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Best way to do multi-row insert in Oracle?
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answered Sep 2 '08 at 14:08
EspoEspo
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Swift: Pass array by reference?
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edited Nov 15 '17 at 21:23
iwasrobbed
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Checking for the correct number of arguments
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218
#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 DIRECTORY" >&2
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How do I check if a string contains another string in Objective-C?
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23 Answers
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How to fix Error: “Could not find schema information for the attribute/element” by creating schema
I have a windows forms application written in VS2010 with C# and get the following errors in the app.config file:
10 Answ...
How to set default values in Rails?
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edited Jun 23 '17 at 14:59
Stéphane Bruckert
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When to use LinkedList over ArrayList in Java?
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SQL Logic Operator Precedence: And and Or
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296
And has precedence over Or, so, even if a <=> a1 Or a2
Where a And b
is not the same...
Replace specific characters within strings
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With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18", "e18947")
group
[1] "12357e" "12575e" "197e18" "e18947"
gsub("e", "", group)
[1] "12357" "12575" "19718" "18947"
What gsub does here is to replace each occurrence of "e" with an empty string ""....