大约有 13,066 项符合查询结果（耗时：0.0305秒） [XML]
Is there a REAL performance difference between INT and VARCHAR primary keys?
Is there a measurable performance difference between using INT vs. VARCHAR as a primary key in MySQL? I'd like to use VARCHAR as the primary key for reference lists (think US States, Country Codes) and a coworker won't budge on the INT AUTO_INCREMENT as a primary key for all tables.
...
ES6 class variable alternatives
Currently in ES5 many of us are using the following pattern in frameworks to create classes and class variables, which is comfy:
...
Python's many ways of string formatting — are the older ones (going to be) deprecated?
...
While there are various indications in the docs that .format and f-strings are superior to % strings, there's no surviving plan to ever deprecate the latter.
In commit Issue #14123: Explicitly mention that old style % string formatting has cavea...
Implement C# Generic Timeout
...good ideas for implementing a generic way to have a single line (or anonymous delegate) of code execute with a timeout.
7 A...
Does “git fetch --tags” include “git fetch”?
A nice and simple question - is the function of "git fetch" a strict sub-set of git fetch --tags ?
6 Answers
...
dd: How to calculate optimal blocksize? [closed]
How do you calculate the optimal blocksize when running a dd ? I've researched it a bit and I've not found anything suggesting how this would be accomplished.
...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...how my connection is set:
Connection conn = DriverManager.getConnection(url + dbName + "?useUnicode=true&characterEncoding=utf-8", userName, password);
...
Using GPU from a docker container?
I'm searching for a way to use the GPU from inside a docker container.
9 Answers
9
...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...least significant bit is on the right, I want to know the position of the furthest left bit that is a 1), what is the quickest/most efficient method of finding out?
...
HTML5 Canvas vs. SVG vs. div
...t approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and move them around.
...