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Replacing NULL with 0 in a SQL server query
I have developed a query, and in the results for the first three columns I get NULL . How can I replace it with 0 ?
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How do the PHP equality (== double equals) and identity (=== triple equals) comparison operators dif
... such as !== or ===, then you can always be sure that the types won't magically change, because there will be no converting going on. So with strict comparison the type and value have to be the same, not only the value.
Type comparison table
As reference and example you can see the comparison tabl...
Revert changes to a file in a commit
...wiFissehaye : I think git checkout will only revert the changes again to fall back to the state what was in commit. I did 'git add filename ; git commit --amend' to remove the file from commit.
– ViFI
Oct 18 '16 at 18:20
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Command copy exited with code 4 when building - Visual Studio restart solves it
... found is to use the /C option for xcopy (which continues on error). Not really a solution but mostly it has stopped my builds from failing.
Another solution which only works on 32 bit is to use the unlocker tool to release the windows handles on the file before the copy.
Edit: I've just realise...
From ND to 1D arrays
...tten() is way slower, as it needs to make a copy.
– BallpointBen
Aug 29 '18 at 22:52
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Is there a standard naming convention for XML elements? [closed]
...enerators (i.e. to [de]serialize xml to objects), since not many languages allow enums with spaces (demanding a mapping between the two).
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Why is SELECT * considered harmful?
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There are really three major reasons:
Inefficiency in moving data to the consumer. When you SELECT *, you're often retrieving more columns from the database than your application really needs to function. This causes more data to mov...
Best way to include CSS? Why use @import?
Basically I am wondering what is the advantage / purpose of using @import to import stylesheets into an existing stylesheet versus just adding another ...
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Lambda expression to convert array/List of String to array/List of Integers
...the accepted answer are not needed. Streams can be used with lambdas or usually shortened using Method References. Streams enable functional operations. map() converts the elements and collect(...) or toArray() wrap the stream back up into an array or collection.
Venkat Subramaniam's talk (video) e...
C++: const reference, before vs after type-specifier
...const*.)
As a matter of style
Regarding which you should prefer stylistically, however, I'll dissent from a lot of the other answers and prefer const T& (and const T*):
const T& is the style used in Stroustrup's The C++ Programming Language book.
const T& is the style used in the C++...