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How do I force Postgres to use a particular index?
How do I force Postgres to use an index when it would otherwise insist on doing a sequential scan?
6 Answers
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Get the first item from an iterable that matches a condition
I would like to get the first item from a list matching a condition. It's important that the resulting method not process the entire list, which could be quite large. For example, the following function is adequate:
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Random record from MongoDB
I am looking to get a random record from a huge (100 million record) mongodb .
26 Answers
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When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
What are the proper uses of:
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Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
Conventional wisdom states that stored procedures are always faster. So, since they're always faster, use them ALL THE TIME .
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How do I break out of a loop in Scala?
How do I break out a loop?
19 Answers
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How do I export UIImage array as a movie?
I have a serious problem: I have an NSArray with several UIImage objects. What I now want to do, is create movie from those UIImages . But I don't have any idea how to do so.
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Why does my application spend 24% of its life doing a null check?
I've got a performance critical binary decision tree, and I'd like to focus this question on a single line of code. The code for the binary tree iterator is below with the results from running performance analysis against it.
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Insert line after first match using sed
For some reason I can't seem to find a straightforward answer to this and I'm on a bit of a time crunch at the moment. How would I go about inserting a choice line of text after the first line matching a specific string using the sed command. I have ...
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C# SQL Server - Passing a list to a stored procedure
I am calling a SQL Server stored procedure from my C# code:
8 Answers
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