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拉里佩奇23条箴言帮你度过创业低谷 - 资讯 - 清泛网 - 专注C/C++及内核技术
...VCR也没能让电影院关门。
13。“如果让我用一句话总结如何改变世界，我会说，努力工作，为那些真正激动人心的事物。”
不是所有人都想要创造一辆无人驾驶车，或者清洁能源，或者解决十亿人的痛点。但在我内心，有一份...
MySQL foreign key constraints, cascade delete
... When creating the tables, you need to specify InnoDB or another MySQL engine that's capable of CASCADE operations. Otherwise the MySQL default, MyISAM, will be used and MyISAM does not support CASCADE operations. To do this, just add ENGINE InnoDB before the last ;.
–...
What are Flask Blueprints, exactly?
...aves")
def leaves():
return "This tree has leaves"
@tree_mold.route("/roots")
def roots():
return "And roots as well"
@tree_mold.route("/rings")
@tree_mold.route("/rings/<int:year>")
def rings(year=None):
return "Looking at the rings for {year}".format(year=year)
This is a simp...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...ould always store 255 characters.
But since you tagged this question with MySQL, I'll mention a MySQL-specific tip: as rows are copied from the storage engine layer to the SQL layer, VARCHAR fields are converted to CHAR to gain the advantage of working with fixed-width rows. So the strings in mem...
PHP: Convert any string to UTF-8 without knowing the original character set, or at least try
...a pure UTF-8 stack all the way through to your database. I have been using MySQL's utf8mb4 encoding for tables, fields, and connections.
My situation boiled down to "I just want my sanitizers, validators, business logic, and prepared statements to deal with UTF-8 when data comes from HTML forms, or...
MySQL Results as comma separated list
...
The intent is fine and MySQL will allow this, but be careful (generally) with your use of GROUP BY. The items in the select list need to be valid aggregates in the context of the GROUP BY clause. In this case, p.name is not strictly valid. Any d...
How to include() all PHP files from a directory?
...es though.
/*Directories that contain classes*/
$classesDir = array (
ROOT_DIR.'classes/',
ROOT_DIR.'firephp/',
ROOT_DIR.'includes/'
);
function __autoload($class_name) {
global $classesDir;
foreach ($classesDir as $directory) {
if (file_exists($directory . $class_name ....
Table is marked as crashed and should be repaired
...
Run this from your server's command line:
mysqlcheck --repair --all-databases
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Can you get DB username, pw, database name in Rails?
...%
require 'parseconfig'
c=ParseConfig.new('../../.my.cnf') %>
mysqlevn: &mysql
adapter: mysql
username: <%= c.params['client']['user'] %>
password: <%= c.params['client']['password'] %>
host: localhost
socket: <%= [
'/var/run/mysqld/mysqld.sock',
'/va...
setup.py examples?
...n
import os
import sys
from distutils.core import setup
name = "mycli"
rootdir = os.path.abspath(os.path.dirname(__file__))
# Restructured text project description read from file
long_description = open(os.path.join(rootdir, 'README.md')).read()
# Python 2.4 or later needed
if sys.version_info...