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How to remove leading and trailing whitespace in a MySQL field?
...really curious as to why this answer's got so many upvotes. Are you using mysql? What version?
– billynoah
May 16 '16 at 4:30
...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...用Tag Manager之前，我们先看看没有这个工具之前，我们是如何管理Tag脚本的。
Step 1：
按照Google Analytics的配置要求，我们把如下的脚本放到网站全局的页脚，如：footer.inc：
<script type=”text/javascript”>
var _gaq = _gaq || [];
_gaq....
Why is a “GRANT USAGE” created the first time I grant a user privileges?
...to the admin side of DBMS and was setting up a new database tonight (using MySQL) when I noticed this. After granting a user a privilege for the first time, another grant is created that looks like
...
How do I disable “missing docstring” warnings at a file-level in Pylint?
...
I think the fix is relative easy without disabling this feature.
def kos_root():
"""Return the pathname of the KOS root directory."""
global _kos_root
if _kos_root: return _kos_root
All you need to do is add the triple double quotes string in every function.
...
致PHP路上的“年轻人” - PHP - 清泛IT社区，为创新赋能！
...段落的“过来人”，还是想写点东西给“年轻人”。关于如何成长？我直白的答案还是建议通过实践，通过项目来成长。虽然提倡多参加项目，但项目不能是乱七八糟的项目什么都去尝试做，对于刚工作的同学，希望做这两类项...
How do I find a “gap” in running counter with SQL?
...
In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
...
提升大数据分析思想，拥抱大数据未来 - 资讯 - 清泛网 - 专注C/C++及内核技术
...务和世界范围内产生的数据。而所谓公司的麻烦是指，该如何正确利用这些数据——判断出哪些才是相关的、有用的，哪些是需要过滤掉的。最重要的是，哪些才是有助于推动业务发展的。”
因此，思想转变的第一步应是观察...
How add context menu item to Windows Explorer for folders [closed]
...ws Explorer or on background of a directory in right panel:
HKEY_CLASSES_ROOT\Directory\Background\shell if you are administrator
HKEY_CURRENT_USER\Software\Classes\directory\Background\shell if you are a normal user
Context menu for right click on folders in right panel of Windows Explorer:
H...
Importing modules from parent folder
... ├── __init__.py
└── life.py
I call the . the root folder, and in my case it is located in C:\tmp\test_imports.
Steps
1) Add a setup.py to the root folder
The contents of the setup.py can be simply
from setuptools import setup, find_packages
setup(name='myproject', ...
How to determine if binary tree is balanced?
... of a tree (where the minimum height is the least number of steps from the root to a leaf, and the maximum is... well, you get the picture). Given that, we can define balance to be:
A tree where the maximum height of any branch is no more than one more than the minimum height of any branch.
(T...