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Select last N rows from MySQL
I want to select last 50 rows from MySQL database within column named id which is primary key . Goal is that the rows should be sorted by id in ASC order, that’s why this query isn’t working
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Rails Migration: Remove constraint
I have a table in a Rails application which (in schema.rb) looks like:
2 Answers
2
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How do I make sure every glyph has the same width?
I've noticed that even at the same font size, there is not a standard width. How can I use these in front of a list of items so the words don't appear jagged?
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How to install GCC piece by piece with GMP, MPFR, MPC, ELF, without shared libraries?
How do I install GCC (the GNU Compiler Collection) piece by piece, using the current version,
using the correct versions of dependencies, not using a package manager (like yum, rpm, apt, dpkg), and not using shared libraries?
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Check Whether a User Exists
I want to create a script to check whether a user exists. I am using the logic below:
17 Answers
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Create an empty data.frame
I'm trying to initialize a data.frame without any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result.
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How do you get the magnitude of a vector in Numpy?
In keeping with the "There's only one obvious way to do it", how do you get the magnitude of a vector (1D array) in Numpy?
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REST API Best practices: args in query string vs in request body
A REST API can have arguments in several places:
3 Answers
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What are all the possible values for HTTP “Content-Type” header?
I have to validate the Content-Type header value before passing it to an HTTP request.
4 Answers
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SQLAlchemy: What's the difference between flush() and commit()?
What the difference is between flush() and commit() in SQLAlchemy?
5 Answers
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