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How to select from subquery using Laravel Query Builder?
...uilder
->count();
Mind that you need to merge bindings in correct order. If you have other bound clauses, you must put them after mergeBindings:
$count = DB::table( DB::raw("({$sub->toSql()}) as sub") )
// ->where(..) wrong
->mergeBindings($sub->getQuery()) // you nee...
Storing time-series data, relational or non?
...has to handle ~3 million measures with a 1 minute frequency? How would you order the PK for such a table? Wouldn't Device, Metric, DateTime create fragmentation and force the RDBMS to lots of page split? Instead putting DateTime first would reduce fragmentation (I'm assuming time ordered inserts) bu...
Use HTML5 to resize an image before upload
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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Encrypt & Decrypt using PyCrypto AES 256
...called the block and outputs a block. We use AES in a mode of operation in order to encrypt. The solutions above suggest using CBC, which is one example. Another is called CTR, and it's somewhat easier to use:
from Crypto.Cipher import AES
from Crypto.Util import Counter
from Crypto import Random
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How can I include raw JSON in an object using Jackson?
...N inside a Java object when the object is (de)serialized using Jackson. In order to test this functionality, I wrote the following test:
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How do I delete rows in a data frame?
...ld generally avoid deleting rows by numeric position. This is because the order of the rows in your data may change in the future. A general principle of a data.frame or database tables is that the order of the rows should not matter. If the order does matter, this should be encoded in an actual va...
Difference between InvariantCulture and Ordinal string comparison
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InvariantCulture
Uses a "standard" set of character orderings (a,b,c, ... etc.). This is in contrast to some specific locales, which may sort characters in different orders ('a-with-acute' may be before or after 'a', depending on the locale, and so on).
Ordinal
On the other...
Mercurial Eclipse Plugin
... Its disappointing that you need to sign up at java forge in order to download this plugin
– Chris Gow
Nov 26 '10 at 14:34
6
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Logging raw HTTP request/response in ASP.NET MVC & IIS7
...to be able to log the requests and response in as close as possible to the raw, on-the-wire format (i.e including HTTP method, path, all headers, and the body) into a database.
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What is a smart pointer and when should I use one?
...ointer exception.
OLD ANSWER
A smart pointer is a class that wraps a 'raw' (or 'bare') C++ pointer, to manage the lifetime of the object being pointed to. There is no single smart pointer type, but all of them try to abstract a raw pointer in a practical way.
Smart pointers should be preferred...