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updating table rows in postgres using subquery
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720
Postgres allows:
UPDATE dummy
SET customer=subquery.customer,
address=subquery.address,
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Linq to Entities join vs groupjoin
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380
Behaviour
Suppose you have two lists:
Id Value
1 A
2 B
3 C
Id ChildValue
1 a1
1 a2...
How do I execute inserts and updates in an Alembic upgrade script?
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+100
What you are asking for is a data migration, as opposed to the schema migration that is most prevalent in the Alembic docs.
This answ...
Google Analytics - Failed to load resource: http://www.google-analytics.com/ga.js
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m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
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Text overflow ellipsis on two lines
...</p>
</div>
</div>
CSS:
html,body,p {
margin: 0;
padding: 0;
font-family: sans-serif;
}
.ellipsis {
overflow: hidden;
height: 200px;
line-height: 25px;
margin: 20px;
border: 5px solid #AAA;
}
.ellipsis:before {
content: "";
float: left...
Objective-C declared @property attributes (nonatomic, copy, strong, weak)
...but just holds a reference to it. If the object's reference count drops to 0, even though you may still be pointing to it here, it will be deallocated from memory.
The above link contain both Good information regarding Weak and Strong.
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How can you diff two pipelines in Bash?
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edited Mar 8 '18 at 4:05
Peter Cordes
214k3131 gold badges353353 silver badges524524 bronze badges
a...
Why was “Avoid Enums Where You Only Need Ints” removed from Android's performance tips?
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answered Mar 10 '11 at 19:33
Elliott HughesElliott Hughes
4,49722 gold badges2020 silver badges2121 bronze badges
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Specifying and saving a figure with exact size in pixels
...e too large it will shrink to the screen size). Let's imagine you want an 800x800 pixel image just for an example. Here's how to show an 800x800 pixel image in my monitor (my_dpi=96):
plt.figure(figsize=(800/my_dpi, 800/my_dpi), dpi=my_dpi)
So you basically just divide the dimensions in inches by...
How to get current path with query string using Capybara
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answered Mar 8 '11 at 4:40
nzifnabnzifnab
14.4k33 gold badges4444 silver badges6161 bronze badges
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