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Why is SELECT * considered harmful?
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322
There are really three major reasons:
Inefficiency in moving data to the consumer. When you...
Curly braces in string in PHP
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echo "This works: {$arr['key']}";
// Works
echo "This works: {$arr[4][3]}";
// This is wrong for the same reason as $foo[bar] is wrong outside a string.
// In other words, it will still work, but only because PHP first looks for a
// constant named foo; an error of level E_NOTICE (undefined c...
Which HTML5 tag should I use to mark up an author’s name?
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edited Jun 24 '13 at 20:31
answered Sep 3 '11 at 18:28
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How to create own dynamic type or dynamic object in C#?
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answered Oct 3 '12 at 13:21
Mario SannumMario Sannum
10.6k88 gold badges3434 silver badges4545 bronze badges
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awk without printing newline
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awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
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Truncate a list to a given number of elements
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3 Answers
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stash@{1} is ambiguous?
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234
Your shell is eating your curly brackets, so while you say stash@{1}, git sees stash@1 and that...
Any way to delete in vim without overwriting your last yank? [duplicate]
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13 Answers
13
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