意到第一个参数的型别是:const RECHAR * szIN,是一个 const指针,这表明我们可以方...
jQuery - getting custom attribute from selected option
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You're adding the event handler to the <select> element.
Therefore, $(this) will be the dropdown itself, not the selected <option>.
You need to find the selected <option>, like this:
var option = $('option:selected', this).attr('mytag');
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maxlength ignored for input type=“number” in Chrome
...rch, password, tel, or url, this attribute specifies the maximum number of characters (in Unicode code points) that the user can enter; for other control types, it is ignored.
So maxlength is ignored on <input type="number"> by design.
Depending on your needs, you can use the min and max at...
How does this site infecting script work?
...replace(/#|\$|@|\^|&|\(|\)|\!/ig, '').
It removes most of the special characters, turning it into a normal URL:
evil://dyndns-org.gamestop.com.mybestyouxi-cn.genuinehollywood.ru:8080/softonic.com/softonic.com/google.com/livejasmin.com/videosz.com/
(I manually changed http: to evil:)
Note th...
Is it possible to style a select box? [closed]
I've got an HTML select box that I need to style. I'd prefer to use just CSS but if I have to I'll use jQuery to fill in the gaps.
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MySQL - Get row number on select
Can I run a select statement and get the row number if the items are sorted?
5 Answers
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How to keep the spaces at the end and/or at the beginning of a String?
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@androiddeveloper, \u indicates a unicode character as an escape sequence (not a unicode char directly in the file). &#nnn; indicates an html entity, which means that you're relying on your xml string being html parsed (it is by default when used in text views)....
Using union and order by clause in mysql
...criteria from a table based on distance for a search on my site.
The first select query returns data related to the exact place search .
The 2nd select query returns data related to distance within 5 kms from the place searched.
The 3rd select query returns data related to distance within 5-15 kms f...
Is there a limit on how much JSON can hold?
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It may be worth noting that the "default is 2097152 characters, which is equivalent to 4 MB of Unicode string data" for the property JavaScriptSerializer.MaxJsonLength mentioned in Amber's answer. (N.B. I have quoted from MSDN)
– dumbledad
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