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MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
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answered Apr 26 '10 at 15:26
Peter LangPeter Lang
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Need to reset git branch to origin version
...t original to upstream state" for other options.
With Git 2.23 (August 2019), that would be one command: git switch.
Namely: git switch -C mybranch origin/mybranch
Example
C:\Users\vonc\git\git>git switch -C master origin/master
Reset branch 'master'
Branch 'master' set up to track remote br...
Assign variables to child template in {% include %} tag Django
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edited Mar 9 '16 at 10:36
Flimm
86.5k2828 gold badges186186 silver badges191191 bronze badges
answe...
How to use conditional breakpoint in Eclipse?
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edited Feb 29 '12 at 6:06
answered Aug 25 '11 at 17:09
Z...
IE7 does not understand display: inline-block
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301
The IE7 display: inline-block; hack is as follows:
display: inline-block;
*display: inline;
zo...
Replacing some characters in a string with another character
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340
echo "$string" | tr xyz _
would replace each occurrence of x, y, or z with _, giving A__BC___D...
Select first occurring element after another element
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207
#many .more.selectors h4 + p { ... }
This is called the adjacent sibling selector.
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Define all functions in one .R file, call them from another .R file. How, if possible?
...lt;- barXYZ(x)+1
return(k)
}
barABC <- function(x){
k <- x+30
return(k)
}
and xyz.R is this:
fooXYZ <- function(x) {
k <- fooABC(x)+1
return(k)
}
barXYZ <- function(x){
k <- barABC(x)+20
return(k)
}
then,
> source("abc.R")
> source("xyz.R"...
Attach IntelliJ IDEA debugger to a running Java process
...ree read-only fields. These are options that tell the JVM to open up port 5005 for remote debugging when running your application. Add the appropriate one to the JVM options of the application you are debugging. One way you might do this would be like so:
export JAVA_OPTS="-agentlib:jdwp=transport=...
How to access the content of an iframe with jQuery?
...ame").contents().find("#myContent")
Source: http://simple.procoding.net/2008/03/21/how-to-access-iframe-in-jquery/
API Doc: https://api.jquery.com/contents/
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