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Best way to test if a row exists in a MySQL table
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You could also try EXISTS:
SELECT EXISTS(SELECT * FROM table1 WHERE ...)
and per the documentation, you can SELECT anything.
Traditionally, an EXISTS subquery starts with SELECT *, but it could
begin with SELECT 5 or SELECT column1 or anything ...
CSS disable text selection
Currently, I have put this in the body tag to disable text selections:
9 Answers
9
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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 to use Checkbox inside Select Option
The client has given me a design which has a Select Option menu containing a checkbox together with the item name as individual items in the list.
Is there anyway possible to add a checkbox inside a Select Option menu?
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How can I select from list of values in SQL Server
... would be to use a find an replace with UNION to get the distinct values.
SELECT 1
UNION SELECT 1
UNION SELECT 1
UNION SELECT 2
UNION SELECT 5
UNION SELECT 1
UNION SELECT 6
Applied to your long line of comma delimited text
Find and replace every comma with UNION SELECT
Add a SELECT in front of ...
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...
How do I make a placeholder for a 'select' box?
...s which is working out just fine. But I'd like to use a placeholder for my selectboxes as well. Of course I can just use this code:
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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)....
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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How do I check if a variable exists in a list in BASH
... give false positive if the user input contains regular expression special characters, for example x=.
– glenn jackman
Nov 9 '11 at 11:41
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