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SQL “select where not in subquery” returns no results
... FROM table1 t1
)
When table1.common_id is not nullable, all these queries are semantically the same.
When it is nullable, NOT IN is different, since IN (and, therefore, NOT IN) return NULL when a value does not match anything in a list containing a NULL.
This may be confusing bu...
Cookies vs. sessions
...ad of sessions? I have just that reason (that I do not need to store internally information about the user). Is that enough as a reason ? or it's more than that?
Could you please tell me about advantages/disadvantages of using cookies for keeping User's ID?
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Action bar navigation modes are deprecated in Android L
...king a look at the API diff report for the Android "L" preview, I see that all methods related to navigation modes in the ActionBar class (such as setNavigationMode() , addTab() , selectTab() , &c). are now deprecated.
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Set up a scheduled job?
...Django, and I'm curious if there is a way to schedule a job to run periodically.
24 Answers
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Why doesn't .NET/C# optimize for tail-call recursion?
...n was responsible for the machine code.
The CLR itself does support tail call optimization, but the language-specific compiler must know how to generate the relevant opcode and the JIT must be willing to respect it.
F#'s fsc will generate the relevant opcodes (though for a simple recursion it may j...
Custom checkbox image android
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Thanks, I actually found exactly what I needed here it-ride.blogspot.com/2010/04/… but I would have had to do it your way if I wanted a real custom image =P
– Falmarri
Oct 19 '10 at 6:44
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How do I clear a search box with an 'x' in bootstrap 3?
...efox users could instead select the text and press delete, or...
If you really need this nice-to-have feature supported in Firefox, then you could implement one of the other solutions posted here as a polyfill for input[type=search] elements. A polyfill is code that automatically adds a standard br...
jQuery Mobile: document ready vs. page events
...date:
My original article was intended for old way of page handling, basically everything before jQuery Mobile 1.4. Old way of handling is now deprecated and it will stay active until (including) jQuery Mobile 1.5, so you can still use everything mentioned below, at least until next year and jQuery...
How to save a plot as image on the disk?
...d like to save that image as PNG or JPEG, is it possible to do it automatically? (via code)
11 Answers
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How to get element by innerText
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@AutoSponge Actually innerHTML is standard. innerText does not work in FF
– AnaMaria
Aug 8 '13 at 9:04
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