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COALESCE Function in TSQL
Can someone explain how the COALESCE function in TSQL works? The syntax is as follows
7 Answers
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Some font-size's rendered larger on Safari (iPhone)
...ere CSS or other reasons why Safari/iPhone would ignore some font-size settings? On my particular website Safari on the iPhone renders some font-size:13px text larger than font-size:15px text. Does it maybe not support font-size on some elements?
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SQL Server - where is “sys.functions”?
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I find UDFs are very handy and I use them all the time.
I'm not sure what Microsoft's rationale is for not including a sys.functions equivalent in SQL Server 2005 (or SQL Server 2008, as far as I can tell), but it's easy enough...
Efficient evaluation of a function at every cell of a NumPy array
...f = np.vectorize(f) # or use a different name if you want to keep the original f
result_array = f(A) # if A is your Numpy array
It's probably better to specify an explicit output type directly when vectorizing:
f = np.vectorize(f, otypes=[np.float])
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Possible to perform cross-database queries with PostgreSQL?
I'm going to guess that the answer is "no" based on the below error message (and this Google result ), but is there anyway to perform a cross-database query using PostgreSQL?
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Best way to implement Enums with Core Data
What is the best way to bind Core Data entities to enum values so that I am able to assign a type property to the entity? In other words, I have an entity called Item with an itemType property that I want to be bound to an enum, what is the best way of going about this.
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Multiple Type Constraints in Swift
...omeProtocol, SomeOtherProtocol> ), but it's a little less flexible.
Using where lets you deal with cases where multiple types are involved.
You may still want to compose protocols for reuse in multiple places, or just to give the composed protocol a meaningful name.
Swift 5:
func someFunc(ar...
Is there XNOR (Logical biconditional) operator in C#?
I'm new to C# and could not find XNOR operator to provide this truth table:
4 Answers
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Multi-line EditText with Done action button
Is it possible to have an EditText widget with android:inputType="textMultiLine" set, and android:imeOptions="actionDone" at the same time?
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How do I test for an empty string in a Bash case statement?
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The case statement uses globs, not regexes, and insists on exact matches.
So the empty string is written, as usual, as "" or '':
case "$command" in
"") do_empty ;;
something) do_something ;;
prefix*) do_prefix ;;
*) do_other ;;
esac
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