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MYSQL OR vs IN performance
...than using OR.
Do not believe people who give their "opinion", science is all about testing and evidence.
I ran a loop of 1000x the equivalent queries (for consistency, I used sql_no_cache):
IN: 2.34969592094s
OR: 5.83781504631s
Update:
(I don't have the source code for the original test, as it...
Typing Enter/Return key using Python and Selenium?
... so I can't modify) doesn't have a Submit button. When working with it manually, I just type ENTER or RETURN . I need to know how to do that with the Selenium type command as there is no button to click.
...
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
...read the Python Unicode HOWTO. This error is the very first example.
Basically, stop using str to convert from unicode to encoded text / bytes.
Instead, properly use .encode() to encode the string:
p.agent_info = u' '.join((agent_contact, agent_telno)).encode('utf-8').strip()
or work entirely i...
Save Screen (program) output to a file
I need to save the whole output of Screen to a file to check later all the content.
11 Answers
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Media Player called in state 0, error (-38,0)
...
You need to call mediaPlayer.start() in the onPrepared method by using a listener.
You are getting this error because you are calling mediaPlayer.start() before it has reached the prepared state.
Here is how you can do it :
mp.setDataSo...
cannot download, $GOPATH not set
I want to install json2csv using go get github.com/jehiah/json2csv but I receive this error:
15 Answers
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grant remote access of MySQL database from any IP address
...this article is for you.
ERROR 1130 (HY000): Host ‘1.2.3.4’ is not allowed to connect to this
MySQL server
Change mysql config
Start with editing mysql config file
vim /etc/mysql/my.cnf
Comment out following lines.
#bind-address = 127.0.0.1
#skip-networking
If you do not...
Copy the entire contents of a directory in C#
...
Much easier
//Now Create all of the directories
foreach (string dirPath in Directory.GetDirectories(SourcePath, "*",
SearchOption.AllDirectories))
Directory.CreateDirectory(dirPath.Replace(SourcePath, DestinationPath));
//Copy all the files...
How can I stop redis-server?
...service redis-server stop and service redis-server start, after having installed it with apt-get install redis-server.
– Cloud Artisans
Oct 6 '15 at 2:15
1
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Swift 和 .Net 开源，回顾 2015 年 9 大开源事件 - 开源 & Github - 清泛网 - 专注IT技能提升
...第一次开源了，它早已因开源基于 Linux 的 Android 和 Chrome OS 而名声大噪。它也开源了很多其他的软件。
今年，Google 开源了人工智能（AI）发动机 TensorFlow，该公司表示“该系统最初是由 Google 机器智能研究组织下的 Google Brain 团...