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Why does comparing strings using either '==' or 'is' sometimes produce a different result?
...s and dynamic
programming language runtimes) that
rely heavily on hash tables with
string keys. Without interning,
checking that two different strings
are equal involves examining every
character of both strings. This is
slow for several reasons: it is
inherently O(n) in the length o...
Replacement for “rename” in dplyr
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does rename work by reference like setnames from data.table package
– MySchizoBuddy
Sep 4 '15 at 0:11
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MySQL - length() vs char_length()
... 2 characters, even though like all combining marks it can — if a suitable font is available — be rendered as a single glyph. UTF-16LE can still have a 4-byte character though thanks to the surrogates.
– bobince
Nov 14 '09 at 22:05
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How to filter multiple values (OR operation) in angularJS
...ntion but your example doesn't seem to work as expected. The output in the table seems rather inconsistent.
– Hultner
Sep 16 '14 at 14:01
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Good Free Alternative To MS Access [closed]
...end with the forms/queries/reports (i.e., UI objects) and a back end (data tables only).
It's clear that what is needed here is a database application development tool like Access. None of the database-only answers are in any way responsive to that.
Please learn about Access before answering Acce...
Having Django serve downloadable files
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If you use a table to store file information, including which users should be able to download it, then all you need to send is the primary key, not the filename, and the app decides what to do.
– Edward Newell
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How do I compare two strings in Perl?
...ehaves the same as $b ~~ $a . The behaviour is determined by the following table: the first row that applies, in either order, determines the match behaviour.
$a $b Type of Match Implied Matching Code
====== ===== ===================== =============
(overloading trumps...
HQL ERROR: Path expected for join
...lly someone answering the root of the issue... (the need to prefix foreign table with existing alias) solved my problem, thanks a lot !
– Saad Benbouzid
Dec 16 '15 at 12:25
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Get Folder Size from Windows Command Line
...Shell I usually look for how you can decompose the high-level goal into suitable lower-level operations.
– Joey
Oct 10 '12 at 8:13
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How do I show a MySQL warning that just happened?
I just ran a simple MySQL CREATE TABLE statement that produced the line
3 Answers
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