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How can I add a column that doesn't allow nulls in a Postgresql database?
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@allan.simon I've never used PostgreSQL before and I don't have it installed anywhere.
– Sean Bright
Oct 18 '15 at 19:50
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How do I get the key at a specific index from a Dictionary in Swift?
I have a Dictionary in Swift and I would like to get a key at a specific index.
10 Answers
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How does generic lambda work in C++14?
...w does generic lambda work ( auto keyword as an argument type) in C++14 standard?
3 Answers
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How to undo a git merge with conflicts
I am on branch mybranch1 . mybranch2 is forked from mybranch1 and changes were made in mybranch2 .
6 Answers
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Convert file path to a file URI?
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The System.Uri constructor has the ability to parse full file paths and turn them into URI style paths. So you can just do the following:
var uri = new System.Uri("c:\\foo");
var converted = uri.AbsoluteUri;
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What is the meaning of git reset --hard origin/master?
I did a git pull and got an error:
2 Answers
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find -exec a shell function in Linux?
...oesn't require exporting the function or messing around escaping arguments and is presumably more efficient since it's not spawning subshells to execute each function.
– Tom
May 30 '12 at 5:19
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SQL WHERE ID IN (id1, id2, …, idn)
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Option 3 is simply horrible performance-wise. It sends a query every loop and hammers the database with small queries. It also prevents it from using any optimizations for "value is one of those in a given list"
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Using Tint color on UIImageView
I have my own subclass of UIButton . I add UIImageView on it and add an image. I would like to paint it over the image with a tint color but it doesn't work.
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Is there something like Annotation Inheritance in java?
I'm exploring annotations and came to a point where some annotations seems to have a hierarchy among them.
4 Answers
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