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How to get first character of a string in SQL?
... @thomasrutter, Looking at an execution plan, SQL Server (at least 2008R2) internally translates LEFT(colName, length) into SUBSTRING(colName, 1, length). So there is no any optimizations here, it's just a preference.
– Alexander Abakumov
Sep 15 '...
What is the etymology of 'slug'? [closed]
...world.
(a) "Godel Escher, Bach", by one Douglas Hofstadter, which I (at least) consider one of the great modern intellectual works. You should also check out his other work, "Metamagical Themas".
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What is the difference between ArrayList.clear() and ArrayList.removeAll()?
...l be significantly slower than a simple .clear().
Apart from that (and at least equally important): arraylist.removeAll(arraylist) is just obtuse, confusing code. It is a very backwards way of saying "clear this collection". What advantage would it have over the very understandable arraylist.clear(...
More lines in command window
...
At least in Win7, Kristina's answer now seems to be either its memory of commands typed in the command lines, or the amount you can copy-paste.
To increase the scrollbar's memory, I did the following:
Go to properties as ment...
Using Predicate in Swift
...is my conclusion (SWIFT)
//Customizable! (for me was just important if at least one)
request.fetchLimit = 1
//IF IS EQUAL
//1 OBJECT
request.predicate = NSPredicate(format: "name = %@", txtFieldName.text)
//ARRAY
request.predicate = NSPredicate(format: "name = %@ AND nickName = %@", argumentArr...
How to run a makefile in Windows?
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I think its done by default - at least that was the case when I installed gnuwin32. Of course copying the files is bad practice anyway.
– JFFIGK
Aug 5 '18 at 15:54
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How to make my custom type to work with “range-based for loops”?
...by class member access
lookup (3.4.5), and if either (or both) finds at least one declaration,
begin- expr and end-expr are __range.begin() and __range.end(),
respectively;
— otherwise, begin-expr and end-expr are begin(__range) and
end(__range), respectively, where begin and end are...
Open Source Java Profilers [closed]
... under a BSD license. I found it to be quite useful for small programs. At least, the results it gives are way more easy to understand than hprofs output.
UITableViewCell Separator disappearing in iOS7
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Solves the issue at least partially. The cell does seem to be confused about non-integer heights.
– Nick Frolov
Oct 17 '13 at 8:43
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lodash multi-column sortBy descending
...ts descending.
To make particular sorts descending, chain your sorts from least significant to most significant, calling .reverse() after each sort that you want to be descending.
var data = _(data).chain()
.sort("date")
.reverse() // sort by date descending
.sort("name") // sort by...