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Haskell composition (.) vs F#'s pipe forward operator (|>)
...ell I've only ever seen function composition, (.) , being used. I understand that they are related , but is there a language reason that pipe-forward isn't used in Haskell or is it something else?
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How do I use CREATE OR REPLACE?
Am I correct in understanding that CREATE OR REPLACE basically means "if the object exists, drop it, then create it either way?"
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GPL and LGPL open source licensing restrictions [closed]
I am having trouble understanding the usage permissions of open source. I read somewhere that GPL or LGPL enforces that software that uses GPL software must also be released open-source. I want to create an application that uses some open-source image recognition library. Can I sell this application...
Is there a Rake equivalent in Python?
Rake is a software build tool written in Ruby (like Ant or Make ), and so all its files are written in this language. Does something like this exist in Python?
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How do I use ROW_NUMBER()?
...ion, why not just use?
SELECT COUNT(*) FROM myTable
to get the count.
And for the second question, the primary key of the row is what should be used to identify a particular row. Don't try and use the row number for that.
If you returned Row_Number() in your main query,
SELECT ROW_NUMBER()...
What is the difference between a “function” and a “procedure”?
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A function returns a value and a procedure just executes commands.
The name function comes from math. It is used to calculate a value based on input.
A procedure is a set of command which can be executed in order.
In most programming languages, even...
Implement touch using Python?
touch is a Unix utility that sets the modification and access times of files to the current time of day. If the file doesn't exist, it is created with default permissions.
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When are C++ macros beneficial? [closed]
The C preprocessor is justifiably feared and shunned by the C++ community. In-lined functions, consts and templates are usually a safer and superior alternative to a #define .
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How to view files in binary from bash?
...he contents of a file in the current directory, but in binary from the command line. How can I achieve this?
11 Answers
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Random String Generator Returning Same String [duplicate]
I've developed a random string generator but it's not behaving quite as I'm hoping. My goal is to be able to run this twice and generate two distinct four character random strings. However, it just generates one four character random string twice.
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