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creating a strikethrough text?
... API or version are useful. If there is any rule in stackoverflow which at least recommed it, I will do it without problems.
– Ignacio Alorre
Aug 25 '17 at 5:53
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What's the difference between identifying and non-identifying relationships?
...or an identifying relationship.
Yes, a book can not be written without at least one author, but the author(it's foreign key) of the book is NOT IDENTIFYING the book in the books table!
You can remove the author (FK) from the book row and still can identify the book row by some other field (ISBN, I...
What is an abstract class in PHP?
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An abstract class is a class that contains at least one abstract method, which is a method without any actual code in it, just the name and the parameters, and that has been marked as "abstract".
The purpose of this is to provide a kind of template to inherit from and t...
Fastest way to remove first char in a String
...string from a single chunk of the original input, whereas Remove has to at least potentially glue together a start chunk and an end chunk.
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How do you create a random string that's suitable for a session ID in PostgreSQL?
...out 1020 bits, just reading the file once from end to end would result, at least, in about 100 times more mis-read UUIDs than duplicates. Storage, network, power, and other hardware and software errors would undoubtedly be thousands of times more frequent than UUID duplication problems.
source: wi...
Replace comma with newline in sed on MacOS?
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You need a backslash-escaped literal newline to get to sed.
In bash at least, $'' strings will replace \n with a real newline, but then you have to double the backslash that sed will see to escape the newline, e.g.
echo "a,b" | sed -e $'s/,/\\\n/g'
Note this will not work on all shells, but w...
String.IsNullOrWhiteSpace in LINQ Expression
...y' over "" (aka the empty string). The former works the latter doesn't (at least as far as Oracle's EF driver is concerned). Aka if you use: b.Diameter.Trim() == "" <-- this won't work as intended (crazy I know ...)
– XDS
Dec 14 '18 at 13:59
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How to Store Historical Data
...l.
Detail / History Table for example called Widget_Details containing at least:
ID - primary key. Detail/historical ID
MASTER_ID - for example in this case called 'WIDGET_ID', this is the FK to the Master record
START_DATETIME - timestamp indicating the start of that database row
END_DATETIME - ...
Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDeleg
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Jim, great answer. One potential issue (at least on my end) - I had to add the following line to get the touches to register on the button: button.userInteractionEnabled = YES;
– Mike Laurence
Aug 27 '09 at 19:52
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How to dynamically change header based on AngularJS partial view?
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If you're dead set on using $rootScope I'd at least extract this out to a service so you don't have $rootScope in your controller.
– Michael J. Calkins
Dec 5 '14 at 17:29
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