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Removing duplicate rows from table in Oracle
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Use the rowid pseudocolumn.
DELETE FROM your_table
WHERE rowid not in
(SELECT MIN(rowid)
FROM your_table
GROUP BY column1, column2, column3);
Where column1, column2, and column3 make up the identifying key for each record. You might list al...
Disable Rails SQL logging in console
... .irbrc, which is basically .bashrc for the Rails console. in fact you can do just about anything in .irbrc if you want, e.g., syntax coloring, history, edit code in vi and then execute it in the Rails console, etc. check my gem utility_belt if you're on Ruby 1.8 or the Ruby 1.9 port called flyrb
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Side-by-side plots with ggplot2
...uld like to place two plots side by side using the ggplot2 package , i.e. do the equivalent of par(mfrow=c(1,2)) .
13 Ans...
PHP function to generate v4 UUID
So I've been doing some digging around and I've been trying to piece together a function that generates a valid v4 UUID in PHP. This is the closest I've been able to come. My knowledge in hex, decimal, binary, PHP's bitwise operators and the like is nearly non existant. This function generates a val...
Creating a dynamic choice field
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What do you do when you want to get the request data out though? waypointForm(request.POST) won't validate in the first one, because the data to validate against isn't there anymore.
– Breedly
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PreparedStatement IN clause alternatives?
...t. Stupidly slow, strictly worse than WHERE search_column IN (?,?,?), so I don't know why the blogger even suggested it.
Use a stored procedure to construct the result set.
Prepare N different size-of-IN-list queries; say, with 2, 10, and 50 values. To search for an IN-list with 6 different values, ...
How to get a ListBox ItemTemplate to stretch horizontally the full width of the ListBox?
...er.
Add HorizontalContentAlignment="Stretch" to your ListBox. That should do the trick. Just be careful with auto-complete because it is so easy to get HorizontalAlignment by mistake.
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Take screenshots in the iOS simulator
... is running in the simulator, and save the screenshot on my Mac. How can I do this?
17 Answers
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Get integer value from string in swift
So I can do this:
12 Answers
12
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Reimport a module in python while interactive
I know it can be done, but I never remember how.
6 Answers
6
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