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What are the most common SQL anti-patterns? [closed]
...d (or are learning) that SQL is different. Eliciting the desired results, and doing so efficiently, involves a tedious process partly characterized by learning unfamiliar paradigms, and finding out that some of our most familiar programming patterns don't work here. What are the common antipattern...
Is it possible to change a UIButtons background color?
...s until a web service responds. Must I change to highlight colour on press and have a timer change to disabled colour while waiting for the ws to respond? If I am missing the point can someone please explain. Thanks Polly.
– Polly
Aug 11 '12 at 11:05
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Print string and variable contents on the same line in R
Is there a way to print text and variable contents on the same line? For example,
8 Answers
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LINQ order by null column where order is ascending and nulls should be last
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This Worked to order fields with values on top and null fields on bottom i used this : orderby p.LowestPrice == null, p.LowestPrice ascending Hope helps someone.
– shaijut
Sep 27 '15 at 11:32
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GridLayout and Row/Column Span Woe
The Android Developers Blog post introducing GridLayout shows this diagram of how spans impact automatic index allocation:
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Resize image to full width and fixed height with Picasso
... using Picasso. I need to rise the image's width to the full device width, and to display the center part of the image cropped by a fixed height (150dp). I currently have the following code:
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HTTP Error 403.14 - Forbidden - The Web server is configured to not list the contents of this direct
I just created a new empty website in Visual Studio 2012 and clicked on run (i.e view in browser) and I get this error :
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UITableView - scroll to the top
...d:YES];
Or
[mainTableView setContentOffset:CGPointZero animated:YES];
And in Swift:
mainTableView.setContentOffset(CGPointZero, animated:true)
And in Swift 3 & above:
mainTableView.setContentOffset(.zero, animated: true)
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Rails has_and_belongs_to_many migration
I have two models restaurant and user that I want to perform a has_and_belongs_to_many relationship.
4 Answers
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How do I make Git use the editor of my choice for commits?
... variable: export GIT_EDITOR=vim
If you want to set the editor for Git and also other programs, set the standardized VISUAL and EDITOR environment variables*:
export VISUAL=vim
export EDITOR="$VISUAL"
* Setting both is not necessarily needed, but some programs may not use the more-correct VIS...