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When should I use semicolons in SQL Server?
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Seems they're basically encouraging use of the semicolon in general, by requiring it before all new statement types that have been introduced in recent years. (MERGE too for example). As mentioned in other answers, in the ANSI standard they a...
ActiveRecord: size vs count
...l valid.
You'll adapt the function you use depending on your needs.
Basically:
if you already load all entries, say User.all, then you should use length to avoid another db query
if you haven't anything loaded, use count to make a count query on your db
if you don't want to bother with these con...
How to define a two-dimensional array?
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You're technically trying to index an uninitialized array. You have to first initialize the outer list with lists before adding items; Python calls this
"list comprehension".
# Creates a list containing 5 lists, each of 8 items, all set t...
Is Dvorak typing appropriate for programming? [closed]
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There are Dvorak layouts specifically for programming: http://www.kaufmann.no/roland/dvorak/
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Very simple log4j2 XML configuration file using Console and File appender
...n" />
</Console>
<File name="MyFile" fileName="all.log" immediateFlush="false" append="false">
<PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
</File>
</Appenders>
<Loggers>
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Why can't variable names start with numbers?
...s well as a valid number.
int 17 = 497;
int 42 = 6 * 9;
String 1111 = "Totally text";
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MYSQL import data from csv using LOAD DATA INFILE
...tatement should look like this:
LOAD DATA INFILE 'data.csv' INTO TABLE tbl_name
FIELDS TERMINATED BY ',' ENCLOSED BY '"'
LINES TERMINATED BY '\r\n'
IGNORE 1 LINES;
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Cocoa Touch: How To Change UIView's Border Color And Thickness?
...st a heads up for others. Xcode suggests bridging UIColor to CGColorRef as __bridge CGColorRef. This does not work. It needs to be [UIColor blackColor].CGColor as mentioned in answer.
– GoodSp33d
Jul 10 '14 at 5:05
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Looping a video with AVFoundation AVPlayer?
...g movie duration longer than audio/video tracks is
the problem. FigPlayer_File is disabling gapless transition because
audio track edit is shorter than the movie duration (15.682 vs
15.787).
You need to either fix the movie files to have the movie duration and
track durations to be same...
Include constant in string without concatenating
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Yes it is (in some way ;) ):
define('FOO', 'bar');
$test_string = sprintf('This is a %s test string', FOO);
This is probably not what you were aiming for, but I think, technically this is not concatenation but a substitution and from this assumption, it includes a constant in a ...