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How do I list all the columns in a table?
...ting, since DESCRIBE is not an Oracle PLSQL instruction but a SQL*Plus command, and as such it doesn't work in most SQL IDEs.
– walen
Dec 13 '18 at 14:29
add a comment
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ValueError : I/O operation on closed file
Here, p is a dictionary, w and c both are strings.
2 Answers
2
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Remove items from one list in another
...ist in another" is certainly not equivalent to a set difference operation, and you should not misinform people by accepting this as the right answer!!!!
– user1935724
May 26 '16 at 3:58
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Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]
...ork ("EF") - it now generates much better SQL (more like Linq to SQL does) and is easier to maintain and more powerful than Linq to SQL ("L2S"). As of the release of .NET 4.0, I consider Linq to SQL to be an obsolete technology. MS has been very open about not continuing L2S development further.
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File input 'accept' attribute - is it useful?
...sage
Note: These examples were written based on the current specification and may not actually work in all (or any) browsers. The specification may also change in the future, which could break these examples.
h1 { font-size: 1em; margin:1em 0; }
h1 ~ h1 { border-top: 1px solid #ccc; padding-t...
Converting String to “Character” array in Java
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I wish ArrayUtils is standard in JVMs!
– Alvin
Apr 4 '12 at 6:58
4
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Clear Application's Data Programmatically
...ationUserData().
I highly recommend using it in new applications:
import android.os.Build.*;
if (VERSION_CODES.KITKAT <= VERSION.SDK_INT) {
((ActivityManager)context.getSystemService(ACTIVITY_SERVICE))
.clearApplicationUserData(); // note: it has a return value!
} else {
// ...
How to efficiently compare two unordered lists (not sets) in Python?
... Hey @Raymond, I recently encountered this question on an interview and I used sorted(), admittedly not knowing about Counter. The interviewer insisted there was a more efficient method and clearly I drew a blank. After extensive testing in python 3 with the timeit module, sorted consisten...
Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
...egory around UIButton to be able to set the background color of the button and set the state. You might find this useful.
@implementation UIButton (ButtonMagic)
- (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state {
[self setBackgroundImage:[UIButton imageFromC...
How can I calculate the difference between two dates?
How can I calculate the days between 1 Jan 2010 and (for example) 3 Feb 2010?
9 Answers
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