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How do you create a random string that's suitable for a session ID in PostgreSQL?
...ollision"). The chance of one collision rises to 50% only after 261 UUIDs (2.3 x 10^18 or 2.3 quintillion) have been generated. Relating these numbers to databases, and considering the issue of whether the probability of a Version 4 UUID collision is negligible, consider a file containing 2.3 quinti...
Rounding float in Ruby
...er, I can only use .round which basically turns it into an int, meaning 2.34.round # => 2. Is there a simple effect way to do something like 2.3465 # => 2.35
...
Postgis installation: type “geometry” does not exist
...ema rather than public.
If you are creating you own schema, using postgis 2.3 or higher and encounter this error, do the following as stated here:
CREATE SCHEMA IF NOT EXISTS my_schema;
CREATE extension postgis;
UPDATE pg_extension
SET extrelocatable = TRUE
WHERE extname = 'postgis';
ALT...
Set selected item of spinner programmatically
...ion() just after setAdapter() seem to display the 1st item always (Android 2.3), even the good one is selected in the dropView. adding view.post() (@Marco Hernaiz Cao answer) fix it for me.
– Christ
Jun 20 '14 at 10:14
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How to set gradle home while importing existing project in Android studio
...
OS X + Homebrew: /usr/local/Cellar/gradle/2.3/libexec/
– akauppi
Feb 17 '15 at 18:49
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LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...定义的，也就是说，它的成员来自于其它已存在的集。
2.3 模型的集部分
集部分是LINGO模型的一个可选部分。在LINGO模型中使用集之前，必须在集部分事先定义。集部分以关键字“sets:”开始，以“endsets”结束。一个模型可以没...
请停下来重新想下 你究竟为何创业？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...！”。
但到最后，他们才是财神爷。
道德在与资本的大战中时常败北。这一切受贪婪的驱使，而当你服务于贪婪时，它更会变本加厉。
-“隐私也拿来卖？”
-“没问题啊！”
-“对待合同工就像对待一个二等公民合适么？...
parseInt vs unary plus, when to use which?
...l character, like the period that is intended to be a decimal point ..
+'2.3' === 2.3; //true
parseInt('2.3',10) === 2; //true
parseInt and parseFloat parses and builds the string left to right. If they see an invalid character, it returns what has been parsed (if any) as a number, a...
扒皮美女创业者：15分钟拿下薛蛮子 7家风投追捧 - 资讯 - 清泛网 - 专注C/C...
...使和a轮没敢这一轮退出
7. 原有商业模式挂掉，公司探索新模式，新故事融c轮，天使和a轮卖老股收回投资，c轮接盘笑哈哈
8. c轮投资人看不下去创始人胡闹，开除创始人，三个月后公司卒，创始人移民加村，豪宅游艇辣妹！
4...
凤姐当天使 徐小平胡海泉薛蛮子王刚怎么看？ - 资讯 - 清泛网 - 专注C/C++...
...要靠凤姐，靠薛蛮子就可以了，全中国人民第一次在中央新闻联播知道了什么叫天使投资人。这是对天使投资最大的一个宣传。
孵化器和中国国家发展战略、众创空间被越弄越高。我们在广东地区做孵化器可能还算是比较早的...