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How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...er, somedata text);
INSERT INTO newvals(id, somedata) VALUES (2, 'Joe'), (3, 'Alan');
LOCK TABLE testtable IN EXCLUSIVE MODE;
UPDATE testtable
SET somedata = newvals.somedata
FROM newvals
WHERE newvals.id = testtable.id;
INSERT INTO testtable
SELECT newvals.id, newvals.somedata
FROM newvals
LEFT...
Joining two lists together
...
Sipo
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answered Oct 6 '09 at 21:24
ChrisF♦ChrisF
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Why use argparse rather than optparse?
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324
As of python 2.7, optparse is deprecated, and will hopefully go away in the future.
argparse ...
How do I get java logging output to appear on a single line?
... Trevor RobinsonTrevor Robinson
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4
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CMake link to external library
...Andre's solution.
– Fraser
Mar 27 '13 at 23:41
4
I find the "imported" library target to be more ...
Difference between toFixed() and toPrecision()?
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134
toFixed(n) provides n length after the decimal point; toPrecision(x) provides x total length.
...
CSS Display an Image Resized and Cropped
... hidden;
}
.crop img {
width: 400px;
height: 300px;
margin: -75px 0 0 -100px;
}
<div class="crop">
<img src="https://i.stack.imgur.com/wPh0S.jpg" alt="Donald Duck">
</div>
You can use negative margin to move the ...
Trim string in JavaScript?
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edited Aug 30 '19 at 12:44
Samuel Dauzon
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Convert Iterator to ArrayList
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364
Better use a library like Guava:
import com.google.common.collect.Lists;
Iterator<Element...
What is the difference between and ?
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131
<html lang="en">
<html lang="en-US">
The first lang tag only specifies a lan...