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Postgres: “ERROR: cached plan must not change result type”
...SQL 8.3.7 server to my application.
Does anyone know what this error means and what I can do about it?
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How to align content of a div to the bottom
Say I have the following CSS and HTML code:
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How to get the current directory in a C program?
...is program is written for UNIX computers. I've been looking at opendir() and telldir() , but telldir() returns a off_t (long int) , so it really doesn't help me.
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Remove rows with all or some NAs (missing values) in data.frame
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but using complete.cases is quite a lot more clear, and faster.
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MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
as the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
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How to Test a Concern in Rails
...test your concerns against the actual classes that use them (e.g., models) and you'll be able to test them everywhere they're used. And you only have to write the tests once and then just include them in any model spec that uses your concern. In your case, this might look something like this:
# app...
A weighted version of random.choice
I needed to write a weighted version of random.choice (each element in the list has a different probability for being selected). This is what I came up with:
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Force IE compatibility mode off using tags
...ommended that Web developers restrict their use of Edge mode to test pages and other non-production uses because of the possible unexpected results of rendering page content in future versions of Windows Internet Explorer.
I honestly don't entirely understand why. But according to this, the best w...
How do I print a double value without scientific notation using Java?
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but it showed dexp: 12345681.000000 which is wrong value.And actually after then I want to display it on my web page where it display like this 1.2345678E7.Is there anyway through which i can store it in any double like 12345678 and any other way?
– Despicabl...
In-place edits with sed on OS X
I'd like edit a file with sed on OS X. I'm using the following command:
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