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Rails 4 LIKE query - ActiveRecord adds quotes
...) it gets translated to SELECT 1 AS one FROM "movies" WHERE (title ILIKE 'test') LIMIT $1 by ActiveRecord (Rails 5.1.6) - please notice that there is no percentage symbol after the ILIKE)
– sekmo
Aug 16 '19 at 23:17
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How do I use cascade delete with SQL Server?
...FERENCE constraint "FK_Child1_Parent1". The conflict occurred in database "TESTDB", table "dbo.Child1", column 'Parent1ID'."
– Palanikumar
Dec 1 '15 at 5:59
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How to find all positions of the maximum value in a list?
...iciencies pointed out by @John Machin. For (2) I attempted to optimize the tests based on guesstimated probability of occurrence of each condition and inferences allowed from predecessors. It was a little tricky figuring out the proper initialization values for max_val and max_indices which worked f...
Can't install Ruby under Lion with RVM – GCC issues
...ions prior to 1.9.3-p125 may not always be fully compatible with clang, so test your software thoroughly if using the “edit 3” solution in a production environment.
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The performance impact of using instanceof in Java
...t is a little faster than doing an instanceof, but the difference my quick test found was 10-20ms over 10,000,000 iterations. If "object" isn't an ObjT, though, catching the exception was over 3000x slower - over 31,000ms vs ~10ms for the instanceof.
– Steve
Fe...
Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...否生效了？试试下面的命令：
shell> curl -v "http://foo.com/test?x=123&y=abc"
< X-SRCache-Fetch-Status: HIT
< X-SRCache-Store-Status: BYPASS
目前我主要用srcache来缓存一些接口的json结果集，这些接口同时也支持jsonp，也就是客户端传递一个callback参...
Finding local maxima/minima with Numpy in a 1D numpy array
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if the input is test02=np.array([10,4,4,4,5,6,7,6]), then it does not work. It does not recognize the consecutive values as local minima.
– Leos313
Nov 24 '18 at 22:14
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FFmpeg: How to split video efficiently?
...uiet -y -i input.ts -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 -sn test1.mkv
time ffmpeg -v quiet -y -i input.ts -vcodec copy -acodec copy -ss 00:30:00 -t 01:00:00 -sn test2.mkv
echo "One command"
time ffmpeg -v quiet -y -i input.ts -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 \
-sn...
How do I save a String to a text file using Java?
...is, in particular FileUtils contains the following method:
static void writeStringToFile(File file, String data)
which allows you to write text to a file in one method call:
FileUtils.writeStringToFile(new File("test.txt"), "Hello File");
You might also want to consider specifying the encodin...
What are some compelling use cases for dependent method types?
... def duplicates(r : Resource) : Boolean
}
def create : Resource
// Test methods: exercise is to move them outside ResourceManager
def testHash(r : Resource) = assert(r.hash == "9e47088d")
def testDuplicates(r : Resource) = assert(r.duplicates(r))
}
trait FileManager extends ResourceMa...