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Django-DB-Migrations: cannot ALTER TABLE because it has pending trigger events
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Bash set +x without it being printed
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Reset C int array to zero : the fastest way?
...y, since it's usually a routine written directly in assembly and optimized by hand.
memset(myarray, 0, sizeof(myarray)); // for automatically-allocated arrays
memset(myarray, 0, N*sizeof(*myarray)); // for heap-allocated arrays, where N is the number of elements
By the way, in C++ the idiomatic...
What's best SQL datatype for storing JSON string?
...ly leaves VARCHAR(x) or NVARCHAR(x): VARCHAR stores non-Unicode strings (1 byte per character) and NVARCHAR stores everything in a 2-byte-per-character Unicode mode. So do you need Unicode? Do you have Arabic, Hebrew, Chinese or other non-Western-European characters in your strings, potentially? The...
ios Upload Image and Text using HTTP POST
...[NSURL URLWithString:@""];
As i mentioned earler, this is not an answer by itself, just an addon to XJones' post.
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Naming of ID columns in database tables
... +1 Columns that are synonymous should have the same name - by using the table name prefix you can have a primary key column called table1ID and a foreign key column in another table called table1ID - and you KNOW that they are the same thing. I was taught this 20 years ago and its a...
Struct like objects in Java
... good idea. IMHO, that is a poor suggestion, as it could lead to confusion by human readers. Basic principle: don't make a reader do a double-take; make it obvious what you are saying -- Use different names for different entities. Even if the difference is merely to prepend an underscore. Don't rely...
Controlling the screenshot in the iOS 7 multitasking switcher
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BTW, I was informed by an Apple engineer that the documentation re ignoreSnapshotOnNextApplicationLaunch is incorrect, that, as we all observed, a snapshot is actually taken, but simply won't be used at next launch.
– Rob
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Swift equivalent for MIN and MAX macros
..., may it be String, Character or one of your custom class or struct.
Thereby, the following Playground sample code works perfectly:
class Route: Comparable, CustomStringConvertible {
let distance: Int
var description: String {
return "Route with distance: \(distance)"
}
i...
Can you get DB username, pw, database name in Rails?
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