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Oracle: how to UPSERT (update or insert into a table?)
...inserts a row in a table, depending if the table already has a row that matches the data:
12 Answers
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Looping over arrays, printing both index and value
...for i in "${!foo[@]}"; do
printf "%s\t%s\n" "$i" "${foo[$i]}"
done
Which means that indices will be in $i while the elements themselves have to be accessed via ${foo[$i]}
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Can't compile project when I'm using Lombok under IntelliJ IDEA
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I have fixed it in IDEA 12 by setting check box Enable annotation processing in:
Settings -> Compiler -> Annotation Processors
For IDEA 2016.2:
Preferences... > Build, Execution, Deployment > Compiler > Annotation Processors
After enab...
@synthesize vs @dynamic, what are the differences?
...ved the @synthesize line (Xcode 3.2 was giving me an error b/c I had no matching ivar for my @property). Adding @dynamic fixed the issue - compiles and runs fine now. Thanks!
– pix0r
Sep 14 '09 at 17:59
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Order Bars in ggplot2 bar graph
...tion might result — polynomial contrasts aren't right for nominal data such as this.
## set the levels in order we want
theTable <- within(theTable,
Position <- factor(Position,
levels=names(sort(table(Position),
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Rails 4: assets not loading in production
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In rails 4 you need to make the changes below:
config.assets.compile = true
config.assets.precompile = ['*.js', '*.css', '*.css.erb']
This works with me. use following command to pre-compile assets
RAILS_ENV=production bundle exec rake assets:precompi...
memcpy() vs memmove()
...own here. memcpy just loops, while memmove performs a test to determine which direction to loop in to avoid corrupting the data. These implementations are rather simple. Most high-performance implementations are more complicated (involving copying word-size blocks at a time rather than bytes).
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Print All JVM Flags
...n skim over following extracts and find suitable option faster:
https://chriswhocodes.com/ (OracleJDK 6/7/8/9/10/11/12, OpenJDK 8/9/10/11, Graal CE/EE, OpenJ9, Zing)
http://jvm-options.tech.xebia.fr/
http://www.pingtimeout.fr/2012/05/jvm-options-complete-reference.html
http://stas-blogspot.blo...
How can I get `find` to ignore .svn directories?
I often use the find command to search through source code, delete files, whatever. Annoyingly, because Subversion stores duplicates of each file in its .svn/text-base/ directories my simple searches end up getting lots of duplicate results. For example, I want to recursively search for uint i...
cscope or ctags why choose one over the other? [closed]
... ever used either cscope or ctags and would like to hear why one might choose one over the other taking into consideration my use of vim as a primary editor.
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